ci: add pull request quality gates

Co-Authored-By: gpt-5.6-terra <noreply@openai.com>

test/tools/jsonBody.test.ts

@@ -8,7 +8,7 @@ import { jsonBody } from "../../src/webapi/middleware/jsonBody.js";
 
 async function request(
   url: string,
-  opts: { method?: string; body?: unknown; contentType?: string } = {}
+  opts: { method?: string; body?: unknown; contentType?: string } = {},
 ): Promise<{ status: number; body: unknown }> {
   const method = opts.method ?? "POST";
   const bodyStr =
@@ -21,18 +21,19 @@ async function request(
   const res = await fetch(url, { method, headers, body: bodyStr });
   const text = await res.text();
   let parsed: unknown;
-  try { parsed = JSON.parse(text); } catch { parsed = text; }
+  try {
+    parsed = JSON.parse(text);
+  } catch {
+    parsed = text;
+  }
   return { status: res.status, body: parsed };
 }
 
 async function makeTestServer() {
-  const failValidator = Object.assign(
-    (_obj: unknown): _obj is never => false,
-    {
-      errors: [{ message: "required" }] as unknown[],
-      schema: { $id: "test-schema", title: "Test", description: "" },
-    }
-  );
+  const failValidator = Object.assign((_obj: unknown): _obj is never => false, {
+    errors: [{ message: "required" }] as unknown[],
+    schema: { $id: "test-schema", title: "Test", description: "" },
+  });
 
   const app = new Koa();
   const router = new KoaRouter();
@@ -48,7 +49,7 @@ async function makeTestServer() {
     async (ctx) => {
       ctx.status = 200;
       ctx.body = { ok: true };
-    }
+    },
   );
 
   router.post(
@@ -57,7 +58,7 @@ async function makeTestServer() {
     async (ctx) => {
       ctx.status = 200;
       ctx.body = { ok: true, body: ctx.request.body };
-    }
+    },
   );
 
   app.use(router.routes());
@@ -69,7 +70,7 @@ async function makeTestServer() {
   const url = `http://127.0.0.1:${port}`;
   const close = () =>
     new Promise<void>((resolve, reject) =>
-      server.close((err) => (err ? reject(err) : resolve()))
+      server.close((err) => (err ? reject(err) : resolve())),
     );
   return { url, close };
 }
@@ -107,11 +108,16 @@ describe("jsonBody middleware", () => {
   });
 
   it("failing validator → 400 jsonchema_validation_failed with schema and errors", async () => {
-    const res = await request(url + "/fail-validate", { body: { any: "thing" } });
+    const res = await request(url + "/fail-validate", {
+      body: { any: "thing" },
+    });
     assert.equal(res.status, 400);
     assert.equal((res.body as any).error, "jsonchema_validation_failed");
     assert.ok((res.body as any).schema, "response includes schema");
-    assert.ok(Array.isArray((res.body as any).errors), "response includes errors");
+    assert.ok(
+      Array.isArray((res.body as any).errors),
+      "response includes errors",
+    );
   });
 
   it("includeParams: param absent from body → merged in", async () => {