feat: núcleo de tickets com Convex (CRUD, play, comentários com anexos) + auth placeholder; docs em AGENTS.md; toasts e updates otimistas; mapeadores Zod; refinos PT-BR e layout do painel de detalhes

web/convex/convex.config.ts

@@ -0,0 +1,9 @@
+import { defineApp } from "convex/server";
+
+const app = defineApp();
+
+// You can install Convex Components here in the future, e.g. rate limiter, workflows, etc.
+// app.use(componentConfig)
+
+export default app;
+