feat: add manual export provider

PROJECT_STATE.md

@@ -6,11 +6,11 @@ ChatGPT MCP Server
 
 ## Status
 
-Planning complete. Phase 0 complete. Phase 1 complete. Phase 2 complete. Phase 3 complete. Phase 4 complete. Task 5.1 complete. Task 5.2 complete. Task 5.3 complete. Task 5.4 complete. Task 5.5 complete. Phase 6 complete. Phase 7 complete.
+Planning complete. Phase 0 complete. Phase 1 complete. Phase 2 complete. Phase 3 complete. Phase 4 complete. Task 5.1 complete. Task 5.2 complete. Task 5.3 complete. Task 5.4 complete. Task 5.5 complete. Phase 6 complete. Phase 7 complete. Phase 8 complete (Task 8.0 — Manual Export Provider).
 
 ## Current Phase
 
-All planned phases complete. Provider abstraction (Phase 6) and all tests (Phase 7) finished.
+All planned phases complete. Provider abstraction (Phase 6), integration tests (Phase 7), and manual export provider (Phase 8) finished.
 
 ## Completed Tasks
 
@@ -118,6 +118,24 @@ Project-local Claude Code discovery configured:
 
   - All 579 tests pass across 20 test files with zero regressions
   - `npm start` → tools/list shows same 5 tools with unchanged schemas
+
+- Task 8.0 — Implement ReviewRequest and Manual Export Provider ✅
+
+  **Provider implementation:**
+  - `src/providers/manual-export.js` — Zero-API-cost provider that wraps pre-built prompts in copy/paste-ready format
+  - Returns `{ content: string }` via `send(reviewRequest, config)`
+  - Uses `https://chatgpt.com` (never `https://chat.openai.com`)
+  - Detects tool name from input fields for metadata
+  - Warns on prompts over 30k characters
+  - Preserves unicode, markdown, code blocks, and special characters exactly
+
+  **Factory integration:**
+  - `"manual"` added to SUPPORTED_PROVIDERS whitelist in `src/providers/factory.js`
+  - `CHATGPT_MCP_PROVIDER=manual` switches all tool handlers to manual export mode
+  - Defaults to `"openai"` when not set — OpenAI behaviour unchanged
+
+  **Tests:** 56 new tests in `test/providers/manual-export.test.js` + 9 new in `test/providers/factory.test.js`
+  - Total: 644 passing tests across 21 test files, zero regressions
 - `.claude/` added to `.gitignore` (no machine-specific paths committed)
 - README.md updated with Setup, MCP Tools, and Running sections
 - MCP config snippet uses `"command": "npm"`, `"args": ["start"]` — no absolute paths
@@ -192,4 +210,4 @@ All tests rewritten and verified:
 
 ## Next Pending
 
-No pending tasks. MVP is complete. Future work roadmap: additional provider implementations (Ollama, Anthropic), streaming responses, response caching, structured output parsing.
+No pending tasks. MVP is complete. Future work roadmap: Ollama provider implementation, Anthropic provider, streaming responses, response caching, structured output parsing.