debug: add logging to auth /me endpoint to diagnose login loop

apps/api/src/api/auth.py

@@ -164,20 +164,30 @@ async def me(
     session_cookie: str | None = Cookie(default=None, alias="session"),
     session: AsyncSession = Depends(get_db_session),
 ) -> dict[str, Any]:
+    logger.info("Auth /me called, cookie present: %s", bool(session_cookie))
+    
     if not session_cookie:
+        logger.warning("Auth /me: missing session cookie")
         raise HTTPException(status_code=status.HTTP_401_UNAUTHORIZED, detail="missing session")
 
     settings = Settings()
+    logger.info("Auth /me: cookie_domain=%s, cookie_secure=%s, cookie_samesite=%s", 
+                settings.cookie_domain, settings.cookie_secure, settings.cookie_samesite)
+    
     try:
         payload = decode_session_cookie(settings=settings, cookie_value=session_cookie)
         user_id = payload["user_id"]
+        logger.info("Auth /me: decoded session for user_id=%s", user_id)
     except ValueError as exc:
+        logger.warning("Auth /me: invalid session: %s", exc)
         raise HTTPException(status_code=status.HTTP_401_UNAUTHORIZED, detail=str(exc))
 
     user = await session.get(User, user_id)
     if user is None:
+        logger.warning("Auth /me: user not found for id=%s", user_id)
         raise HTTPException(status_code=status.HTTP_401_UNAUTHORIZED, detail="user not found")
 
+    logger.info("Auth /me: success for user=%s", user.email)
     return {
         "user": {
             "id": str(user.id),

apps/api/src/api/user_config.py

@@ -1,6 +1,9 @@
+import logging
 import uuid
 
 from fastapi import APIRouter, Depends, HTTPException, status
+
+logger = logging.getLogger(__name__)
 from pydantic import BaseModel, ConfigDict
 from sqlalchemy import select
 from sqlalchemy.ext.asyncio import AsyncSession
@@ -108,8 +111,10 @@ async def update_user_config(
 
     # Merge updates
     update_data = data.model_dump(exclude_unset=True, exclude_none=True)
+    logger.info("Updating user config for user %s: %s", user_id, update_data)
     config.config.update(update_data)
 
     await session.commit()
     await session.refresh(config)
+    logger.info("Updated config: %s", config.config)
     return UserConfigResponse.model_validate(config.config)

apps/web/src/pages/settings.tsx

@@ -50,7 +50,9 @@ export const SettingsPage = () => {
         git_user_name: config.git_user_name ?? undefined,
         git_user_email: config.git_user_email ?? undefined,
       };
+      console.log("Sending update:", update);
       const updated = await updateUserConfig(update);
+      console.log("Received response:", updated);
       setConfig(updated);
       setSaveStatus("saved");