implemented teams integration

src/database/client.py

@@ -874,6 +874,52 @@ class DatabaseClient:
         logger.info(f"Deleted Telegram account for user: {user_id}")
         return True
 
+    # ==================== TEAMS ACCOUNTS ====================
+
+    async def get_teams_account(self, user_id: UUID) -> Optional['TeamsAccount']:
+        """Get Teams account for user."""
+        from src.database.models import TeamsAccount
+        result = await asyncio.to_thread(
+            lambda: self.client.table("teams_accounts").select("*")
+            .eq("user_id", str(user_id)).eq("is_active", True).execute()
+        )
+        if result.data:
+            return TeamsAccount(**result.data[0])
+        return None
+
+    async def save_teams_account(self, account: 'TeamsAccount') -> 'TeamsAccount':
+        """Create or update a Teams account connection."""
+        from src.database.models import TeamsAccount
+        data = account.model_dump(exclude={'id', 'created_at', 'updated_at'}, exclude_none=True)
+        data['user_id'] = str(data['user_id'])
+
+        existing = await asyncio.to_thread(
+            lambda: self.client.table("teams_accounts").select("id")
+            .eq("user_id", str(account.user_id)).execute()
+        )
+
+        if existing.data:
+            result = await asyncio.to_thread(
+                lambda: self.client.table("teams_accounts").update(data)
+                .eq("user_id", str(account.user_id)).execute()
+            )
+        else:
+            result = await asyncio.to_thread(
+                lambda: self.client.table("teams_accounts").insert(data).execute()
+            )
+
+        logger.info(f"Saved Teams account for user: {account.user_id}")
+        return TeamsAccount(**result.data[0])
+
+    async def delete_teams_account(self, user_id: UUID) -> bool:
+        """Delete Teams account connection for user."""
+        await asyncio.to_thread(
+            lambda: self.client.table("teams_accounts").delete()
+            .eq("user_id", str(user_id)).execute()
+        )
+        logger.info(f"Deleted Teams account for user: {user_id}")
+        return True
+
     # ==================== USERS ====================
 
     async def get_user(self, user_id: UUID) -> Optional[User]: