feat(ui): collapse connect instance panel when instances exist

Reviewed-on: http://gitea.lan:3000/robbond/pleskSaas/pulls/26

.env.example

@@ -4,6 +4,7 @@ SUPABASE_SERVICE_ROLE_KEY=
 
 NEXT_PUBLIC_APP_URL=http://localhost:3000
 JOB_SECRET=
+CRON_SECRET=
 
 ENCRYPTION_KEY=
 PLESK_CRED_ENC_KEY=

README.md

@@ -63,7 +63,9 @@ values ('<agency_uuid>', '<auth_user_uuid>', 'owner');
 
 - `POST /api/plesk/instances` — create + validate Plesk connection
 - `POST /api/plesk/instances/:id/sync` — pull/sync subscriptions + domains from one Plesk instance
+- `POST /api/plesk/instances/:id/autosync` — update auto-sync enabled/frequency for one Plesk instance
 - `POST /api/jobs/plesk-sync-all` — background sync job for all connected instances (requires `X-JOB-SECRET`)
+- `POST /api/cron/autosync` — scheduled auto-sync tick (requires `X-CRON-SECRET`)
 - `POST /api/plesk/subscriptions/:id/action` — suspend or unsuspend
 - `POST /api/stripe/checkout` — create Stripe Checkout session
 - `POST /api/stripe/portal` — create Stripe Customer Portal session
@@ -74,6 +76,7 @@ values ('<agency_uuid>', '<auth_user_uuid>', 'owner');
 - Set a strong `ENCRYPTION_KEY`; it encrypts stored Plesk auth secrets.
 - Set a strong `PLESK_CRED_ENC_KEY` (32-byte base64 or 64-char hex) for Plesk credential encryption.
 - Set `JOB_SECRET` for internal cron-triggered job auth.
+- Set `CRON_SECRET` for `/api/cron/autosync` auth.
 - `/api/stripe/webhook` is excluded from auth middleware for Stripe signature verification.
 - Current implementation is intentionally MVP-focused; add stronger validation, retries, idempotency keys, and richer error observability for production.
 
@@ -97,3 +100,37 @@ Notes:
 - Job uses DB lock (`job_locks`) to avoid overlapping runs.
 - Job processes at most 10 connected instances per run.
 - Instances synced in the last 3 minutes are skipped.
+
+## 6) Auto Sync Worker (CL6)
+
+New scheduler fields live on `plesk_instances`:
+
+- `auto_sync_enabled`
+- `auto_sync_frequency_minutes`
+- `last_auto_sync_at`
+- `next_auto_sync_at`
+- `auto_sync_lock_until`
+- `auto_sync_lock_token`
+
+Endpoint for periodic worker ticks:
+
+```bash
+curl -sS -X POST http://localhost:3000/api/cron/autosync \
+  -H "X-CRON-SECRET: <CRON_SECRET>"
+```
+
+Recommended system cron (every 5 minutes):
+
+```cron
+*/5 * * * * curl -sS -X POST https://<your-host>/api/cron/autosync -H "X-CRON-SECRET: ${CRON_SECRET}"
+```
+
+Or schedule the same call from Jenkins.
+
+Worker safety behavior:
+
+- processes at most 5 instances per tick
+- concurrency limited to 2 at a time
+- per-instance lock lease 15 minutes
+- per-instance timeout guard 14 minutes
+- per-instance failures are isolated and logged to `actions_log`

app/api/cron/autosync/route.ts

@@ -0,0 +1,38 @@
+import { NextResponse } from "next/server";
+
+import { env } from "@/lib/env";
+import { runAutoSyncTick } from "@/lib/plesk/auto-sync";
+import { createSupabaseAdminClient } from "@/lib/supabase/admin";
+
+export async function POST(req: Request) {
+  const startedAt = Date.now();
+
+  try {
+    const secret = req.headers.get("x-cron-secret");
+    if (!env.cronSecret || !secret || secret !== env.cronSecret) {
+      return NextResponse.json({ error: "Unauthorized" }, { status: 401 });
+    }
+
+    const supabase = createSupabaseAdminClient() as any;
+    const summary = await runAutoSyncTick(supabase);
+
+    return NextResponse.json({
+      ...summary,
+      duration_ms: Date.now() - startedAt,
+    });
+  } catch (error) {
+    console.error("[autosync cron] failed", error);
+
+    return NextResponse.json(
+      {
+        error: "Auto-sync job failed",
+        instances_considered: 0,
+        locks_acquired: 0,
+        succeeded: 0,
+        failed: 0,
+        duration_ms: Date.now() - startedAt,
+      },
+      { status: 500 },
+    );
+  }
+}

app/api/cron/health/route.ts

@@ -0,0 +1,38 @@
+import { NextResponse } from "next/server";
+
+import { env } from "@/lib/env";
+import { runHealthCheckTick } from "@/lib/plesk/health";
+import { createSupabaseAdminClient } from "@/lib/supabase/admin";
+
+export async function POST(req: Request) {
+  const startedAt = Date.now();
+
+  try {
+    const secret = req.headers.get("x-cron-secret");
+    if (!env.cronSecret || !secret || secret !== env.cronSecret) {
+      return NextResponse.json({ error: "Unauthorized" }, { status: 401 });
+    }
+
+    const supabase = createSupabaseAdminClient() as any;
+    const summary = await runHealthCheckTick(supabase);
+
+    return NextResponse.json({
+      ...summary,
+      duration_ms: Date.now() - startedAt,
+    });
+  } catch (error) {
+    console.error("[health cron] failed", error);
+
+    return NextResponse.json(
+      {
+        error: "Health check job failed",
+        checked: 0,
+        ok: 0,
+        degraded: 0,
+        failed: 0,
+        duration_ms: Date.now() - startedAt,
+      },
+      { status: 500 },
+    );
+  }
+}

app/api/plesk/instances/[id]/autosync/route.ts

@@ -0,0 +1,87 @@
+import { NextResponse } from "next/server";
+import { z } from "zod";
+
+import { assertAgencyAdmin, getRouteAgencyContextOrThrow } from "@/lib/agency";
+import { assertRateLimit } from "@/lib/api/rate-limit";
+import { assertSameOrigin } from "@/lib/api/security";
+import { createSupabaseRouteClient } from "@/lib/supabase/route";
+
+const autosyncSchema = z.object({
+  auto_sync_enabled: z.boolean(),
+  auto_sync_frequency_minutes: z.number().int().min(5).max(10080).optional(),
+});
+
+export async function POST(
+  req: Request,
+  { params }: { params: { id: string } },
+) {
+  try {
+    assertSameOrigin(req);
+
+    const context = await getRouteAgencyContextOrThrow();
+    assertAgencyAdmin(context);
+    assertRateLimit(`plesk-autosync-settings:${context.userId}`, 20, 60_000);
+
+    const input = autosyncSchema.parse(await req.json());
+    const frequency = input.auto_sync_frequency_minutes ?? 60;
+    const nowIso = new Date().toISOString();
+    const nextAtIso = new Date(
+      Date.now() + frequency * 60 * 1000,
+    ).toISOString();
+
+    const supabase = createSupabaseRouteClient() as any;
+
+    const updates = {
+      auto_sync_enabled: input.auto_sync_enabled,
+      auto_sync_frequency_minutes: frequency,
+      next_auto_sync_at: input.auto_sync_enabled ? nextAtIso : null,
+      auto_sync_lock_until: null,
+      auto_sync_lock_token: null,
+      last_auto_sync_at: input.auto_sync_enabled ? undefined : null,
+    } as Record<string, unknown>;
+
+    const { data: instance, error } = await supabase
+      .from("plesk_instances")
+      .update(updates)
+      .eq("id", params.id)
+      .eq("agency_id", context.agencyId)
+      .select(
+        "id, auto_sync_enabled, auto_sync_frequency_minutes, last_auto_sync_at, next_auto_sync_at, auto_sync_lock_until",
+      )
+      .single();
+
+    if (error || !instance) {
+      throw new Error(error?.message ?? "Plesk instance not found");
+    }
+
+    try {
+      await supabase.from("actions_log").insert({
+        agency_id: context.agencyId,
+        actor_user_id: context.userId,
+        target_type: "plesk_instance",
+        target_id: params.id,
+        action: "autosync_settings_updated",
+        status: "success",
+        metadata: {
+          auto_sync_enabled: input.auto_sync_enabled,
+          auto_sync_frequency_minutes: frequency,
+          updated_at: nowIso,
+        },
+      });
+    } catch {
+      // best effort logging
+    }
+
+    return NextResponse.json({ instance });
+  } catch (error) {
+    return NextResponse.json(
+      {
+        error:
+          error instanceof Error
+            ? error.message
+            : "Failed to update auto-sync settings",
+      },
+      { status: 400 },
+    );
+  }
+}

app/api/plesk/instances/[id]/health/route.ts

@@ -0,0 +1,73 @@
+import { NextResponse } from "next/server";
+
+import { assertAgencyAdmin, getRouteAgencyContextOrThrow } from "@/lib/agency";
+import { assertRateLimit } from "@/lib/api/rate-limit";
+import { assertSameOrigin } from "@/lib/api/security";
+import { runInstanceHealthCheck } from "@/lib/plesk/health";
+import { createSupabaseRouteClient } from "@/lib/supabase/route";
+
+export async function POST(
+  req: Request,
+  { params }: { params: { id: string } },
+) {
+  try {
+    assertSameOrigin(req);
+
+    const context = await getRouteAgencyContextOrThrow();
+    assertAgencyAdmin(context);
+    assertRateLimit(`plesk-health-check:${context.userId}`, 20, 60_000);
+
+    const supabase = createSupabaseRouteClient() as any;
+
+    const { data: instance, error: instanceError } = await supabase
+      .from("plesk_instances")
+      .select(
+        "id, agency_id, base_url, auth_type, encrypted_secret, health_enabled, health_check_frequency_minutes, health_next_check_at, health_lock_until",
+      )
+      .eq("id", params.id)
+      .eq("agency_id", context.agencyId)
+      .single();
+
+    if (instanceError || !instance) {
+      throw new Error("Plesk instance not found");
+    }
+
+    const result = await runInstanceHealthCheck(supabase, instance, {
+      actorUserId: context.userId,
+      force: true,
+      source: "manual",
+    });
+
+    if (!result.checked) {
+      return NextResponse.json(
+        { error: "Health check is already running for this instance" },
+        { status: 409 },
+      );
+    }
+
+    const { data: updated } = await supabase
+      .from("plesk_instances")
+      .select(
+        "id, health_enabled, health_status, health_last_checked_at, health_last_ok_at, health_last_error, health_last_latency_ms, health_check_frequency_minutes, health_next_check_at",
+      )
+      .eq("id", params.id)
+      .eq("agency_id", context.agencyId)
+      .single();
+
+    return NextResponse.json({
+      ok: true,
+      result,
+      instance: updated,
+    });
+  } catch (error) {
+    return NextResponse.json(
+      {
+        error:
+          error instanceof Error
+            ? error.message
+            : "Health check execution failed",
+      },
+      { status: 400 },
+    );
+  }
+}

app/dashboard/activity/page.tsx

@@ -0,0 +1,297 @@
+import Link from "next/link";
+
+import { getServerAgencyContextOrRedirect } from "@/lib/agency";
+import { createSupabaseServerClient } from "@/lib/supabase/server";
+import { formatDateTime } from "@/lib/dates";
+
+const PAGE_SIZE = 50;
+
+type SearchParams = {
+  page?: string;
+  instance?: string;
+  action?: string;
+  status?: string;
+};
+
+function getSingleParam(value: string | string[] | undefined) {
+  if (!value) return "";
+  return Array.isArray(value) ? (value[0] ?? "") : value;
+}
+
+function buildQueryString(next: Record<string, string | number | undefined>) {
+  const params = new URLSearchParams();
+
+  for (const [key, value] of Object.entries(next)) {
+    if (value == null) continue;
+    const normalized = String(value);
+    if (!normalized) continue;
+    params.set(key, normalized);
+  }
+
+  return params.toString();
+}
+
+export default async function ActivityPage({
+  searchParams,
+}: {
+  searchParams?: SearchParams;
+}) {
+  const context = await getServerAgencyContextOrRedirect();
+  const supabase = createSupabaseServerClient() as any;
+
+  const selectedInstance = getSingleParam(searchParams?.instance);
+  const selectedAction = getSingleParam(searchParams?.action);
+  const selectedStatus = getSingleParam(searchParams?.status);
+  const page = Math.max(
+    Number(getSingleParam(searchParams?.page) || "1") || 1,
+    1,
+  );
+
+  const { data: instances } = await supabase
+    .from("plesk_instances")
+    .select("id, name, base_url")
+    .eq("agency_id", context.agencyId)
+    .order("name", { ascending: true });
+
+  let baseQuery = supabase
+    .from("actions_log")
+    .select(
+      "id, created_at, target_type, target_id, action, status, error_message, metadata",
+      { count: "exact" },
+    )
+    .eq("agency_id", context.agencyId)
+    .order("created_at", { ascending: false });
+
+  if (selectedAction) {
+    baseQuery = baseQuery.eq("action", selectedAction);
+  }
+
+  if (selectedStatus) {
+    baseQuery = baseQuery.eq("status", selectedStatus);
+  }
+
+  if (selectedInstance) {
+    baseQuery = baseQuery.or(
+      `target_id.eq.${selectedInstance},metadata->>plesk_instance_id.eq.${selectedInstance}`,
+    );
+  }
+
+  const from = (page - 1) * PAGE_SIZE;
+  const to = from + PAGE_SIZE - 1;
+
+  const { data: logs, count } = await baseQuery.range(from, to);
+
+  const { data: recentForActions } = await supabase
+    .from("actions_log")
+    .select("action")
+    .eq("agency_id", context.agencyId)
+    .order("created_at", { ascending: false })
+    .limit(200);
+
+  const actionOptions = Array.from(
+    new Set((recentForActions ?? []).map((entry: any) => String(entry.action))),
+  ).sort();
+
+  const instanceNameById = new Map<string, string>(
+    (instances ?? []).map((instance: any) => [
+      String(instance.id),
+      String(instance.name ?? instance.base_url ?? instance.id),
+    ]),
+  );
+
+  const total = count ?? 0;
+  const hasPrev = page > 1;
+  const hasNext = to + 1 < total;
+
+  return (
+    <main className="mx-auto w-full max-w-6xl space-y-4 px-6 py-8">
+      <div className="flex items-center justify-between">
+        <div>
+          <h1 className="text-2xl font-bold text-slate-900">Activity Log</h1>
+          <p className="text-sm text-slate-600">
+            Recent actions for your agency
+          </p>
+        </div>
+        <Link href="/dashboard" className="text-sm text-brand-700 underline">
+          Back to dashboard
+        </Link>
+      </div>
+
+      <form className="grid gap-2 rounded-xl border border-slate-200 bg-white p-4 md:grid-cols-4">
+        <div>
+          <label className="text-xs font-medium text-slate-600">Instance</label>
+          <select
+            name="instance"
+            defaultValue={selectedInstance}
+            className="mt-1 w-full rounded border border-slate-300 px-2 py-1.5 text-sm"
+          >
+            <option value="">All instances</option>
+            {(instances ?? []).map((instance: any) => (
+              <option key={String(instance.id)} value={String(instance.id)}>
+                {String(instance.name ?? instance.base_url ?? instance.id)}
+              </option>
+            ))}
+          </select>
+        </div>
+
+        <div>
+          <label className="text-xs font-medium text-slate-600">Action</label>
+          <select
+            name="action"
+            defaultValue={selectedAction}
+            className="mt-1 w-full rounded border border-slate-300 px-2 py-1.5 text-sm"
+          >
+            <option value="">All actions</option>
+            {actionOptions.map((action) => (
+              <option key={action} value={action}>
+                {action}
+              </option>
+            ))}
+          </select>
+        </div>
+
+        <div>
+          <label className="text-xs font-medium text-slate-600">Status</label>
+          <select
+            name="status"
+            defaultValue={selectedStatus}
+            className="mt-1 w-full rounded border border-slate-300 px-2 py-1.5 text-sm"
+          >
+            <option value="">All statuses</option>
+            <option value="pending">Pending</option>
+            <option value="success">Success</option>
+            <option value="failed">Failed</option>
+          </select>
+        </div>
+
+        <div className="flex items-end gap-2">
+          <button className="rounded border px-3 py-1.5 text-sm">Apply</button>
+          <Link
+            href="/dashboard/activity"
+            className="rounded border px-3 py-1.5 text-sm"
+          >
+            Reset
+          </Link>
+        </div>
+      </form>
+
+      <div className="overflow-x-auto rounded-xl border border-slate-200 bg-white">
+        <table className="min-w-full text-left text-sm">
+          <thead>
+            <tr className="border-b border-slate-200 text-xs uppercase text-slate-500">
+              <th className="px-3 py-2">Time</th>
+              <th className="px-3 py-2">Instance</th>
+              <th className="px-3 py-2">Action</th>
+              <th className="px-3 py-2">Target</th>
+              <th className="px-3 py-2">Status</th>
+              <th className="px-3 py-2">Message</th>
+              <th className="px-3 py-2">Details</th>
+            </tr>
+          </thead>
+          <tbody>
+            {(logs ?? []).length === 0 ? (
+              <tr>
+                <td className="px-3 py-4 text-slate-500" colSpan={7}>
+                  No activity found.
+                </td>
+              </tr>
+            ) : (
+              (logs ?? []).map((row: any) => {
+                const metadata =
+                  row?.metadata && typeof row.metadata === "object"
+                    ? (row.metadata as Record<string, unknown>)
+                    : null;
+
+                const instanceId =
+                  (metadata?.plesk_instance_id as string | undefined) ??
+                  (row.target_type === "plesk_instance"
+                    ? (row.target_id as string | null)
+                    : null);
+
+                return (
+                  <tr
+                    key={row.id}
+                    className="border-b border-slate-100 align-top"
+                  >
+                    <td className="px-3 py-2">
+                      {formatDateTime(row.created_at)}
+                    </td>
+                    <td className="px-3 py-2">
+                      {instanceId
+                        ? (instanceNameById.get(instanceId) ?? instanceId)
+                        : "-"}
+                    </td>
+                    <td className="px-3 py-2">{row.action ?? "-"}</td>
+                    <td className="px-3 py-2">
+                      {row.target_type ?? "-"}
+                      {row.target_id ? ` (${row.target_id})` : ""}
+                    </td>
+                    <td className="px-3 py-2">{row.status ?? "-"}</td>
+                    <td className="px-3 py-2">{row.error_message ?? "-"}</td>
+                    <td className="px-3 py-2">
+                      {metadata ? (
+                        <details>
+                          <summary className="cursor-pointer text-xs text-brand-700">
+                            View
+                          </summary>
+                          <pre className="mt-1 max-w-[460px] overflow-auto rounded bg-slate-50 p-2 text-[11px] text-slate-700">
+                            {JSON.stringify(metadata, null, 2)}
+                          </pre>
+                        </details>
+                      ) : (
+                        "-"
+                      )}
+                    </td>
+                  </tr>
+                );
+              })
+            )}
+          </tbody>
+        </table>
+      </div>
+
+      <div className="flex items-center justify-between text-sm">
+        <p className="text-slate-500">
+          Showing {Math.min(total, from + 1)} - {Math.min(total, to + 1)} of{" "}
+          {total}
+        </p>
+        <div className="flex gap-2">
+          {hasPrev ? (
+            <Link
+              href={`/dashboard/activity?${buildQueryString({
+                page: page - 1,
+                instance: selectedInstance,
+                action: selectedAction,
+                status: selectedStatus,
+              })}`}
+              className="rounded border px-3 py-1.5"
+            >
+              Previous
+            </Link>
+          ) : (
+            <span className="rounded border px-3 py-1.5 text-slate-400">
+              Previous
+            </span>
+          )}
+          {hasNext ? (
+            <Link
+              href={`/dashboard/activity?${buildQueryString({
+                page: page + 1,
+                instance: selectedInstance,
+                action: selectedAction,
+                status: selectedStatus,
+              })}`}
+              className="rounded border px-3 py-1.5"
+            >
+              Next
+            </Link>
+          ) : (
+            <span className="rounded border px-3 py-1.5 text-slate-400">
+              Next
+            </span>
+          )}
+        </div>
+      </div>
+    </main>
+  );
+}

app/dashboard/page.tsx

@@ -1,8 +1,10 @@
 import { SignOutButton } from "@/components/auth/sign-out-button";
 import { DashboardControls } from "@/components/dashboard/dashboard-controls";
 import { getServerAgencyContextOrRedirect } from "@/lib/agency";
+import { formatDateTime } from "@/lib/dates";
 import type { Database } from "@/lib/types";
 import { createSupabaseServerClient } from "@/lib/supabase/server";
+import Link from "next/link";
 
 type AgencySummary = Pick<
   Database["public"]["Tables"]["agencies"]["Row"],
@@ -16,6 +18,78 @@ type ActionLogSummary = Pick<
   Database["public"]["Tables"]["actions_log"]["Row"],
   "target_id" | "status" | "action" | "created_at" | "error_message"
 >;
+type AutosyncLatestLogSummary = Pick<
+  Database["public"]["Tables"]["actions_log"]["Row"],
+  "created_at"
+>;
+type HealthLogSummary = Pick<
+  Database["public"]["Tables"]["actions_log"]["Row"],
+  | "id"
+  | "target_id"
+  | "status"
+  | "action"
+  | "created_at"
+  | "error_message"
+  | "metadata"
+>;
+
+const RELATIVE_TIME_FORMATTER = new Intl.RelativeTimeFormat("en", {
+  numeric: "auto",
+});
+
+function getLatestTimestamp(values: Array<string | null | undefined>) {
+  let latestIso: string | null = null;
+  let latestMs = Number.NEGATIVE_INFINITY;
+
+  for (const value of values) {
+    if (!value) continue;
+    const parsed = new Date(value).getTime();
+    if (Number.isNaN(parsed)) continue;
+    if (parsed > latestMs) {
+      latestMs = parsed;
+      latestIso = value;
+    }
+  }
+
+  return latestIso;
+}
+
+function formatRelativeTime(value?: string | null) {
+  if (!value) return null;
+
+  const targetMs = new Date(value).getTime();
+  if (Number.isNaN(targetMs)) return null;
+
+  const deltaSeconds = Math.round((targetMs - Date.now()) / 1000);
+  const absSeconds = Math.abs(deltaSeconds);
+
+  if (absSeconds < 60) {
+    return RELATIVE_TIME_FORMATTER.format(deltaSeconds, "second");
+  }
+
+  const deltaMinutes = Math.round(deltaSeconds / 60);
+  if (Math.abs(deltaMinutes) < 60) {
+    return RELATIVE_TIME_FORMATTER.format(deltaMinutes, "minute");
+  }
+
+  const deltaHours = Math.round(deltaMinutes / 60);
+  if (Math.abs(deltaHours) < 24) {
+    return RELATIVE_TIME_FORMATTER.format(deltaHours, "hour");
+  }
+
+  const deltaDays = Math.round(deltaHours / 24);
+  if (Math.abs(deltaDays) < 30) {
+    return RELATIVE_TIME_FORMATTER.format(deltaDays, "day");
+  }
+
+  const deltaMonths = Math.round(deltaDays / 30);
+  if (Math.abs(deltaMonths) < 12) {
+    return RELATIVE_TIME_FORMATTER.format(deltaMonths, "month");
+  }
+
+  const deltaYears = Math.round(deltaMonths / 12);
+  return RELATIVE_TIME_FORMATTER.format(deltaYears, "year");
+}
 
 function normalizeDomainLike(value: string) {
   return value.trim().toLowerCase().replace(/\.$/, "");
@@ -48,6 +122,8 @@ export default async function DashboardPage() {
     { data: domains },
     { data: billing },
     { data: autoSyncLogs },
+    { data: latestAutoSyncLog },
+    { data: healthLogs },
   ] = (await Promise.all([
     supabase
       .from("agencies")
@@ -57,7 +133,7 @@ export default async function DashboardPage() {
     supabase
       .from("plesk_instances")
       .select(
-        "id, name, base_url, auth_type, status, error_message, last_connected_at, last_sync_at, last_sync_status, last_sync_error, last_sync_subscriptions, last_sync_domains",
+        "id, name, base_url, auth_type, status, error_message, last_connected_at, last_sync_at, last_sync_status, last_sync_error, last_sync_subscriptions, last_sync_domains, auto_sync_enabled, auto_sync_frequency_minutes, last_auto_sync_at, next_auto_sync_at, auto_sync_lock_until, health_enabled, health_status, health_last_checked_at, health_last_ok_at, health_last_error, health_last_latency_ms, health_check_frequency_minutes, health_next_check_at, health_lock_until",
       )
       .eq("agency_id", context.agencyId)
       .order("created_at", { ascending: false }),
@@ -88,6 +164,31 @@ export default async function DashboardPage() {
       .eq("action", "plesk_sync_auto")
       .order("created_at", { ascending: false })
       .limit(200),
+    supabase
+      .from("actions_log")
+      .select("created_at")
+      .eq("agency_id", context.agencyId)
+      .eq("target_type", "plesk_instance")
+      .eq("action", "autosync_completed")
+      .eq("status", "success")
+      .order("created_at", { ascending: false })
+      .limit(1)
+      .maybeSingle(),
+    supabase
+      .from("actions_log")
+      .select(
+        "id, target_id, status, action, created_at, error_message, metadata",
+      )
+      .eq("agency_id", context.agencyId)
+      .eq("target_type", "plesk_instance")
+      .in("action", [
+        "health_check_started",
+        "health_check_ok",
+        "health_check_degraded",
+        "health_check_failed",
+      ])
+      .order("created_at", { ascending: false })
+      .limit(400),
   ])) as [
     { data: AgencySummary | null },
     {
@@ -104,6 +205,20 @@ export default async function DashboardPage() {
         last_sync_error: string | null;
         last_sync_subscriptions: number;
         last_sync_domains: number;
+        auto_sync_enabled: boolean;
+        auto_sync_frequency_minutes: number;
+        last_auto_sync_at: string | null;
+        next_auto_sync_at: string | null;
+        auto_sync_lock_until: string | null;
+        health_enabled: boolean;
+        health_status: "ok" | "degraded" | "down" | "unknown";
+        health_last_checked_at: string | null;
+        health_last_ok_at: string | null;
+        health_last_error: string | null;
+        health_last_latency_ms: number | null;
+        health_check_frequency_minutes: number;
+        health_next_check_at: string | null;
+        health_lock_until: string | null;
       }> | null;
       error: { message: string } | null;
     },
@@ -132,6 +247,8 @@ export default async function DashboardPage() {
     },
     { data: BillingSummary | null },
     { data: ActionLogSummary[] | null },
+    { data: AutosyncLatestLogSummary | null },
+    { data: HealthLogSummary[] | null },
   ];
 
   const domainInstanceIds = Array.from(
@@ -224,6 +341,67 @@ export default async function DashboardPage() {
     });
   }
 
+  const healthEventsByInstance = new Map<
+    string,
+    Array<{
+      id: string;
+      action: string;
+      status: string;
+      created_at: string;
+      error_message: string | null;
+      metadata: unknown;
+    }>
+  >();
+
+  for (const log of healthLogs ?? []) {
+    if (!log.target_id) continue;
+    const existing = healthEventsByInstance.get(log.target_id) ?? [];
+    if (existing.length >= 10) continue;
+    existing.push({
+      id: log.id,
+      action: log.action,
+      status: log.status,
+      created_at: log.created_at,
+      error_message: log.error_message,
+      metadata: log.metadata,
+    });
+    healthEventsByInstance.set(log.target_id, existing);
+  }
+
+  const healthCounts = { ok: 0, degraded: 0, down: 0, unknown: 0 };
+
+  for (const instance of instances ?? []) {
+    const status = (instance.health_status ?? "unknown") as
+      | "ok"
+      | "degraded"
+      | "down"
+      | "unknown";
+    if (status === "ok") healthCounts.ok += 1;
+    else if (status === "degraded") healthCounts.degraded += 1;
+    else if (status === "down") healthCounts.down += 1;
+    else healthCounts.unknown += 1;
+  }
+
+  const latestHealthCheckAt = getLatestTimestamp(
+    (instances ?? []).map((instance) => instance.health_last_checked_at),
+  );
+
+  const autoSyncEnabledCount = (instances ?? []).filter(
+    (instance) => instance.auto_sync_enabled,
+  ).length;
+
+  const latestAutoSyncFromInstances = getLatestTimestamp(
+    (instances ?? []).map((instance) => instance.last_auto_sync_at),
+  );
+
+  const latestAutoSyncAt =
+    latestAutoSyncFromInstances ?? latestAutoSyncLog?.created_at ?? null;
+
+  const downInstanceNames = (instances ?? [])
+    .filter((instance) => instance.health_status === "down")
+    .slice(0, 3)
+    .map((instance) => instance.name || instance.base_url);
+
   return (
     <main className="mx-auto flex w-full max-w-6xl flex-col gap-6 px-6 py-8">
       <header className="flex items-center justify-between">
@@ -233,9 +411,100 @@ export default async function DashboardPage() {
           </h1>
           <p className="text-sm text-slate-600">Role: {context.role}</p>
         </div>
-        <SignOutButton />
+        <div className="flex items-center gap-3">
+          <Link
+            href="/dashboard/activity"
+            className="text-sm text-brand-700 underline"
+          >
+            Activity
+          </Link>
+          <SignOutButton />
+        </div>
       </header>
 
+      <section className="rounded-xl border border-slate-200 bg-white p-4">
+        <div className="space-y-3 text-sm text-slate-700">
+          <div>
+            <p className="text-xs font-semibold uppercase tracking-wide text-slate-500">
+              Instance Health
+            </p>
+            <div className="mt-1 flex flex-wrap gap-2">
+              <span className="rounded bg-emerald-100 px-2 py-0.5 text-xs font-medium text-emerald-700">
+                Ok: {healthCounts.ok}
+              </span>
+              <span className="rounded bg-amber-100 px-2 py-0.5 text-xs font-medium text-amber-700">
+                Degraded: {healthCounts.degraded}
+              </span>
+              <span className="rounded bg-rose-100 px-2 py-0.5 text-xs font-medium text-rose-700">
+                Down: {healthCounts.down}
+              </span>
+              <span className="rounded bg-slate-100 px-2 py-0.5 text-xs font-medium text-slate-700">
+                Unknown: {healthCounts.unknown}
+              </span>
+            </div>
+          </div>
+
+          {healthCounts.down > 0 ? (
+            <div className="rounded border border-rose-200 bg-rose-50 px-3 py-2 text-xs text-rose-700">
+              {healthCounts.down} instance{healthCounts.down === 1 ? "" : "s"}{" "}
+              down
+              {downInstanceNames.length > 0
+                ? `: ${downInstanceNames.join(", ")}${healthCounts.down > downInstanceNames.length ? ", …" : ""}`
+                : ""}
+            </div>
+          ) : null}
+
+          <div className="flex flex-wrap gap-3">
+            <p>
+              <span className="font-medium text-slate-900">
+                Last Health Check:
+              </span>{" "}
+              <span
+                title={
+                  latestHealthCheckAt
+                    ? formatDateTime(latestHealthCheckAt)
+                    : undefined
+                }
+              >
+                {formatRelativeTime(latestHealthCheckAt) ?? "Never"}
+              </span>
+            </p>
+            <p>
+              <span className="font-medium text-slate-900">Auto Sync:</span>{" "}
+              Enabled on {autoSyncEnabledCount} instance
+              {autoSyncEnabledCount === 1 ? "" : "s"}
+            </p>
+            <p>
+              <span className="font-medium text-slate-900">Last run:</span>{" "}
+              <span
+                title={
+                  latestAutoSyncAt
+                    ? formatDateTime(latestAutoSyncAt)
+                    : undefined
+                }
+              >
+                {formatRelativeTime(latestAutoSyncAt) ?? "Not yet run"}
+              </span>
+            </p>
+          </div>
+
+          <div className="flex flex-wrap gap-2 pt-1">
+            <Link
+              href="/dashboard#instances-panel"
+              className="rounded border border-slate-300 px-3 py-1.5 text-xs font-medium text-slate-700"
+            >
+              Instances
+            </Link>
+            <Link
+              href="/dashboard/activity"
+              className="rounded border border-slate-300 px-3 py-1.5 text-xs font-medium text-slate-700"
+            >
+              Activity
+            </Link>
+          </div>
+        </div>
+      </section>
+
       <section className="grid gap-4 md:grid-cols-3">
         <div className="rounded-xl border border-slate-200 bg-white p-4">
           <p className="text-sm text-slate-500">Plesk Instances</p>
@@ -261,44 +530,49 @@ export default async function DashboardPage() {
           Instances query failed: {instancesError.message}
         </div>
       ) : null}
-      <DashboardControls
-        instances={instances ?? []}
-        subscriptions={subscriptions ?? []}
-        domains={(domains ?? []).map((domain) => {
-          const joinedStatusByLocalId = domain.subscription_id
-            ? subscriptionStatusById.get(domain.subscription_id)
-            : null;
-          const joinedStatusByExternalId = domain.external_subscription_id
-            ? subscriptionStatusByExternalId.get(
-                `${domain.plesk_instance_id}:${domain.external_subscription_id}`,
-              )
-            : null;
-          const joinedStatusByName = subscriptionStatusByInstanceAndName.get(
-            `${domain.plesk_instance_id}:${normalizeDomainLike(domain.domain_name)}`,
-          );
-          const joinedStatusBySuffix = findBestSuffixStatusMatch(
-            normalizeDomainLike(domain.domain_name),
-            subscriptionStatusNameCandidatesByInstance.get(
-              domain.plesk_instance_id,
-            ) ?? [],
-          );
-          const joinedStatus =
-            joinedStatusByLocalId ??
-            joinedStatusByExternalId ??
-            joinedStatusByName ??
-            joinedStatusBySuffix;
+      <section id="instances-panel">
+        <DashboardControls
+          instances={instances ?? []}
+          subscriptions={subscriptions ?? []}
+          domains={(domains ?? []).map((domain) => {
+            const joinedStatusByLocalId = domain.subscription_id
+              ? subscriptionStatusById.get(domain.subscription_id)
+              : null;
+            const joinedStatusByExternalId = domain.external_subscription_id
+              ? subscriptionStatusByExternalId.get(
+                  `${domain.plesk_instance_id}:${domain.external_subscription_id}`,
+                )
+              : null;
+            const joinedStatusByName = subscriptionStatusByInstanceAndName.get(
+              `${domain.plesk_instance_id}:${normalizeDomainLike(domain.domain_name)}`,
+            );
+            const joinedStatusBySuffix = findBestSuffixStatusMatch(
+              normalizeDomainLike(domain.domain_name),
+              subscriptionStatusNameCandidatesByInstance.get(
+                domain.plesk_instance_id,
+              ) ?? [],
+            );
+            const joinedStatus =
+              joinedStatusByLocalId ??
+              joinedStatusByExternalId ??
+              joinedStatusByName ??
+              joinedStatusBySuffix;
 
-          return {
-            ...domain,
-            status: joinedStatus ?? "unknown",
-            subscription_name: domain.subscription_id
-              ? (subscriptionDisplayNameById.get(domain.subscription_id) ??
-                null)
-              : null,
-          };
-        })}
-        autoSyncByInstance={Object.fromEntries(autoSyncByInstance.entries())}
-      />
+            return {
+              ...domain,
+              status: joinedStatus ?? "unknown",
+              subscription_name: domain.subscription_id
+                ? (subscriptionDisplayNameById.get(domain.subscription_id) ??
+                  null)
+                : null,
+            };
+          })}
+          autoSyncByInstance={Object.fromEntries(autoSyncByInstance.entries())}
+          healthEventsByInstance={Object.fromEntries(
+            healthEventsByInstance.entries(),
+          )}
+        />
+      </section>
     </main>
   );
 }

components/dashboard/dashboard-controls.tsx

@@ -1,6 +1,6 @@
 "use client";
 
-import { useState } from "react";
+import { useEffect, useState } from "react";
 import type { ChangeEvent } from "react";
 import type { FormEvent } from "react";
 import { formatDateTime } from "@/lib/dates";
@@ -18,6 +18,20 @@ type Instance = {
   last_sync_error: string | null;
   last_sync_subscriptions: number;
   last_sync_domains: number;
+  auto_sync_enabled: boolean;
+  auto_sync_frequency_minutes: number;
+  last_auto_sync_at: string | null;
+  next_auto_sync_at: string | null;
+  auto_sync_lock_until: string | null;
+  health_enabled: boolean;
+  health_status: "ok" | "degraded" | "down" | "unknown";
+  health_last_checked_at: string | null;
+  health_last_ok_at: string | null;
+  health_last_error: string | null;
+  health_last_latency_ms: number | null;
+  health_check_frequency_minutes: number;
+  health_next_check_at: string | null;
+  health_lock_until: string | null;
 };
 
 type Subscription = {
@@ -49,8 +63,44 @@ type Props = {
     string,
     { status: string; created_at: string; error_message: string | null }
   >;
+  healthEventsByInstance: Record<
+    string,
+    Array<{
+      id: string;
+      action: string;
+      status: string;
+      created_at: string;
+      error_message: string | null;
+      metadata: unknown;
+    }>
+  >;
 };
 
+function getHealthBadge(status: string | null) {
+  const normalized = (status ?? "unknown").toLowerCase();
+
+  if (normalized === "ok") {
+    return { label: "OK", className: "bg-emerald-100 text-emerald-700" };
+  }
+
+  if (normalized === "degraded") {
+    return { label: "Degraded", className: "bg-amber-100 text-amber-700" };
+  }
+
+  if (normalized === "down") {
+    return { label: "Down", className: "bg-rose-100 text-rose-700" };
+  }
+
+  return { label: "Unknown", className: "bg-slate-100 text-slate-600" };
+}
+
+function mapHealthResult(action: string) {
+  if (action === "health_check_ok") return "ok";
+  if (action === "health_check_degraded") return "degraded";
+  if (action === "health_check_failed") return "failed";
+  return "started";
+}
+
 function getDomainStatusBadge(status: string | null) {
   const normalized = (status ?? "unknown").toLowerCase();
 
@@ -115,7 +165,10 @@ export function DashboardControls({
   subscriptions,
   domains,
   autoSyncByInstance,
+  healthEventsByInstance,
 }: Props) {
+  const hasInstances = instances.length > 0;
+  const autoSyncFrequencyOptions = [15, 30, 60, 180, 360, 1440];
   const [instanceName, setInstanceName] = useState("");
   const [baseUrl, setBaseUrl] = useState("");
   const [authType, setAuthType] = useState<"api_key" | "basic">("api_key");
@@ -130,6 +183,39 @@ export function DashboardControls({
   const [domainStatus, setDomainStatus] = useState("all");
   const [message, setMessage] = useState<string | null>(null);
   const [loading, setLoading] = useState(false);
+  const [isConnectPanelOpen, setIsConnectPanelOpen] = useState(!hasInstances);
+
+  useEffect(() => {
+    if (!hasInstances) {
+      setIsConnectPanelOpen(true);
+      return;
+    }
+
+    const savedState = window.localStorage.getItem(
+      "dashboard_connect_panel_open",
+    );
+
+    if (savedState === "true") {
+      setIsConnectPanelOpen(true);
+      return;
+    }
+
+    if (savedState === "false") {
+      setIsConnectPanelOpen(false);
+      return;
+    }
+
+    setIsConnectPanelOpen(false);
+  }, [hasInstances]);
+
+  useEffect(() => {
+    if (!hasInstances) return;
+
+    window.localStorage.setItem(
+      "dashboard_connect_panel_open",
+      isConnectPanelOpen ? "true" : "false",
+    );
+  }, [hasInstances, isConnectPanelOpen]);
 
   const healthCounts = instances.reduce(
     (acc, instance) => {
@@ -239,6 +325,41 @@ export function DashboardControls({
     }
   }
 
+  async function onRunHealthCheck(instanceId: string) {
+    setLoading(true);
+    setMessage(null);
+    try {
+      await runRequest(`/api/plesk/instances/${instanceId}/health`);
+      setMessage("Health check completed.");
+      window.location.reload();
+    } catch (error) {
+      setMessage(
+        error instanceof Error ? error.message : "Health check failed",
+      );
+    } finally {
+      setLoading(false);
+    }
+  }
+
+  async function onUpdateAutoSync(
+    instanceId: string,
+    input: { auto_sync_enabled: boolean; auto_sync_frequency_minutes: number },
+  ) {
+    setLoading(true);
+    setMessage(null);
+    try {
+      await runRequest(`/api/plesk/instances/${instanceId}/autosync`, input);
+      setMessage("Auto-sync settings updated.");
+      window.location.reload();
+    } catch (error) {
+      setMessage(
+        error instanceof Error ? error.message : "Auto-sync update failed",
+      );
+    } finally {
+      setLoading(false);
+    }
+  }
+
   async function onSubscriptionAction() {
     if (!actionSubId) return;
     setLoading(true);
@@ -329,79 +450,102 @@ export function DashboardControls({
       </div>
 
       <div className="grid gap-4 lg:grid-cols-2">
-        <form
-          onSubmit={onCreateInstance}
-          className="space-y-3 rounded-xl border border-slate-200 bg-white p-4"
-        >
-          <h2 className="text-lg font-semibold">Connect Plesk Instance</h2>
-          <input
-            required
-            value={instanceName}
-            onChange={(e: ChangeEvent<HTMLInputElement>) =>
-              setInstanceName(e.target.value)
-            }
-            className="w-full rounded border border-slate-300 px-3 py-2 text-sm"
-            placeholder="Instance name"
-          />
-          <input
-            required
-            value={baseUrl}
-            onChange={(e: ChangeEvent<HTMLInputElement>) =>
-              setBaseUrl(e.target.value)
-            }
-            className="w-full rounded border border-slate-300 px-3 py-2 text-sm"
-            placeholder="https://plesk.example.com"
-          />
-          <select
-            value={authType}
-            onChange={(e: ChangeEvent<HTMLSelectElement>) =>
-              setAuthType(e.target.value as "api_key" | "basic")
-            }
-            className="w-full rounded border border-slate-300 px-3 py-2 text-sm"
-          >
-            <option value="api_key">API Key</option>
-            <option value="basic">Basic</option>
-          </select>
-          {authType === "api_key" ? (
-            <input
-              required
-              value={apiKey}
-              onChange={(e: ChangeEvent<HTMLInputElement>) =>
-                setApiKey(e.target.value)
-              }
-              className="w-full rounded border border-slate-300 px-3 py-2 text-sm"
-              placeholder="Plesk API key"
-            />
-          ) : (
-            <div className="grid gap-2 sm:grid-cols-2">
+        <div className="rounded-xl border border-slate-200 bg-white p-4">
+          <div className="flex items-center justify-between gap-3">
+            <h2 className="text-lg font-semibold">
+              {hasInstances
+                ? "Connect another Plesk instance"
+                : "Connect Plesk Instance"}
+            </h2>
+            {hasInstances ? (
+              <button
+                type="button"
+                onClick={() => setIsConnectPanelOpen((open) => !open)}
+                className="rounded border border-slate-300 px-3 py-1.5 text-xs font-medium text-slate-700"
+              >
+                {isConnectPanelOpen ? "Hide" : "Add instance"}
+              </button>
+            ) : null}
+          </div>
+
+          {!isConnectPanelOpen && hasInstances ? (
+            <p className="mt-2 text-sm text-slate-500">
+              Add another server when needed.
+            </p>
+          ) : null}
+
+          {isConnectPanelOpen ? (
+            <form onSubmit={onCreateInstance} className="mt-3 space-y-3">
               <input
                 required
-                value={username}
+                value={instanceName}
                 onChange={(e: ChangeEvent<HTMLInputElement>) =>
-                  setUsername(e.target.value)
+                  setInstanceName(e.target.value)
                 }
                 className="w-full rounded border border-slate-300 px-3 py-2 text-sm"
-                placeholder="Plesk username"
+                placeholder="Instance name"
               />
               <input
                 required
-                type="password"
-                value={password}
+                value={baseUrl}
                 onChange={(e: ChangeEvent<HTMLInputElement>) =>
-                  setPassword(e.target.value)
+                  setBaseUrl(e.target.value)
                 }
                 className="w-full rounded border border-slate-300 px-3 py-2 text-sm"
-                placeholder="Plesk password"
+                placeholder="https://plesk.example.com"
               />
-            </div>
-          )}
-          <button
-            disabled={loading}
-            className="rounded bg-brand-600 px-3 py-2 text-sm text-white"
-          >
-            Save & Validate
-          </button>
-        </form>
+              <select
+                value={authType}
+                onChange={(e: ChangeEvent<HTMLSelectElement>) =>
+                  setAuthType(e.target.value as "api_key" | "basic")
+                }
+                className="w-full rounded border border-slate-300 px-3 py-2 text-sm"
+              >
+                <option value="api_key">API Key</option>
+                <option value="basic">Basic</option>
+              </select>
+              {authType === "api_key" ? (
+                <input
+                  required
+                  value={apiKey}
+                  onChange={(e: ChangeEvent<HTMLInputElement>) =>
+                    setApiKey(e.target.value)
+                  }
+                  className="w-full rounded border border-slate-300 px-3 py-2 text-sm"
+                  placeholder="Plesk API key"
+                />
+              ) : (
+                <div className="grid gap-2 sm:grid-cols-2">
+                  <input
+                    required
+                    value={username}
+                    onChange={(e: ChangeEvent<HTMLInputElement>) =>
+                      setUsername(e.target.value)
+                    }
+                    className="w-full rounded border border-slate-300 px-3 py-2 text-sm"
+                    placeholder="Plesk username"
+                  />
+                  <input
+                    required
+                    type="password"
+                    value={password}
+                    onChange={(e: ChangeEvent<HTMLInputElement>) =>
+                      setPassword(e.target.value)
+                    }
+                    className="w-full rounded border border-slate-300 px-3 py-2 text-sm"
+                    placeholder="Plesk password"
+                  />
+                </div>
+              )}
+              <button
+                disabled={loading}
+                className="rounded bg-brand-600 px-3 py-2 text-sm text-white"
+              >
+                Save & Validate
+              </button>
+            </form>
+          ) : null}
+        </div>
 
         <div className="space-y-3 rounded-xl border border-slate-200 bg-white p-4">
           <h2 className="text-lg font-semibold">Plesk Instances</h2>
@@ -417,99 +561,308 @@ export function DashboardControls({
                   key={instance.id}
                   className="rounded border border-slate-200 p-3"
                 >
-                  <div className="flex items-start justify-between gap-2">
-                    <div>
-                      {autoSyncByInstance[instance.id] ? (
-                        <span
-                          className={`inline-flex rounded px-2 py-0.5 text-[11px] font-medium ${
-                            autoSyncByInstance[instance.id].status === "success"
-                              ? "bg-emerald-100 text-emerald-700"
-                              : "bg-rose-100 text-rose-700"
-                          }`}
-                        >
-                          Auto-sync {autoSyncByInstance[instance.id].status}
-                        </span>
-                      ) : null}
-                      <p className="text-sm font-semibold text-slate-900">
-                        {instance.name}
-                      </p>
-                      <p className="text-xs text-slate-500">
-                        {instance.base_url}
-                      </p>
-                      <p className="mt-1 text-xs text-slate-600">
-                        Status:{" "}
-                        <span className="font-medium">{instance.status}</span>
-                      </p>
-                      <p className="text-xs text-slate-500">
-                        Subscriptions: {instance.last_sync_subscriptions ?? 0}
-                      </p>
-                      <p className="text-xs text-slate-500">
-                        Domains: {instance.last_sync_domains ?? 0}
-                      </p>
-                      <p className="text-xs text-slate-500">
-                        Last sync status:{" "}
-                        <span
-                          className={`inline-flex rounded px-2 py-0.5 text-[11px] font-medium ${
-                            instance.last_sync_status === "success"
-                              ? "bg-emerald-100 text-emerald-700"
-                              : instance.last_sync_status === "failed" ||
-                                  instance.last_sync_status === "error"
-                                ? "bg-rose-100 text-rose-700"
-                                : "bg-slate-100 text-slate-600"
-                          }`}
-                        >
-                          {instance.last_sync_status ?? "unknown"}
+                  {(() => {
+                    const health = getHealthBadge(instance.health_status);
+
+                    return (
+                      <div className="flex items-start justify-between gap-2">
+                        <div>
+                          {autoSyncByInstance[instance.id] ? (
+                            <span
+                              className={`inline-flex rounded px-2 py-0.5 text-[11px] font-medium ${
+                                autoSyncByInstance[instance.id].status ===
+                                "success"
+                                  ? "bg-emerald-100 text-emerald-700"
+                                  : "bg-rose-100 text-rose-700"
+                              }`}
+                            >
+                              Auto-sync {autoSyncByInstance[instance.id].status}
+                            </span>
+                          ) : null}
+                          <p className="text-sm font-semibold text-slate-900">
+                            {instance.name}
+                          </p>
+                          <p className="text-xs text-slate-500">
+                            {instance.base_url}
+                          </p>
+                          <p className="mt-1 text-xs text-slate-600">
+                            Status:{" "}
+                            <span className="font-medium">
+                              {instance.status}
+                            </span>
+                          </p>
+                          <p className="text-xs text-slate-500">
+                            Health:{" "}
+                            <span
+                              title={instance.health_last_error ?? undefined}
+                              className={`inline-flex rounded px-2 py-0.5 text-[11px] font-medium ${health.className}`}
+                            >
+                              {health.label}
+                            </span>
+                          </p>
+                          <p className="text-xs text-slate-500">
+                            Health last checked:{" "}
+                            {formatDateTime(instance.health_last_checked_at)}
+                          </p>
+                          <p className="text-xs text-slate-500">
+                            Health latency:{" "}
+                            {instance.health_last_latency_ms != null
+                              ? `${instance.health_last_latency_ms} ms`
+                              : "—"}
+                          </p>
+                          <p className="text-xs text-slate-500">
+                            Subscriptions:{" "}
+                            {instance.last_sync_subscriptions ?? 0}
+                          </p>
+                          <p className="text-xs text-slate-500">
+                            Domains: {instance.last_sync_domains ?? 0}
+                          </p>
+                          <p className="text-xs text-slate-500">
+                            Last sync status:{" "}
+                            <span
+                              className={`inline-flex rounded px-2 py-0.5 text-[11px] font-medium ${
+                                instance.last_sync_status === "success"
+                                  ? "bg-emerald-100 text-emerald-700"
+                                  : instance.last_sync_status === "failed" ||
+                                      instance.last_sync_status === "error"
+                                    ? "bg-rose-100 text-rose-700"
+                                    : "bg-slate-100 text-slate-600"
+                              }`}
+                            >
+                              {instance.last_sync_status ?? "unknown"}
+                            </span>
+                          </p>
+                          <p className="text-xs text-slate-500">
+                            Last sync time:{" "}
+                            {formatDateTime(instance.last_sync_at)}
+                          </p>
+                          <p className="text-xs text-slate-500">
+                            Last connected:{" "}
+                            {instance.last_connected_at
+                              ? formatDateTime(instance.last_connected_at)
+                              : "never"}
+                          </p>
+                          <p className="text-xs text-slate-500">
+                            Auto-sync:{" "}
+                            {instance.auto_sync_enabled
+                              ? "Enabled"
+                              : "Disabled"}
+                          </p>
+                          <p className="text-xs text-slate-500">
+                            Auto-sync frequency:{" "}
+                            {instance.auto_sync_frequency_minutes ?? 60} min
+                          </p>
+                          <p className="text-xs text-slate-500">
+                            Last auto-sync:{" "}
+                            {formatDateTime(instance.last_auto_sync_at)}
+                          </p>
+                          <p className="text-xs text-slate-500">
+                            Next auto-sync:{" "}
+                            {formatDateTime(instance.next_auto_sync_at)}
+                          </p>
+                          <p className="text-xs text-slate-500">
+                            Lock status:{" "}
+                            {instance.auto_sync_lock_until &&
+                            new Date(instance.auto_sync_lock_until).getTime() >
+                              Date.now()
+                              ? "Sync in progress"
+                              : "Idle"}
+                          </p>
+                          {autoSyncByInstance[instance.id] ? (
+                            <p className="text-xs text-slate-500">
+                              Last auto-sync:{" "}
+                              {formatDateTime(
+                                autoSyncByInstance[instance.id].created_at,
+                              )}
+                            </p>
+                          ) : null}
+                          {instance.error_message ? (
+                            <p className="mt-1 text-xs text-rose-600">
+                              {instance.error_message}
+                            </p>
+                          ) : null}
+                          {instance.last_sync_error ? (
+                            <p className="mt-1 text-xs text-rose-600">
+                              Last sync error: {instance.last_sync_error}
+                            </p>
+                          ) : null}
+                          {autoSyncByInstance[instance.id]?.error_message ? (
+                            <p className="mt-1 text-xs text-rose-600">
+                              Auto-sync error:{" "}
+                              {autoSyncByInstance[instance.id].error_message}
+                            </p>
+                          ) : null}
+                          {instance.health_last_error ? (
+                            <p
+                              className="mt-1 text-xs text-rose-600"
+                              title={instance.health_last_error}
+                            >
+                              Health error: {instance.health_last_error}
+                            </p>
+                          ) : null}
+                        </div>
+                        <div className="flex flex-col gap-2">
+                          <div className="flex items-center gap-2">
+                            <label className="text-xs text-slate-600">
+                              Auto-sync
+                            </label>
+                            <input
+                              type="checkbox"
+                              checked={instance.auto_sync_enabled}
+                              onChange={(e: ChangeEvent<HTMLInputElement>) =>
+                                onUpdateAutoSync(instance.id, {
+                                  auto_sync_enabled: e.target.checked,
+                                  auto_sync_frequency_minutes:
+                                    instance.auto_sync_frequency_minutes ?? 60,
+                                })
+                              }
+                              disabled={loading}
+                            />
+                          </div>
+                          <select
+                            value={String(
+                              instance.auto_sync_frequency_minutes ?? 60,
+                            )}
+                            onChange={(e: ChangeEvent<HTMLSelectElement>) =>
+                              onUpdateAutoSync(instance.id, {
+                                auto_sync_enabled: instance.auto_sync_enabled,
+                                auto_sync_frequency_minutes: Number(
+                                  e.target.value,
+                                ),
+                              })
+                            }
+                            disabled={loading}
+                            className="rounded border px-2 py-1 text-xs"
+                          >
+                            {autoSyncFrequencyOptions.map((minutes) => (
+                              <option key={minutes} value={minutes}>
+                                Every {minutes} min
+                              </option>
+                            ))}
+                          </select>
+                          <button
+                            onClick={() => onTestConnection(instance.id)}
+                            disabled={loading}
+                            className="rounded border px-3 py-1.5 text-xs"
+                          >
+                            Test Connection
+                          </button>
+                          <button
+                            onClick={() => onRunHealthCheck(instance.id)}
+                            disabled={loading}
+                            className="rounded border px-3 py-1.5 text-xs"
+                          >
+                            Run Health Check
+                          </button>
+                          <button
+                            onClick={() => onSync(instance.id)}
+                            disabled={loading}
+                            className="rounded border px-3 py-1.5 text-xs"
+                          >
+                            Sync Now
+                          </button>
+                        </div>
+                      </div>
+                    );
+                  })()}
+
+                  <div className="mt-3 rounded border border-slate-100 bg-slate-50 p-3">
+                    <p className="text-xs font-semibold uppercase tracking-wide text-slate-600">
+                      Health Panel
+                    </p>
+                    <div className="mt-2 grid gap-1 text-xs text-slate-600 sm:grid-cols-2">
+                      <p>
+                        Current Status:{" "}
+                        <span className="font-medium">
+                          {getHealthBadge(instance.health_status).label}
                         </span>
                       </p>
-                      <p className="text-xs text-slate-500">
-                        Last sync time: {formatDateTime(instance.last_sync_at)}
+                      <p>
+                        Last Checked:{" "}
+                        <span className="font-medium">
+                          {formatDateTime(instance.health_last_checked_at)}
+                        </span>
                       </p>
-                      <p className="text-xs text-slate-500">
-                        Last connected:{" "}
-                        {instance.last_connected_at
-                          ? formatDateTime(instance.last_connected_at)
-                          : "never"}
+                      <p>
+                        Last Successful Check:{" "}
+                        <span className="font-medium">
+                          {formatDateTime(instance.health_last_ok_at)}
+                        </span>
+                      </p>
+                      <p>
+                        Latency:{" "}
+                        <span className="font-medium">
+                          {instance.health_last_latency_ms != null
+                            ? `${instance.health_last_latency_ms} ms`
+                            : "—"}
+                        </span>
+                      </p>
+                      <p className="sm:col-span-2">
+                        Last Error:{" "}
+                        <span className="font-medium">
+                          {instance.health_last_error ?? "—"}
+                        </span>
                       </p>
-                      {autoSyncByInstance[instance.id] ? (
-                        <p className="text-xs text-slate-500">
-                          Last auto-sync:{" "}
-                          {formatDateTime(
-                            autoSyncByInstance[instance.id].created_at,
-                          )}
-                        </p>
-                      ) : null}
-                      {instance.error_message ? (
-                        <p className="mt-1 text-xs text-rose-600">
-                          {instance.error_message}
-                        </p>
-                      ) : null}
-                      {instance.last_sync_error ? (
-                        <p className="mt-1 text-xs text-rose-600">
-                          Last sync error: {instance.last_sync_error}
-                        </p>
-                      ) : null}
-                      {autoSyncByInstance[instance.id]?.error_message ? (
-                        <p className="mt-1 text-xs text-rose-600">
-                          Auto-sync error:{" "}
-                          {autoSyncByInstance[instance.id].error_message}
-                        </p>
-                      ) : null}
                     </div>
-                    <div className="flex flex-col gap-2">
-                      <button
-                        onClick={() => onTestConnection(instance.id)}
-                        disabled={loading}
-                        className="rounded border px-3 py-1.5 text-xs"
-                      >
-                        Test Connection
-                      </button>
-                      <button
-                        onClick={() => onSync(instance.id)}
-                        disabled={loading}
-                        className="rounded border px-3 py-1.5 text-xs"
-                      >
-                        Sync Now
-                      </button>
+
+                    <div className="mt-3 overflow-x-auto">
+                      <table className="min-w-full text-left text-xs">
+                        <thead>
+                          <tr className="border-b border-slate-200 text-slate-500">
+                            <th className="px-2 py-1">Time</th>
+                            <th className="px-2 py-1">Event</th>
+                            <th className="px-2 py-1">Result</th>
+                            <th className="px-2 py-1">Message</th>
+                          </tr>
+                        </thead>
+                        <tbody>
+                          {(healthEventsByInstance[instance.id] ?? [])
+                            .length === 0 ? (
+                            <tr>
+                              <td
+                                className="px-2 py-2 text-slate-500"
+                                colSpan={4}
+                              >
+                                No health events yet.
+                              </td>
+                            </tr>
+                          ) : (
+                            (healthEventsByInstance[instance.id] ?? []).map(
+                              (event) => (
+                                <tr
+                                  key={event.id}
+                                  className="border-b border-slate-100 align-top"
+                                >
+                                  <td className="px-2 py-1">
+                                    {formatDateTime(event.created_at)}
+                                  </td>
+                                  <td className="px-2 py-1">{event.action}</td>
+                                  <td className="px-2 py-1">
+                                    {mapHealthResult(event.action)}
+                                  </td>
+                                  <td className="px-2 py-1">
+                                    {event.error_message ?? "—"}
+                                    {event.metadata ? (
+                                      <details>
+                                        <summary className="cursor-pointer text-[11px] text-brand-700">
+                                          metadata
+                                        </summary>
+                                        <pre className="mt-1 max-w-[440px] overflow-auto rounded bg-white p-2 text-[10px] text-slate-700">
+                                          {JSON.stringify(
+                                            event.metadata,
+                                            null,
+                                            2,
+                                          )}
+                                        </pre>
+                                      </details>
+                                    ) : null}
+                                  </td>
+                                </tr>
+                              ),
+                            )
+                          )}
+                        </tbody>
+                      </table>
                     </div>
                   </div>
                 </div>

docs/cline-super-prompt.md

@@ -0,0 +1,202 @@
+# Cline Development Super Prompt
+
+You are acting as a senior software engineer working on this repository.
+
+Before making any modifications you must understand the project structure and current implementation.
+
+Always read:
+
+`docs/ai-project-context.md`
+
+before implementing tasks.
+
+---
+
+## Working Method
+
+When given a task follow this process.
+
+Step 1  
+Search the repository for relevant code.
+
+Step 2  
+Identify the correct extension point for the feature.
+
+Step 3  
+Design the minimal safe implementation.
+
+Step 4  
+Modify only the required files.
+
+Step 5  
+Verify existing functionality remains intact.
+
+Never rewrite large parts of the system unless explicitly instructed.
+
+---
+
+## Repository Exploration Rules
+
+Before editing files:
+
+Search for related implementations.
+
+Look for:
+
+- plesk integration
+- sync logic
+- API routes
+- database queries
+- dashboard components
+
+Use existing patterns instead of creating new ones.
+
+---
+
+## Database Rules
+
+The project uses Supabase Postgres.
+
+Never introduce breaking schema changes.
+
+All schema updates must be done using safe migrations.
+
+Never remove columns that may contain production data.
+
+Always assume the database already contains data.
+
+---
+
+## Multi-Tenant Security
+
+This system is multi-tenant.
+
+Users belong to agencies.
+
+All queries must respect agency boundaries.
+
+Never bypass Supabase Row Level Security.
+
+Never expose data across agencies.
+
+---
+
+## Plesk Integration Safety
+
+The platform interacts with Plesk servers using both REST API and CLI commands.
+
+CLI output can vary between Plesk versions.
+
+Always parse CLI output defensively.
+
+Never assume fixed output formatting.
+
+External integration failures must not crash the application.
+
+---
+
+## Sync Pipeline Rules
+
+The sync system is critical to the platform.
+
+Never break existing sync behaviour.
+
+If one subscription fails during sync:
+
+Continue processing the rest.
+
+Log the failure.
+
+Do not abort the entire sync job.
+
+---
+
+## Logging Requirements
+
+Operational events should be written to:
+
+`actions_log`
+
+Examples include:
+
+- instance_connected
+- sync_started
+- sync_completed
+- subscription_suspended
+- subscription_unsuspended
+
+Logging errors must never break primary workflows.
+
+---
+
+## UI Safety
+
+Frontend components must:
+
+Handle missing or null data safely.
+
+Avoid crashing when API responses change.
+
+Display statuses using badges instead of raw text.
+
+---
+
+## Git Workflow
+
+The repository uses:
+
+`master` as the default branch.
+
+All development must occur in feature branches.
+
+Example workflow:
+
+```bash
+git checkout master
+git pull
+git checkout -b feature/<feature-name>
+```
+
+Commit frequently with clear commit messages.
+
+Never commit directly to master.
+
+---
+
+## Implementation Guidelines
+
+Prefer small modular changes.
+
+Avoid large refactors unless requested.
+
+Keep API routes lightweight.
+
+Place integration logic inside lib folders.
+
+Reuse existing utilities where possible.
+
+---
+
+## Error Handling
+
+External services can fail.
+
+Always implement safe error handling.
+
+Prefer returning partial results over failing the entire operation.
+
+Log unexpected behaviour.
+
+---
+
+## Expected Output
+
+When implementing tasks you should:
+
+Modify only the required files.
+
+Maintain existing architecture.
+
+Add clear commit messages.
+
+Ensure the application remains stable.

lib/env.ts

@@ -14,6 +14,7 @@ for (const key of requiredEnvs) {
 export const env = {
   appUrl: process.env.NEXT_PUBLIC_APP_URL ?? "http://localhost:3000",
   jobSecret: process.env.JOB_SECRET ?? "",
+  cronSecret: process.env.CRON_SECRET ?? "",
   encryptionKey: process.env.ENCRYPTION_KEY ?? "",
   pleskCredEncKey: process.env.PLESK_CRED_ENC_KEY ?? "",
   stripeSecretKey: process.env.STRIPE_SECRET_KEY ?? "",

lib/plesk/auto-sync.ts

@@ -0,0 +1,232 @@
+import { randomUUID } from "crypto";
+
+import { syncPleskInstance } from "@/lib/plesk/sync";
+
+type SupabaseLike = any;
+
+type AutoSyncInstance = {
+  id: string;
+  agency_id: string;
+  base_url: string;
+  auth_type: "api_key" | "basic";
+  encrypted_secret: string;
+  last_connected_at: string | null;
+  auto_sync_enabled: boolean;
+  auto_sync_frequency_minutes: number | null;
+  next_auto_sync_at: string | null;
+  auto_sync_lock_until: string | null;
+};
+
+type AutoSyncSummary = {
+  instances_considered: number;
+  locks_acquired: number;
+  succeeded: number;
+  failed: number;
+  duration_ms: number;
+};
+
+const MAX_INSTANCES_PER_TICK = 5;
+const MAX_CONCURRENCY = 2;
+const LOCK_LEASE_SECONDS = 15 * 60;
+const INSTANCE_TIMEOUT_MS = 14 * 60 * 1000;
+
+function isDue(instance: AutoSyncInstance, now: number) {
+  if (!instance.next_auto_sync_at) return true;
+  const dueAt = new Date(instance.next_auto_sync_at).getTime();
+  return Number.isFinite(dueAt) && dueAt <= now;
+}
+
+function isUnlocked(instance: AutoSyncInstance, now: number) {
+  if (!instance.auto_sync_lock_until) return true;
+  const lockUntil = new Date(instance.auto_sync_lock_until).getTime();
+  return !Number.isFinite(lockUntil) || lockUntil <= now;
+}
+
+async function insertActionLogBestEffort(
+  supabase: SupabaseLike,
+  payload: Record<string, unknown>,
+) {
+  try {
+    const { error } = await supabase.from("actions_log").insert(payload);
+    if (error) {
+      console.error("[autosync] actions_log insert failed", error.message);
+    }
+  } catch (error) {
+    console.error("[autosync] actions_log insert threw", error);
+  }
+}
+
+async function withTimeout<T>(
+  promise: Promise<T>,
+  timeoutMs: number,
+): Promise<T> {
+  let timeout: ReturnType<typeof setTimeout> | null = null;
+
+  const timeoutPromise = new Promise<never>((_, reject) => {
+    timeout = setTimeout(() => {
+      reject(new Error("Auto-sync timed out"));
+    }, timeoutMs);
+  });
+
+  try {
+    return await Promise.race([promise, timeoutPromise]);
+  } finally {
+    if (timeout) clearTimeout(timeout);
+  }
+}
+
+export async function runAutoSyncTick(
+  supabase: SupabaseLike,
+): Promise<AutoSyncSummary> {
+  const startedAt = Date.now();
+  const now = Date.now();
+
+  const { data: rows, error } = await supabase
+    .from("plesk_instances")
+    .select(
+      "id, agency_id, base_url, auth_type, encrypted_secret, last_connected_at, auto_sync_enabled, auto_sync_frequency_minutes, next_auto_sync_at, auto_sync_lock_until",
+    )
+    .eq("status", "connected")
+    .eq("auto_sync_enabled", true)
+    .order("next_auto_sync_at", { ascending: true, nullsFirst: true })
+    .limit(50);
+
+  if (error) {
+    throw new Error(error.message);
+  }
+
+  const eligible = ((rows ?? []) as AutoSyncInstance[])
+    .filter((instance) => isDue(instance, now) && isUnlocked(instance, now))
+    .slice(0, MAX_INSTANCES_PER_TICK);
+
+  let locksAcquired = 0;
+  let succeeded = 0;
+  let failed = 0;
+
+  const queue = [...eligible];
+
+  async function processInstance(instance: AutoSyncInstance) {
+    const lockToken = randomUUID();
+    const { data: lockAcquired, error: lockError } = await supabase.rpc(
+      "acquire_instance_auto_sync_lock",
+      {
+        p_instance_id: instance.id,
+        p_lock_token: lockToken,
+        p_ttl_seconds: LOCK_LEASE_SECONDS,
+      },
+    );
+
+    if (lockError || !lockAcquired) return;
+    locksAcquired += 1;
+
+    const perInstanceStartedAt = Date.now();
+    const frequencyMinutes = Math.max(
+      instance.auto_sync_frequency_minutes ?? 60,
+      5,
+    );
+
+    await insertActionLogBestEffort(supabase, {
+      agency_id: instance.agency_id,
+      actor_user_id: null,
+      target_type: "plesk_instance",
+      target_id: instance.id,
+      action: "autosync_started",
+      status: "pending",
+      metadata: {
+        instance_id: instance.id,
+        lock_token: lockToken,
+        frequency_minutes: frequencyMinutes,
+      },
+    });
+
+    try {
+      await withTimeout(
+        syncPleskInstance(supabase, instance, null, "autosync"),
+        INSTANCE_TIMEOUT_MS,
+      );
+
+      succeeded += 1;
+
+      await insertActionLogBestEffort(supabase, {
+        agency_id: instance.agency_id,
+        actor_user_id: null,
+        target_type: "plesk_instance",
+        target_id: instance.id,
+        action: "autosync_completed",
+        status: "success",
+        metadata: {
+          instance_id: instance.id,
+          lock_token: lockToken,
+          duration_ms: Date.now() - perInstanceStartedAt,
+        },
+      });
+    } catch (syncError) {
+      failed += 1;
+
+      const errorMessage =
+        syncError instanceof Error
+          ? syncError.message.slice(0, 500)
+          : "autosync_failed";
+
+      await insertActionLogBestEffort(supabase, {
+        agency_id: instance.agency_id,
+        actor_user_id: null,
+        target_type: "plesk_instance",
+        target_id: instance.id,
+        action: "autosync_failed",
+        status: "failed",
+        error_message: errorMessage,
+        metadata: {
+          instance_id: instance.id,
+          lock_token: lockToken,
+          duration_ms: Date.now() - perInstanceStartedAt,
+          error_summary: errorMessage,
+        },
+      });
+    } finally {
+      const nowIso = new Date().toISOString();
+      const nextAutoSyncAtIso = new Date(
+        Date.now() + frequencyMinutes * 60 * 1000,
+      ).toISOString();
+
+      const { error: scheduleError } = await supabase
+        .from("plesk_instances")
+        .update({
+          last_auto_sync_at: nowIso,
+          next_auto_sync_at: nextAutoSyncAtIso,
+          auto_sync_lock_until: null,
+          auto_sync_lock_token: null,
+        })
+        .eq("id", instance.id)
+        .eq("auto_sync_lock_token", lockToken);
+
+      if (scheduleError) {
+        console.error(
+          "[autosync] schedule update failed",
+          scheduleError.message,
+        );
+      }
+    }
+  }
+
+  const workers = Array.from(
+    { length: Math.min(MAX_CONCURRENCY, queue.length) },
+    async () => {
+      while (queue.length > 0) {
+        const instance = queue.shift();
+        if (!instance) break;
+        await processInstance(instance);
+      }
+    },
+  );
+
+  await Promise.all(workers);
+
+  return {
+    instances_considered: eligible.length,
+    locks_acquired: locksAcquired,
+    succeeded,
+    failed,
+    duration_ms: Date.now() - startedAt,
+  };
+}

lib/plesk/health.ts

@@ -0,0 +1,345 @@
+import { randomUUID } from "crypto";
+
+import { testPleskConnection } from "@/lib/plesk/client";
+
+type SupabaseLike = any;
+
+type HealthStatus = "ok" | "degraded" | "down" | "unknown";
+
+type HealthInstance = {
+  id: string;
+  agency_id: string;
+  base_url: string;
+  auth_type: "api_key" | "basic";
+  encrypted_secret: string;
+  health_enabled: boolean;
+  health_check_frequency_minutes: number | null;
+  health_next_check_at: string | null;
+  health_lock_until: string | null;
+};
+
+type HealthCheckResult = {
+  status: Exclude<HealthStatus, "unknown">;
+  latency_ms: number;
+  error_message: string | null;
+};
+
+type RunSingleHealthCheckResult = {
+  checked: boolean;
+  status?: Exclude<HealthStatus, "unknown">;
+  latency_ms?: number;
+  error_message?: string | null;
+};
+
+export type HealthTickSummary = {
+  checked: number;
+  ok: number;
+  degraded: number;
+  failed: number;
+  duration_ms: number;
+};
+
+const MAX_INSTANCES_PER_TICK = 10;
+const MAX_CONCURRENCY = 3;
+const LOCK_LEASE_SECONDS = 5 * 60;
+const HEALTH_TIMEOUT_MS = 15_000;
+const DEGRADED_LATENCY_THRESHOLD_MS = 2_500;
+
+function isDue(instance: HealthInstance, now: number) {
+  if (!instance.health_next_check_at) return true;
+  const dueAt = new Date(instance.health_next_check_at).getTime();
+  return Number.isFinite(dueAt) && dueAt <= now;
+}
+
+function isUnlocked(instance: HealthInstance, now: number) {
+  if (!instance.health_lock_until) return true;
+  const lockUntil = new Date(instance.health_lock_until).getTime();
+  return !Number.isFinite(lockUntil) || lockUntil <= now;
+}
+
+async function insertActionLogBestEffort(
+  supabase: SupabaseLike,
+  payload: Record<string, unknown>,
+) {
+  try {
+    const { error } = await supabase.from("actions_log").insert(payload);
+    if (error) {
+      console.error("[health] actions_log insert failed", error.message);
+    }
+  } catch (error) {
+    console.error("[health] actions_log insert threw", error);
+  }
+}
+
+async function withTimeout<T>(
+  promise: Promise<T>,
+  timeoutMs: number,
+): Promise<T> {
+  let timeout: ReturnType<typeof setTimeout> | null = null;
+
+  const timeoutPromise = new Promise<never>((_, reject) => {
+    timeout = setTimeout(() => {
+      reject(new Error("Health check timed out"));
+    }, timeoutMs);
+  });
+
+  try {
+    return await Promise.race([promise, timeoutPromise]);
+  } finally {
+    if (timeout) clearTimeout(timeout);
+  }
+}
+
+async function checkPleskInstanceHealth(
+  instance: Pick<HealthInstance, "base_url" | "auth_type" | "encrypted_secret">,
+): Promise<HealthCheckResult> {
+  const startedAt = Date.now();
+
+  try {
+    await withTimeout(
+      testPleskConnection({
+        baseUrl: instance.base_url,
+        authType: instance.auth_type,
+        encryptedSecret: instance.encrypted_secret,
+      }),
+      HEALTH_TIMEOUT_MS,
+    );
+
+    const latencyMs = Date.now() - startedAt;
+    const status: "ok" | "degraded" =
+      latencyMs > DEGRADED_LATENCY_THRESHOLD_MS ? "degraded" : "ok";
+
+    return {
+      status,
+      latency_ms: latencyMs,
+      error_message: null,
+    };
+  } catch (error) {
+    return {
+      status: "down",
+      latency_ms: Date.now() - startedAt,
+      error_message:
+        error instanceof Error
+          ? error.message.slice(0, 1000)
+          : "health_check_failed",
+    };
+  }
+}
+
+export async function runInstanceHealthCheck(
+  supabase: SupabaseLike,
+  instance: HealthInstance,
+  input?: {
+    actorUserId?: string | null;
+    force?: boolean;
+    source?: "cron" | "manual";
+  },
+): Promise<RunSingleHealthCheckResult> {
+  const lockToken = randomUUID();
+  const actorUserId = input?.actorUserId ?? null;
+  const source = input?.source ?? "cron";
+
+  const { data: lockAcquired, error: lockError } = await supabase.rpc(
+    "acquire_instance_health_lock",
+    {
+      p_instance_id: instance.id,
+      p_lock_token: lockToken,
+      p_ttl_seconds: LOCK_LEASE_SECONDS,
+      p_force: Boolean(input?.force),
+    },
+  );
+
+  if (lockError || !lockAcquired) {
+    return { checked: false };
+  }
+
+  const startedAt = Date.now();
+  const nowIso = new Date().toISOString();
+  const frequencyMinutes = Math.max(
+    instance.health_check_frequency_minutes ?? 30,
+    5,
+  );
+  const nextCheckAtIso = new Date(
+    Date.now() + frequencyMinutes * 60 * 1000,
+  ).toISOString();
+
+  await insertActionLogBestEffort(supabase, {
+    agency_id: instance.agency_id,
+    actor_user_id: actorUserId,
+    target_type: "plesk_instance",
+    target_id: instance.id,
+    action: "health_check_started",
+    status: "pending",
+    metadata: {
+      instance_id: instance.id,
+      lock_token: lockToken,
+      source,
+    },
+  });
+
+  try {
+    const result = await checkPleskInstanceHealth(instance);
+
+    const updates: Record<string, unknown> = {
+      health_status: result.status,
+      health_last_checked_at: nowIso,
+      health_last_latency_ms: result.latency_ms,
+      health_last_error: result.error_message,
+      health_next_check_at: nextCheckAtIso,
+      health_lock_until: null,
+      health_lock_token: null,
+    };
+
+    if (result.status === "ok") {
+      updates.health_last_ok_at = nowIso;
+    }
+
+    const { error: updateError } = await supabase
+      .from("plesk_instances")
+      .update(updates)
+      .eq("id", instance.id)
+      .eq("health_lock_token", lockToken);
+
+    if (updateError) {
+      throw new Error(updateError.message);
+    }
+
+    const action =
+      result.status === "ok"
+        ? "health_check_ok"
+        : result.status === "degraded"
+          ? "health_check_degraded"
+          : "health_check_failed";
+
+    await insertActionLogBestEffort(supabase, {
+      agency_id: instance.agency_id,
+      actor_user_id: actorUserId,
+      target_type: "plesk_instance",
+      target_id: instance.id,
+      action,
+      status: result.status === "down" ? "failed" : "success",
+      error_message: result.error_message,
+      metadata: {
+        instance_id: instance.id,
+        lock_token: lockToken,
+        source,
+        latency_ms: result.latency_ms,
+        duration_ms: Date.now() - startedAt,
+      },
+    });
+
+    return {
+      checked: true,
+      status: result.status,
+      latency_ms: result.latency_ms,
+      error_message: result.error_message,
+    };
+  } catch (error) {
+    const errorMessage =
+      error instanceof Error
+        ? error.message.slice(0, 1000)
+        : "health_check_failed";
+
+    await supabase
+      .from("plesk_instances")
+      .update({
+        health_status: "down",
+        health_last_checked_at: nowIso,
+        health_last_error: errorMessage,
+        health_next_check_at: nextCheckAtIso,
+      })
+      .eq("id", instance.id);
+
+    await insertActionLogBestEffort(supabase, {
+      agency_id: instance.agency_id,
+      actor_user_id: actorUserId,
+      target_type: "plesk_instance",
+      target_id: instance.id,
+      action: "health_check_failed",
+      status: "failed",
+      error_message: errorMessage,
+      metadata: {
+        instance_id: instance.id,
+        lock_token: lockToken,
+        source,
+        duration_ms: Date.now() - startedAt,
+      },
+    });
+
+    return {
+      checked: true,
+      status: "down",
+      latency_ms: Date.now() - startedAt,
+      error_message: errorMessage,
+    };
+  } finally {
+    await supabase.rpc("release_instance_health_lock", {
+      p_instance_id: instance.id,
+      p_lock_token: lockToken,
+    });
+  }
+}
+
+export async function runHealthCheckTick(
+  supabase: SupabaseLike,
+): Promise<HealthTickSummary> {
+  const startedAt = Date.now();
+  const now = Date.now();
+
+  const { data: rows, error } = await supabase
+    .from("plesk_instances")
+    .select(
+      "id, agency_id, base_url, auth_type, encrypted_secret, health_enabled, health_check_frequency_minutes, health_next_check_at, health_lock_until",
+    )
+    .eq("health_enabled", true)
+    .order("health_next_check_at", { ascending: true, nullsFirst: true })
+    .limit(50);
+
+  if (error) {
+    throw new Error(error.message);
+  }
+
+  const eligible = ((rows ?? []) as HealthInstance[])
+    .filter((instance) => isDue(instance, now) && isUnlocked(instance, now))
+    .slice(0, MAX_INSTANCES_PER_TICK);
+
+  let checked = 0;
+  let ok = 0;
+  let degraded = 0;
+  let failed = 0;
+
+  const queue = [...eligible];
+
+  const workers = Array.from(
+    { length: Math.min(MAX_CONCURRENCY, queue.length) },
+    async () => {
+      while (queue.length > 0) {
+        const instance = queue.shift();
+        if (!instance) break;
+
+        const result = await runInstanceHealthCheck(supabase, instance, {
+          actorUserId: null,
+          force: false,
+          source: "cron",
+        });
+
+        if (!result.checked || !result.status) continue;
+
+        checked += 1;
+        if (result.status === "ok") ok += 1;
+        else if (result.status === "degraded") degraded += 1;
+        else failed += 1;
+      }
+    },
+  );
+
+  await Promise.all(workers);
+
+  return {
+    checked,
+    ok,
+    degraded,
+    failed,
+    duration_ms: Date.now() - startedAt,
+  };
+}

lib/types.ts

@@ -83,6 +83,22 @@ export type Database = {
           last_sync_error: string | null;
           last_sync_subscriptions: number;
           last_sync_domains: number;
+          auto_sync_enabled: boolean;
+          auto_sync_frequency_minutes: number;
+          last_auto_sync_at: string | null;
+          next_auto_sync_at: string | null;
+          auto_sync_lock_until: string | null;
+          auto_sync_lock_token: string | null;
+          health_enabled: boolean;
+          health_status: "ok" | "degraded" | "down" | "unknown";
+          health_last_checked_at: string | null;
+          health_last_ok_at: string | null;
+          health_last_error: string | null;
+          health_last_latency_ms: number | null;
+          health_check_frequency_minutes: number;
+          health_next_check_at: string | null;
+          health_lock_until: string | null;
+          health_lock_token: string | null;
           created_at: string;
         };
         Insert: {
@@ -101,6 +117,22 @@ export type Database = {
           last_sync_error?: string | null;
           last_sync_subscriptions?: number;
           last_sync_domains?: number;
+          auto_sync_enabled?: boolean;
+          auto_sync_frequency_minutes?: number;
+          last_auto_sync_at?: string | null;
+          next_auto_sync_at?: string | null;
+          auto_sync_lock_until?: string | null;
+          auto_sync_lock_token?: string | null;
+          health_enabled?: boolean;
+          health_status?: "ok" | "degraded" | "down" | "unknown";
+          health_last_checked_at?: string | null;
+          health_last_ok_at?: string | null;
+          health_last_error?: string | null;
+          health_last_latency_ms?: number | null;
+          health_check_frequency_minutes?: number;
+          health_next_check_at?: string | null;
+          health_lock_until?: string | null;
+          health_lock_token?: string | null;
           created_at?: string;
         };
         Update: {
@@ -119,6 +151,22 @@ export type Database = {
           last_sync_error?: string | null;
           last_sync_subscriptions?: number;
           last_sync_domains?: number;
+          auto_sync_enabled?: boolean;
+          auto_sync_frequency_minutes?: number;
+          last_auto_sync_at?: string | null;
+          next_auto_sync_at?: string | null;
+          auto_sync_lock_until?: string | null;
+          auto_sync_lock_token?: string | null;
+          health_enabled?: boolean;
+          health_status?: "ok" | "degraded" | "down" | "unknown";
+          health_last_checked_at?: string | null;
+          health_last_ok_at?: string | null;
+          health_last_error?: string | null;
+          health_last_latency_ms?: number | null;
+          health_check_frequency_minutes?: number;
+          health_next_check_at?: string | null;
+          health_lock_until?: string | null;
+          health_lock_token?: string | null;
           created_at?: string;
         };
       };

supabase/migrations/CL38_instance_health_monitoring.sql

@@ -0,0 +1,78 @@
+-- CL8: instance health monitoring fields + lock helpers
+
+alter table public.plesk_instances
+  add column if not exists health_enabled boolean not null default true,
+  add column if not exists health_status text not null default 'unknown',
+  add column if not exists health_last_checked_at timestamptz,
+  add column if not exists health_last_ok_at timestamptz,
+  add column if not exists health_last_error text,
+  add column if not exists health_last_latency_ms integer,
+  add column if not exists health_check_frequency_minutes integer not null default 30,
+  add column if not exists health_next_check_at timestamptz,
+  add column if not exists health_lock_until timestamptz,
+  add column if not exists health_lock_token text;
+
+alter table public.plesk_instances
+  drop constraint if exists plesk_instances_health_status_check;
+
+alter table public.plesk_instances
+  add constraint plesk_instances_health_status_check
+  check (health_status in ('ok', 'degraded', 'down', 'unknown'));
+
+alter table public.plesk_instances
+  drop constraint if exists plesk_instances_health_check_frequency_minutes_check;
+
+alter table public.plesk_instances
+  add constraint plesk_instances_health_check_frequency_minutes_check
+  check (health_check_frequency_minutes between 5 and 10080);
+
+create index if not exists idx_plesk_instances_health_due
+  on public.plesk_instances (health_enabled, health_next_check_at);
+
+create or replace function public.acquire_instance_health_lock(
+  p_instance_id uuid,
+  p_lock_token text,
+  p_ttl_seconds integer default 300,
+  p_force boolean default false
+)
+returns boolean
+language plpgsql
+security definer
+set search_path = public
+as $$
+declare
+  v_acquired boolean := false;
+begin
+  update public.plesk_instances
+  set
+    health_lock_until = now() + make_interval(secs => p_ttl_seconds),
+    health_lock_token = p_lock_token
+  where id = p_instance_id
+    and health_enabled = true
+    and (
+      p_force = true
+      or health_next_check_at is null
+      or health_next_check_at <= now()
+    )
+    and (health_lock_until is null or health_lock_until < now());
+
+  get diagnostics v_acquired = row_count;
+  return v_acquired;
+end;
+$$;
+
+create or replace function public.release_instance_health_lock(
+  p_instance_id uuid,
+  p_lock_token text
+)
+returns void
+language sql
+security definer
+set search_path = public
+as $$
+  update public.plesk_instances
+  set health_lock_until = null,
+      health_lock_token = null
+  where id = p_instance_id
+    and health_lock_token = p_lock_token;
+$$;

supabase/migrations/CL6_auto_sync_worker.sql

@@ -0,0 +1,62 @@
+-- CL6: auto-sync worker scheduling fields + per-instance lock helpers
+
+alter table public.plesk_instances
+  add column if not exists auto_sync_enabled boolean not null default false,
+  add column if not exists auto_sync_frequency_minutes integer not null default 60,
+  add column if not exists last_auto_sync_at timestamptz,
+  add column if not exists next_auto_sync_at timestamptz,
+  add column if not exists auto_sync_lock_until timestamptz,
+  add column if not exists auto_sync_lock_token text;
+
+alter table public.plesk_instances
+  drop constraint if exists plesk_instances_auto_sync_frequency_minutes_check;
+
+alter table public.plesk_instances
+  add constraint plesk_instances_auto_sync_frequency_minutes_check
+  check (auto_sync_frequency_minutes between 5 and 10080);
+
+create index if not exists idx_plesk_instances_auto_sync_due
+  on public.plesk_instances (auto_sync_enabled, next_auto_sync_at);
+
+create or replace function public.acquire_instance_auto_sync_lock(
+  p_instance_id uuid,
+  p_lock_token text,
+  p_ttl_seconds integer default 900
+)
+returns boolean
+language plpgsql
+security definer
+set search_path = public
+as $$
+declare
+  v_acquired boolean := false;
+begin
+  update public.plesk_instances
+  set
+    auto_sync_lock_until = now() + make_interval(secs => p_ttl_seconds),
+    auto_sync_lock_token = p_lock_token
+  where id = p_instance_id
+    and auto_sync_enabled = true
+    and (next_auto_sync_at is null or next_auto_sync_at <= now())
+    and (auto_sync_lock_until is null or auto_sync_lock_until < now());
+
+  get diagnostics v_acquired = row_count;
+  return v_acquired;
+end;
+$$;
+
+create or replace function public.release_instance_auto_sync_lock(
+  p_instance_id uuid,
+  p_lock_token text
+)
+returns void
+language sql
+security definer
+set search_path = public
+as $$
+  update public.plesk_instances
+  set auto_sync_lock_until = null,
+      auto_sync_lock_token = null
+  where id = p_instance_id
+    and auto_sync_lock_token = p_lock_token;
+$$;