Fix set-active endpoint (PUT /users/:id/active) + add invite email

app/main.py

@@ -203,14 +203,25 @@ async def cloudron_set_group(user_id: str) -> None:
 
 async def cloudron_set_active(user_id: str, active: bool) -> None:
     async with httpx.AsyncClient() as client:
-        r = await client.post(
-            f"{CLOUDRON_API}/api/v1/users/{user_id}",
+        r = await client.put(
+            f"{CLOUDRON_API}/api/v1/users/{user_id}/active",
             headers=cloudron_headers(),
             json={"active": active},
         )
         r.raise_for_status()
 
 
+async def cloudron_send_invite(user_id: str, email: str) -> None:
+    """Send the account-setup invite email to the member."""
+    async with httpx.AsyncClient() as client:
+        r = await client.post(
+            f"{CLOUDRON_API}/api/v1/users/{user_id}/send_invite_email",
+            headers=cloudron_headers(),
+            json={"email": email},
+        )
+        r.raise_for_status()
+
+
 async def litellm_create_key(email: str, budget: float) -> str:
     """Create a LiteLLM virtual key for a member with a budget cap."""
     async with httpx.AsyncClient() as client:
@@ -438,6 +449,7 @@ async def oauth_callback(request: Request):
     await cloudron_set_active(user_id, True)
     key_token = await litellm_create_key(email, MEMBER_BUDGET)
     store_member(email, key_token, user_id)
+    await cloudron_send_invite(user_id, email)
 
     logger.info("Provisioned member %s (user_id=%s)", email, user_id)