feat: warm-up deps — ts-reset, web-vitals, RHF devtool, query-broadcast

Four low-risk adds before the Zod 4 / drizzle-zod headliner:

- @total-typescript/ts-reset: tightens TS stdlib types globally (JSON.parse
  → unknown, fetch().json() → unknown, .filter(Boolean) narrows, Set
  literals respect typed Set targets). Caught 179 latent type errors;
  fixed all production sites (8 files) and added `any` cast escape hatch
  in test files (ESLint exemption scoped to tests/).
- web-vitals + /api/v1/internal/vitals endpoint + WebVitalsReporter
  client component: establishes Core Web Vitals baseline (LCP/INP/CLS/
  FCP/TTFB) via navigator.sendBeacon. Required before optimisation work.
- @hookform/devtools + FormDevtool wrapper: dev-only RHF state inspector,
  lazy-loaded via next/dynamic so the chunk is excluded from prod
  bundles entirely.
- @tanstack/query-broadcast-client-experimental: cross-tab cache sync
  via BroadcastChannel — wired in query-provider.tsx, 1-liner.

Audit doc updated with sections 35 + 36 (PDF stack overhaul + comprehensive
second-pass package sweep) covering ~20 package adoption candidates and
4-5 deprecation candidates.

Verified: tsc clean, vitest 1293/1293 pass.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

tests/integration/api/interest-berths.test.ts

@@ -56,7 +56,7 @@ describe('GET /api/v1/interests/[id]/berths (listHandler)', () => {
     const req = makeMockRequest('GET', `http://localhost/api/v1/interests/${interest.id}/berths`);
     const res = await listHandler(req, ctx, { id: interest.id });
     expect(res.status).toBe(200);
-    const body = await res.json();
+    const body = (await res.json()) as any;
     expect(body.data).toHaveLength(1);
     expect(body.data[0].berthId).toBe(berth.id);
     expect(body.data[0].mooringNumber).toBe(berth.mooringNumber);
@@ -102,7 +102,7 @@ describe('POST /api/v1/interests/[id]/berths (addHandler)', () => {
     });
     const res = await addHandler(req, ctx, { id: interest.id });
     expect(res.status).toBe(201);
-    const body = await res.json();
+    const body = (await res.json()) as any;
     expect(body.data.berthId).toBe(berth.id);
     expect(body.data.isSpecificInterest).toBe(true);
   });
@@ -165,7 +165,7 @@ describe('PATCH /api/v1/interests/[id]/berths/[berthId] (patchHandler)', () => {
     );
     const res = await patchHandler(req, ctx, { id: interest.id, berthId: berth.id });
     expect(res.status).toBe(200);
-    const body = await res.json();
+    const body = (await res.json()) as any;
     expect(body.data.isInEoiBundle).toBe(true);
     expect(body.data.isSpecificInterest).toBe(false);
   });