fix telegram

deploy-package-20260223-151231/backend/data/README.md

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+# Backend Runtime Data
+
+This directory contains runtime data generated by the unified backend.
+
+## Directory Structure
+
+```
+data/
+├── cache/              # Reports module cache (hybrid L1+L2)
+│   └── *.db           # SQLite L2 cache database
+├── receipts/          # Data Entry module data
+│   ├── *.db          # SQLite receipts database
+│   └── uploads/      # User-uploaded files (receipts, attachments)
+└── telegram/         # Telegram bot data
+    └── *.db          # SQLite bot auth/session database
+```
+
+## Git Behavior
+
+- **Ignored**: All `*.db` files and `uploads/` contents
+- **Committed**: Only `.gitkeep` files to preserve directory structure
+
+## Environment-Specific Databases
+
+Different environments use separate databases:
+
+- **Development** (`.env.prod`):
+  - Cache: `roa2web_cache.db`
+  - Receipts: `receipts_dev.db`
+  - Telegram: `telegram.db`
+
+- **Test** (`.env.test`):
+  - Cache: `roa2web_cache_test.db`
+  - Receipts: `receipts_test.db`
+  - Telegram: `telegram_test.db`
+
+- **Production** (`.env.prod`):
+  - Cache: `roa2web_cache_prod.db`
+  - Receipts: `receipts_prod.db`
+  - Telegram: `telegram_prod.db`
+
+## Auto-Created
+
+All databases and directories are created automatically on first run.
+No manual setup required.