refactor(docs): consolidate and cleanup documentation

- Delete 9 deprecated/obsolete docs (~6,300 lines removed)
- Move test PDFs to tests/fixtures/ocr-samples/
- Create docs/DEPLOYMENT.md as principal guide
- Create tests/ocr-validation/README.md
- Update all refs for ultrathin monolith architecture
- Update OCR tests to use relative paths

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

docs/telegram/testing/MANUAL_TESTING_CHECKLIST.md

@@ -6,29 +6,32 @@ This checklist guides you through manual testing of the Telegram bot functionali
 
 Before starting manual tests:
 
-- [ ] Backend API is running (`http://localhost:8001`)
-- [ ] SSH tunnel to Oracle DB is active
-- [ ] Telegram bot is running (`python -m app.main`)
-- [ ] TELEGRAM_BOT_TOKEN is configured in `.env`
-- [ ] CLAUDE_API_KEY is configured in `.env` (if using real Claude SDK)
-- [ ] SQLite database is initialized (`data/telegram_bot.db` exists)
+- [ ] Backend API is running (`http://localhost:8000` or `8001`)
+- [ ] SSH tunnel to Oracle DB is active (Linux dev only)
+- [ ] `MODULE_TELEGRAM_ENABLED=true` in `.env`
+- [ ] `TELEGRAM_BOT_TOKEN` is configured in `.env`
+- [ ] SQLite database is initialized (auto-created on first run)
+
+> **Note:** In the **ultrathin monolith** architecture, the Telegram bot runs as a background task
+> within the unified backend. There's no separate bot process to start.
 
 ## 📱 Test Environment Setup
 
 ### Start Services
 
 ```bash
-# Terminal 1: Start backend API (from roa2web/)
-cd backend
-source venv/bin/activate
-uvicorn app.main:app --reload --port 8001
+# From project root - starts everything (SSH tunnel + backend + frontend)
+./start-prod.sh
 
-# Terminal 2: Start Telegram bot
-cd backend/modules/telegram
-source venv/bin/activate
-python -m app.main
+# Or for testing mode:
+./start-test.sh
+
+# Check status
+./status.sh
 ```
 
+The bot starts automatically with the backend when `MODULE_TELEGRAM_ENABLED=true`.
+
 ### Test User Setup
 
 - [ ] Create test Oracle user account in Oracle database (if needed)