test(lanes): prove profile scaffolding end to end with a real boot (A3)

server/__tests__/lane-detect.test.js

@@ -341,3 +341,54 @@ describe("checkProfile", () => {
     }
   });
 });
+
+describe("end to end: init -> check -> real boot", () => {
+  it("a single-service, no-database repo boots for real after init", async () => {
+    const lanesLib = require("../lib/lanes");
+    const runtime = require("../lib/lane-runtime");
+
+    const repo = makeRepo();
+    // A plain Node script reading process.env.PORT — the exact convention
+    // bootLine's `env PORT="$..." npm run <script>` targets.
+    fs.writeFileSync(
+      path.join(repo, "package.json"),
+      JSON.stringify({
+        scripts: {
+          start:
+            "node -e \"require('http').createServer((_,res)=>res.end('ok')).listen(process.env.PORT)\"",
+        },
+      })
+    );
+    const facts = detect.detectNode(repo);
+    detect.scaffoldProfile(repo, facts);
+    const checked = await detect.checkProfile(repo);
+    assert.equal(checked.ok, true, JSON.stringify(checked.errors));
+
+    const lane = lanesLib.createLane({ title: "e2e", cwd: repo, kind: "managed" });
+    try {
+      const runtimeFacts = await runtime.upLane(lanesLib.getLane(lane.id));
+      assert.equal(runtimeFacts.up, true);
+      assert.equal(runtimeFacts.healthy, true);
+    } finally {
+      await runtime.downLane(lanesLib.getLane(lane.id));
+    }
+  });
+
+  it("a monorepo with a database scaffolds correctly but check fails until migrate/seed are finished", async () => {
+    const repo = makeRepo();
+    writePkg(path.join(repo, "backend"), { start: "node server.js" });
+    writePkg(path.join(repo, "frontend"), { dev: "vite" });
+    writeCompose(repo, "  postgres:\n    image: postgres:16\n  redis:\n    image: redis:7\n");
+    fs.writeFileSync(path.join(repo, "backend", ".env.example"), "SOMETHING=1\n");
+
+    const facts = detect.detectNode(repo);
+    const scaffolded = detect.scaffoldProfile(repo, facts);
+    assert.ok(scaffolded.todos.includes("hooks/migrate.sh"));
+    assert.ok(scaffolded.todos.includes("hooks/seed.sh"));
+
+    const checked = await detect.checkProfile(repo);
+    assert.equal(checked.ok, false);
+    assert.ok(checked.errors.some((e) => /migrate\.sh/.test(e)));
+    assert.ok(checked.errors.some((e) => /seed\.sh/.test(e)));
+  });
+});