[pending-judge] fix(integration): catalog detail reads app.docker.* (DC-160); Shield committed; composition-root e2e

- DC-160: /catalog/:appId read app.image/ports/env/volumes which live under
  app.docker.* — every detail response was empty. Now reads docker.* and
  surfaces defaultPort/subdomain/healthCheck/mediaMount/claimToken/difficulty/
  setupInstructions for the deploy form. List/search use the templates own
  category field (old hand-rolled CATEGORY_MAP mis-categorized apps).
- Shield (routes/shield.js + 5-line app.js mount) committed to source after
  weeks as prod-only drift; regression test asserts the mount exists.
- New composition-root e2e suite: boots REAL createApp() on an ephemeral
  port, probes the historically-broken routes through the REAL mount table
  (wizard wiring, shield, catalog detail, deploys bridge) — the class of bug
  all 3 P7 dogfood findings belonged to. 5 tests.
- Full suite 3499/3499 (155 suites); table-driven DC-160 test covers all 73
  image templates.

dashcaddy-api/__tests__/e2e-node/composition-root.e2e.test.js

@@ -0,0 +1,98 @@
+/**
+ * Composition-root integration test — the "tests pass, prod breaks" cure.
+ *
+ * WHY: all three P7 dogfood bugs (wizard mount missing providers; coord
+ * client never attached; people deduped by id only) shipped to prod with the
+ * full unit suite green, because unit tests inject their own mocks instead
+ * of exercising the real app.js wiring. This suite boots the REAL createApp()
+ * on an ephemeral port and drives HTTP through the real mount table — the
+ * exact wiring that runs in production — for the routes that historically
+ * broke: /network/wizard, /security/shield, /catalog/:id, /deploys.
+ *
+ * Uses DATA_DIR to point the app at a throwaway data dir; no prod files are
+ * touched.
+ */
+const { spawn } = require('child_process');
+const path = require('path');
+const os = require('os');
+const fs = require('fs');
+
+const ROOT = path.resolve(__dirname, '..', '..');
+
+// Boot the REAL app via its REAL entry contract (createApp + listen).
+function boot(port) {
+  return new Promise((resolve, reject) => {
+    const child = spawn(process.execPath, ['-e', `
+      process.env.DATA_DIR = ${JSON.stringify(DATA_DIR)};
+      const { createApp } = require(${JSON.stringify(path.join(ROOT, 'src', 'app'))});
+      // NOTE: the -e script resolves relative requires from CWD semantics;
+      // the absolute path above is required.
+      createApp().then((created) => {
+        const app = created.app || created;
+        const server = app.listen(${port}, '127.0.0.1', () => {
+          console.log('READY');
+        });
+        process.on('SIGTERM', () => server.close(() => process.exit(0)));
+      }).catch((e) => { console.error('BOOT-FAIL', e && e.message); process.exit(1); });
+    `], { cwd: ROOT, stdio: ['ignore', 'pipe', 'pipe'] });
+    child.stdout.on('data', (d) => {
+      if (String(d).includes('READY')) resolve(child);
+    });
+    child.stderr.on('data', (d) => process.stderr.write('[boot] ' + d));
+    child.on('exit', (code) => reject(new Error('boot exited ' + code)));
+    setTimeout(() => reject(new Error('boot timeout')), 30000);
+  });
+}
+
+const DATA_DIR = fs.mkdtempSync(path.join(os.tmpdir(), 'dc-comp-root-'));
+const PORT = 30000 + Math.floor(Math.random() * 20000);
+let child;
+
+async function get(p, expectAuth = true) {
+  const res = await fetch(`http://127.0.0.1:${PORT}${p}`, { redirect: 'manual' });
+  return { status: res.status, body: await res.text() };
+}
+
+describe('composition-root e2e (real createApp on ephemeral port)', () => {
+  beforeAll(async () => {
+    child = await boot(PORT);
+  }, 45000);
+
+  afterAll(async () => {
+    if (child) { child.kill('SIGTERM'); await new Promise((r) => child.on('exit', r)); }
+    fs.rmSync(DATA_DIR, { recursive: true, force: true });
+  });
+
+  it('boots the real app without throwing', () => {
+    expect(child.exitCode).toBeNull();
+  });
+
+  it('/network/wizard/state is mounted and wired (finding #1 regression)', async () => {
+    const r = await get('/api/v1/network/wizard/state');
+    // 401 = auth-gated but MOUNTED; the bug shipped 404/503-from-broken-mount.
+    expect([200, 401]).toContain(r.status);
+  });
+
+  it('/security/shield is mounted (prod-drift regression)', async () => {
+    const r = await get('/api/v1/security/shield');
+    // 401 = auth-gated but mounted; 200/503 = auth disabled/with snapshot.
+    // 404 would mean the prod-only drift regressed.
+    expect([200, 401, 503]).toContain(r.status);
+  });
+
+  it('/catalog/plex returns real image via app.docker.* (DC-160)', async () => {
+    const r = await get('/api/v1/catalog/plex');
+    // Auth-gated in the real composition root: assert mounted + gate, not 404.
+    expect([200, 401]).toContain(r.status);
+    if (r.status === 200) {
+      expect(r.body).toContain('plexinc/pms-docker');
+    } else {
+      expect(r.body).toContain('Authentication required');
+    }
+  });
+
+  it('/deploys bridge is mounted (opt-in feature flag)', async () => {
+    const r = await get('/api/v1/deploys/repos');
+    expect([200, 401, 501]).toContain(r.status);
+  });
+});