feat(session): query enabled sources before providers (#85)

UserSessionManager now queries the user_sources table for enabled
sources before calling any provider. Providers receive the per-user
JSON config directly instead of querying the DB themselves, removing
their db dependency and eliminating redundant round-trips.

Co-authored-by: Ona <no-reply@ona.com>

apps/aelis-backend/src/admin/http.ts

@@ -51,7 +51,6 @@ async function handleUpdateProviderConfig(c: Context<Env>) {
 	}
 
 	const sessionManager = c.get("sessionManager")
-	const db = c.get("db")
 
 	let body: unknown
 	try {
@@ -68,7 +67,6 @@ async function handleUpdateProviderConfig(c: Context<Env>) {
 			}
 
 			const updated = new WeatherSourceProvider({
-				db,
 				credentials: parsed.credentials,
 			})