refactor(navigation)!: delete navigation demo feature

Veect retrofit (ADR-027): fifth and final slice of the demo-content
removal. Deletes packages/navigation whole and prunes every composition
edge in one commit: core-api router mount + dep + router test, core-cms
header-global composition + dep + regenerated Payload types (globals
now empty), web-next bindAll (prod + dev-seed) + tests + Tailwind
source + transpilePackages + dep, cms/core-cms payload config test
assertions, home e2e nav assertion, tsconfig paths, fallow
ignoreDependencies entry, anchor-guard FEATURES list, generator e2e
strip lists + reference-feature comments (navigation -> auth, incl.
feature templates + scaffolding guide), lockfile prune, and
feature-list doc trims (CLAUDE.md, AGENTS.md, glossary, app/feature
AGENTS.md). Compliance YAML regeneration produced no churn (navigation
declared no PII).

Cycle break: navigation's UI hooks were the last edge closing the
committed core-trpc -> core-api -> navigation -> core-trpc package
cycle. With it gone, the lint turbo task graph builds for the first
time and every package's ESLint executes; the epic's lint waiver
expires here. Latent findings: 3 errors, all mechanical, fixed
in-slice - require() import in turbo/generators/config.ts
(no-require-imports), literal type assertion in auth's
authentication.service.ts (prefer-as-const), and next-env.d.ts
triple-slash in apps/cms (rule scoped off for that generated file,
mirroring web-next's existing override). 99 warn-severity findings
remain across 5 packages (pii-declaration-must-be-complete on test
fixtures, turbo/no-undeclared-env-vars on test env keys) - all
warn-by-design, non-gating.

core-trpc keeps a consumer (apps/web-next providers) and stays per
ADR-027. Its unused @trpc/react-query dependency, surfaced by the
post-deletion fallow audit, is removed rather than ignore-listed -
core-trpc's hooks use @trpc/tanstack-react-query. Remaining fallow
warn (auth validateSession "unused member") is a false positive: the
method implements IAuthenticationService and is exercised in
container.test.ts; auth stays untouched as the regression canary.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_016j8z4VHjedXDTjEDNg7qHK

apps/cms/AGENTS.md

@@ -49,14 +49,10 @@ When Payload imports `@payload-config`, it resolves to the composed config from
 ## Composition flow
 
 ```
-Feature 1 (@repo/auth)
+Feature (@repo/auth)
   └─ src/integrations/cms/collections/users.ts
       └─ exported as ./cms
 
-Feature 2 (@repo/navigation)
-  └─ src/integrations/cms/globals/header.ts
-      └─ exported as ./cms
-
 Core CMS (@repo/core-cms)
   └─ src/payload.config.ts
       imports all feature /cms exports

apps/cms/eslint.config.js

@@ -1,3 +1,11 @@
 import baseConfig from "@repo/core-eslint/base";
 
-export default baseConfig;
+export default [
+  ...baseConfig,
+  {
+    files: ["next-env.d.ts"],
+    rules: {
+      "@typescript-eslint/triple-slash-reference": "off",
+    },
+  },
+];

apps/cms/src/payload.config.test.ts

@@ -8,9 +8,9 @@ describe("CMS app payload.config", () => {
     expect(slugs).toEqual(expect.arrayContaining(["users"]));
   });
 
-  it("registers all feature globals", async () => {
+  it("registers no feature globals (none remain)", async () => {
     const resolved = await config;
     const slugs = resolved.globals?.map((g) => g.slug) ?? [];
-    expect(slugs).toEqual(expect.arrayContaining(["header"]));
+    expect(slugs).toEqual([]);
   });
 });

apps/web-next/AGENTS.md

@@ -66,14 +66,14 @@ export function Providers({ children }: { children: React.ReactNode }) {
 
 ## Dependencies
 
-| Dependency                             | Purpose                                                    |
-| -------------------------------------- | ---------------------------------------------------------- |
-| `@repo/core-api`                       | `appRouter` for tRPC endpoint                              |
-| `@repo/core-trpc/next`                 | Next.js tRPC client + provider (optional — scaffold first) |
-| `@repo/core-ui`                        | Design system components (optional — scaffold first)       |
-| `@repo/auth`, `@repo/navigation`, etc. | Feature packages (indirectly via core-api)                 |
-| `next`                                 | Next.js 15 framework                                       |
-| `@trpc/server`                         | tRPC server (fetch adapter)                                |
+| Dependency             | Purpose                                                    |
+| ---------------------- | ---------------------------------------------------------- |
+| `@repo/core-api`       | `appRouter` for tRPC endpoint                              |
+| `@repo/core-trpc/next` | Next.js tRPC client + provider (optional — scaffold first) |
+| `@repo/core-ui`        | Design system components (optional — scaffold first)       |
+| `@repo/auth`, etc.     | Feature packages (indirectly via core-api)                 |
+| `next`                 | Next.js 15 framework                                       |
+| `@trpc/server`         | tRPC server (fetch adapter)                                |
 
 ## Test conventions
 
@@ -104,7 +104,7 @@ Run: `pnpm test:e2e` starts the dev server and runs all `.spec.ts` files.
 
 ## Cross-References
 
-- **Feature packages:** `packages/{auth,navigation}/`
+- **Feature packages:** `packages/auth/`
 - **tRPC composition:** `packages/core-api/AGENTS.md`
 - **tRPC client + provider (optional):** scaffold `@repo/core-trpc` first, then see `turbo/generators/templates/core-package/trpc/AGENTS.md.hbs`
 - **UI components (optional):** scaffold with `pnpm turbo gen core-package ui`, then see `turbo/generators/templates/core-package/ui/AGENTS.md.hbs`

apps/web-next/e2e/home.spec.ts

@@ -1,10 +1,7 @@
 import { test, expect } from "@playwright/test";
 
-test("home page renders heading + nav", async ({ page }) => {
+test("home page renders heading", async ({ page }) => {
   await page.goto("/");
   // Page renders and shows the heading
   await expect(page.locator("h1").first()).toBeVisible();
-  // Nav element is present on the page
-  const nav = page.locator("nav");
-  await expect(nav).toHaveCount(1);
 });

apps/web-next/next.config.mjs

@@ -12,7 +12,6 @@ const nextConfig = {
     "@repo/core-dsr",
     "@repo/core-shared",
     "@repo/core-ui",
-    "@repo/navigation",
     "@repo/core-trpc",
   ],
 };

apps/web-next/package.json

@@ -19,7 +19,6 @@
     "@repo/core-cms": "workspace:*",
     "@repo/core-shared": "workspace:*",
     "@repo/core-trpc": "workspace:^",
-    "@repo/navigation": "workspace:*",
     "@sentry/nextjs": "^10.51.0",
     "@tailwindcss/postcss": "^4.3.0",
     "@tanstack/react-query": "^5.96.2",

apps/web-next/src/server/bind-production.test.ts

@@ -7,13 +7,7 @@ vi.mock("payload", () => ({
 vi.mock("@repo/auth/di/bind-production", () => ({
   bindProductionAuth: vi.fn(),
 }));
-vi.mock("@repo/navigation/di/bind-production", () => ({
-  bindProductionNavigation: vi.fn(),
-}));
 vi.mock("@repo/auth/di/bind-dev-seed", () => ({ bindDevSeedAuth: vi.fn() }));
-vi.mock("@repo/navigation/di/bind-dev-seed", () => ({
-  bindDevSeedNavigation: vi.fn(),
-}));
 vi.mock("@repo/core-shared/instrumentation", async (importOriginal) => {
   const actual =
     await importOriginal<typeof import("@repo/core-shared/instrumentation")>();
@@ -33,17 +27,14 @@ describe("bindAllProduction", () => {
     vi.clearAllMocks();
   });
 
-  it("binds both feature production repos", async () => {
+  it("binds the auth feature production repos", async () => {
     const { bindAllProduction } = await import("./bind-production");
     const { bindProductionAuth } =
       await import("@repo/auth/di/bind-production");
-    const { bindProductionNavigation } =
-      await import("@repo/navigation/di/bind-production");
 
     await bindAllProduction();
 
     expect(bindProductionAuth).toHaveBeenCalledOnce();
-    expect(bindProductionNavigation).toHaveBeenCalledOnce();
   });
 
   it("is idempotent via bindAll — second call does not re-bind", async () => {

apps/web-next/src/server/bind-production.ts

@@ -18,9 +18,7 @@ import {
 } from "@repo/core-shared/jobs";
 import { NoopRateLimit } from "@repo/core-shared/rate-limit";
 import { bindProductionAuth } from "@repo/auth/di/bind-production";
-import { bindProductionNavigation } from "@repo/navigation/di/bind-production";
 import { bindDevSeedAuth } from "@repo/auth/di/bind-dev-seed";
-import { bindDevSeedNavigation } from "@repo/navigation/di/bind-dev-seed";
 
 let bindPromise: Promise<void> | null = null;
 
@@ -94,7 +92,6 @@ export async function bindAllProduction(): Promise<void> {
   };
 
   bindProductionAuth(ctx);
-  bindProductionNavigation(ctx);
 }
 
 /**
@@ -114,7 +111,6 @@ export async function bindAllDevSeed(): Promise<void> {
   };
 
   await bindDevSeedAuth(ctx);
-  await bindDevSeedNavigation(ctx);
 }
 
 /**

apps/web-next/src/styles/app.css

@@ -1,6 +1,5 @@
 @import "tailwindcss";
 @source "../../../../packages/core-ui/src";
-@source "../../../../packages/navigation/src";
 @source "../../../../packages/auth/src";
 @source "../";