feat(home): add AI chat interface with OpenCode integration

src/lib/utils/uuid.ts

@@ -0,0 +1,7 @@
+export function generateUUID(): string {
+  return 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g, function (c) {
+    const r = (Math.random() * 16) | 0
+    const v = c === 'x' ? r : (r & 0x3) | 0x8
+    return v.toString(16)
+  })
+}