fix: update Odoo client for v19 compatibility

- Use persistent httpx client to maintain session cookies
- Update endpoint path to /web/dataset/call_kw/{model}/{method}
- Handle auth response as dict (uid extraction)
- Remove kanban_state field (doesn't exist in Odoo 19)
- Add close() method for graceful shutdown

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

backend/main.py

@@ -73,6 +73,7 @@ async def lifespan(app: FastAPI):
     task = asyncio.create_task(refresh_loop())
     yield
     task.cancel()
+    await odoo_client.close()
 
 
 app = FastAPI(title="TV Dashboard API", lifespan=lifespan)

backend/modules/odoo_client.py

@@ -10,6 +10,16 @@ class OdooClient:
         self.username = username
         self.password = password
         self.uid: int | None = None
+        self._client: httpx.AsyncClient | None = None
+
+    async def _get_client(self) -> httpx.AsyncClient:
+        if self._client is None or self._client.is_closed:
+            self._client = httpx.AsyncClient(timeout=30.0)
+        return self._client
+
+    async def close(self) -> None:
+        if self._client and not self._client.is_closed:
+            await self._client.aclose()
 
     async def _jsonrpc(self, endpoint: str, params: dict[str, Any]) -> Any:
         payload = {
@@ -18,11 +28,10 @@ class OdooClient:
             "params": params,
             "id": 1,
         }
-        async with httpx.AsyncClient() as client:
+        client = await self._get_client()
         response = await client.post(
             f"{self.url}{endpoint}",
             json=payload,
-                timeout=30.0,
         )
         response.raise_for_status()
         result = response.json()
@@ -31,11 +40,15 @@ class OdooClient:
         return result.get("result")
 
     async def authenticate(self) -> int:
-        self.uid = await self._jsonrpc("/web/session/authenticate", {
+        result = await self._jsonrpc("/web/session/authenticate", {
             "db": self.database,
             "login": self.username,
             "password": self.password,
         })
+        if isinstance(result, dict):
+            self.uid = result.get("uid")
+        else:
+            self.uid = result
         return self.uid
 
     async def search_read(
@@ -46,7 +59,7 @@ class OdooClient:
         limit: int = 0,
         order: str = "",
     ) -> list[dict[str, Any]]:
-        return await self._jsonrpc("/web/dataset/call_kw", {
+        return await self._jsonrpc(f"/web/dataset/call_kw/{model}/search_read", {
             "model": model,
             "method": "search_read",
             "args": [domain or []],
@@ -73,7 +86,7 @@ class OdooClient:
             domain=domain,
             fields=[
                 "name", "project_id", "stage_id", "user_ids",
-                "priority", "date_deadline", "kanban_state",
+                "priority", "date_deadline",
             ],
         )