merge upstream/dev into feat/migrate-electric-to-zero

Resolve 8 conflicts:
- Accept upstream deletion of 3 composio_*_connector.py (unified Google connectors)
- Accept our deletion of ElectricProvider.tsx, use-connectors-electric.ts,
  use-messages-electric.ts (replaced by Zero equivalents)
- Keep both new deps in package.json (@rocicorp/zero + @slate-serializers/html)
- Regenerate pnpm-lock.yaml

surfsense_backend/app/db.py

@@ -63,6 +63,16 @@ class DocumentType(StrEnum):
     COMPOSIO_GOOGLE_CALENDAR_CONNECTOR = "COMPOSIO_GOOGLE_CALENDAR_CONNECTOR"
 
 
+# Native Google document types → their legacy Composio equivalents.
+# Old documents may still carry the Composio type until they are re-indexed;
+# search, browse, and indexing must transparently handle both.
+NATIVE_TO_LEGACY_DOCTYPE: dict[str, str] = {
+    "GOOGLE_DRIVE_FILE": "COMPOSIO_GOOGLE_DRIVE_CONNECTOR",
+    "GOOGLE_GMAIL_CONNECTOR": "COMPOSIO_GMAIL_CONNECTOR",
+    "GOOGLE_CALENDAR_CONNECTOR": "COMPOSIO_GOOGLE_CALENDAR_CONNECTOR",
+}
+
+
 class SearchSourceConnectorType(StrEnum):
     SERPER_API = "SERPER_API"  # NOT IMPLEMENTED YET : DON'T REMEMBER WHY : MOST PROBABLY BECAUSE WE NEED TO CRAWL THE RESULTS RETURNED BY IT
     TAVILY_API = "TAVILY_API"