feat: Integrate Telegram bot with polling for owner commands

Co-authored-by: aider (gemini/gemini-2.5-pro) <aider@aider.chat>

app/config.py

@@ -25,6 +25,8 @@ class Settings:
     chunked_uploads_enabled: bool = False
     chunk_size_mb: int = 95
     timezone: str = "UTC"
+    telegram_bot_api_key: str = ""
+    telegram_bot_owner_id: str = ""
 
 def _hash_password(pw: str) -> str:
     """Return PBKDF2-SHA256 hash of a password."""
@@ -74,6 +76,8 @@ def load_settings() -> Settings:
     except ValueError:
         chunk_size_mb = 95
     timezone = os.getenv("TIMEZONE", "UTC")
+    telegram_bot_api_key = os.getenv("TELEGRAM_BOT_API_KEY", "")
+    telegram_bot_owner_id = os.getenv("TELEGRAM_BOT_OWNER_ID", "")
     return Settings(
         admin_password=admin_password,
         max_concurrent=maxc,
@@ -85,4 +89,6 @@ def load_settings() -> Settings:
         chunked_uploads_enabled=chunked_uploads_enabled,
         chunk_size_mb=chunk_size_mb,
         timezone=timezone,
+        telegram_bot_api_key=telegram_bot_api_key,
+        telegram_bot_owner_id=telegram_bot_owner_id,
     )