fix: move defaultCreateValues to separate file to fix HMR

AgentConfigForm.tsx exported both React components and a plain
object constant (defaultCreateValues), which broke Vite Fast Refresh.
Moved the constant to agent-config-defaults.ts so the component
module only exports React components.

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

ui/src/components/agent-config-defaults.ts

@@ -0,0 +1,22 @@
+import type { CreateConfigValues } from "@paperclip/adapter-utils";
+
+export const defaultCreateValues: CreateConfigValues = {
+  adapterType: "claude_local",
+  cwd: "",
+  promptTemplate: "",
+  model: "",
+  thinkingEffort: "",
+  dangerouslySkipPermissions: false,
+  search: false,
+  dangerouslyBypassSandbox: false,
+  command: "",
+  args: "",
+  extraArgs: "",
+  envVars: "",
+  envBindings: {},
+  url: "",
+  bootstrapPrompt: "",
+  maxTurnsPerRun: 80,
+  heartbeatEnabled: false,
+  intervalSec: 300,
+};