feat(github): index connections by installation + status mutation

packages/backend/convex/github.ts

@@ -138,6 +138,32 @@ export const upsertConnectionForUser = internalMutation({
   },
 });
 
+export const setConnectionStatusByInstallation = internalMutation({
+  args: {
+    installationId: v.string(),
+    status: v.union(
+      v.literal('active'),
+      v.literal('needs_reauth'),
+      v.literal('revoked'),
+    ),
+  },
+  handler: async (ctx, { installationId, status }) => {
+    const connections = await ctx.db
+      .query('gitConnections')
+      .withIndex('by_installation', (q) =>
+        q.eq('installationId', installationId),
+      )
+      .collect();
+
+    const now = Date.now();
+    for (const connection of connections) {
+      await ctx.db.patch(connection._id, { status, updatedAt: now });
+    }
+
+    return { updated: connections.length };
+  },
+});
+
 export const createForkSpoonRecord = internalMutation({
   args: {
     ownerId: v.id('users'),

packages/backend/convex/schema.ts

@@ -53,7 +53,8 @@ const applicationTables = {
   })
     .index('by_user', ['userId'])
     .index('by_user_provider', ['userId', 'provider'])
-    .index('by_status', ['status']),
+    .index('by_status', ['status'])
+    .index('by_installation', ['installationId']),
   spoons: defineTable({
     ownerId: v.id('users'),
     name: v.string(),