add cline docs

AI-START-HERE.md

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+# AI Start Here
+
+Before making changes, read these files in order:
+
+1. docs/ai-project-context.md
+2. docs/system-architecture.md
+3. docs/next-steps.md
+4. docs/handovers/latest.md (or the newest dated handover file)
+
+## Project
+
+Plesk Agency Portal
+
+## Rules
+
+- Make minimal safe changes
+- Do not weaken Supabase RLS
+- Preserve working deployment pipeline
+- Prefer extending existing patterns over rewrites
+- Treat `master` as production-ready
+
+## Current Focus
+
+- Fix Supabase HTTPS/public URL
+- Validate auth flow
+- Keep CI/CD stable
+
+## Deployment Summary
+
+- Jenkins builds Docker image
+- Image transferred via `docker save -> scp -> docker load`
+- App runs on `/opt/plesk-agency-portal`
+- Public app URL: `https://portal.rdbcloud.co.uk`
+- supabase URL: `https://supabase.rdbcloud.co.uk`
+
+## Notes
+
+Use the docs folder as source of truth for current state and handover history.
+
+## When updating the project
+
+- update docs/ai-project-context.md for current state
+- add a new file in docs/handovers/
+- update docs/next-steps.md
+- keep this file short