fix(custom-widgets): address v2 merge review

apps/workshop/tests/workshop-contracts.mjs

@@ -0,0 +1,33 @@
+import { access, readFile } from "node:fs/promises";
+import { resolve } from "node:path";
+
+const read = (path) => readFile(resolve(path), "utf8");
+
+const packageJson = JSON.parse(await read("packages/workshop/package.json"));
+const clientExport = packageJson.exports?.["./client"];
+if (typeof clientExport !== "string") throw new Error("Workshop client export is missing");
+await access(resolve("packages/workshop", clientExport));
+
+const hook = await read("apps/workshop/pb_hooks/workshop.pb.js");
+if (!hook.includes("onBootstrap") || !hook.includes("users.oauth2.providers = configured")) {
+  throw new Error("Workshop OAuth settings must be synchronized at every bootstrap");
+}
+if (hook.includes('findAllRecords("users")') || !hook.includes('findRecordsByFilter("users"')) {
+  throw new Error("Workshop report notifications must use a filtered, bounded administrator query");
+}
+
+const migration = await read("apps/workshop/pb_migrations/1784240000_workshop_widgets.js");
+for (const required of [
+  "workshop_migration_state",
+  "addedUserFields",
+  "state.rateLimits.enabled",
+  "users.passwordAuth = state.users.passwordAuth",
+  "users.oauth2 = state.users.oauth2",
+]) {
+  if (!migration.includes(required)) throw new Error(`Workshop rollback is missing state restoration: ${required}`);
+}
+
+const workflow = await read(".github/workflows/workshop.yml");
+if (/\n\s+paths:/u.test(workflow)) throw new Error("Workshop workflow must not filter out Docker build inputs");
+
+console.log("Workshop static contracts passed");