fix(ui): re-sync settings/thread forms on loaded record

apps/next/src/components/threads/thread-workspace-form.tsx

@@ -1,6 +1,6 @@
 'use client';
 
-import { useState } from 'react';
+import { useEffect, useRef, useState } from 'react';
 import { useRouter } from 'next/navigation';
 import { useMutation, useQuery } from 'convex/react';
 import { MessageSquarePlus } from 'lucide-react';
@@ -34,6 +34,7 @@ const runtimeLabels: Record<RuntimeName, string> = {
 };
 
 type AgentSettings = {
+  _id?: Id<'spoonAgentSettings'>;
   defaultBaseBranch?: string;
   runtime?: RuntimeName | 'openai_direct';
   agentModel: string;
@@ -82,6 +83,33 @@ export const ThreadWorkspaceForm = ({
   );
   const [runtime, setRuntime] = useState<RuntimeName | undefined>();
   const [submitting, setSubmitting] = useState(false);
+
+  // The parent gates rendering on a different query than `agentSettings`, so
+  // this form can mount before the agent settings record resolves. Re-seed the
+  // settings-derived fields once the real record arrives (and again if the
+  // parent swaps to a different spoon) so the form reflects saved config rather
+  // than the initial defaults.
+  const hydratedSpoonId = useRef<Id<'spoons'> | null>(null);
+  useEffect(() => {
+    if (!agentSettings || hydratedSpoonId.current === spoon._id) return;
+    const timeout = window.setTimeout(() => {
+      setBaseBranch(
+        agentSettings.defaultBaseBranch ??
+          spoon.forkDefaultBranch ??
+          spoon.upstreamDefaultBranch,
+      );
+      setMaterializeEnvFile(agentSettings.materializeEnvFileByDefault ?? false);
+      setEnvFilePath(
+        agentSettings.envFilePath === 'custom'
+          ? (agentSettings.customEnvFilePath ?? '.env.local')
+          : (agentSettings.envFilePath ?? '.env.local'),
+      );
+      setAiProviderProfileId(agentSettings.aiProviderProfileId ?? '__settings');
+      hydratedSpoonId.current = spoon._id;
+    }, 0);
+    return () => window.clearTimeout(timeout);
+  }, [agentSettings, spoon]);
+
   const effectiveProviderProfileId =
     aiProviderProfileId === '__settings'
       ? (agentSettings?.aiProviderProfileId ?? defaultProfile?._id)