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

turbo/generators/__tests__/core-package-events.e2e.test.ts

@@ -63,7 +63,7 @@ describe("e2e: core-package events", () => {
 
       // Strip @repo/core-events from feature package.json files so pnpm install
       // succeeds without the package being present (simulating the post-removal state).
-      const featurePackages = ["auth", "navigation"];
+      const featurePackages = ["auth"];
       for (const pkg of featurePackages) {
         const pkgJson = join(tmp, "packages", pkg, "package.json");
         stripCoreEventsDep(pkgJson);

turbo/generators/__tests__/core-package-trpc.e2e.test.ts

@@ -63,12 +63,8 @@ describe("e2e: core-package trpc", () => {
 
       // Strip @repo/core-trpc from every package that references it so pnpm
       // install succeeds without the package being present (simulating the
-      // post-removal state). Apps list it directly; the navigation feature
-      // depends on it for its ./ui tRPC hooks.
-      for (const pkgDir of [
-        ["apps", "web-next"],
-        ["packages", "navigation"],
-      ]) {
+      // post-removal state). Only apps/web-next lists it directly.
+      for (const pkgDir of [["apps", "web-next"]]) {
         stripCoreTrpcDep(join(tmp, ...pkgDir, "package.json"));
       }
 

turbo/generators/config.ts

@@ -1,4 +1,4 @@
-import { existsSync } from "node:fs";
+import { existsSync, readFileSync, writeFileSync } from "node:fs";
 import { join } from "node:path";
 import type { PlopTypes } from "@turbo/gen";
 import { assertAnchors } from "./lib/anchor-validate.js";
@@ -16,7 +16,7 @@ import { registerFeatureInReleasePlease } from "./lib/release-please-utils.js";
  * Turbo generator: `feature`
  *
  * Scaffolds a feature package under `packages/<name>/`
- * matching the shape of the existing `navigation` reference feature.
+ * matching the shape of the existing `auth` reference feature.
  *
  * Scope (intentionally limited):
  *   - Single entity, single use case (`getX`)
@@ -1108,12 +1108,11 @@ function readerActions(a: { feature: string }): PlopTypes.ActionType[] {
     },
     // Add ./reader subpath to package.json exports map
     () => {
-      const fs = require("node:fs");
       const pkgPath = join(process.cwd(), pkgJsonPath);
-      const pkg = JSON.parse(fs.readFileSync(pkgPath, "utf8"));
+      const pkg = JSON.parse(readFileSync(pkgPath, "utf8"));
       if (!pkg.exports) pkg.exports = {};
       pkg.exports["./reader"] = "./src/integrations/readers/index.ts";
-      fs.writeFileSync(pkgPath, JSON.stringify(pkg, null, 2) + "\n");
+      writeFileSync(pkgPath, JSON.stringify(pkg, null, 2) + "\n");
       return `Added "./reader" export to ${pkgJsonPath}`;
     },
     () => printReaderNextSteps(a),

turbo/generators/templates/feature/src/__factories__/entity.factory.ts.hbs

@@ -1,4 +1,4 @@
 // Phase-1 stub. Replace with `defineFactory<{{pascalCase entity}}>` once the
-// entity shape stabilises. See packages/navigation/src/__factories__/ for an
+// entity shape stabilises. See packages/auth/src/__factories__/ for an
 // example.
 export {};

turbo/generators/templates/feature/src/integrations/cms/index.ts.hbs

@@ -1,6 +1,6 @@
 // Payload CMS integration barrel for @repo/{{kebabCase name}}.
 // Re-export this feature's collections and globals here as you add them
-// under ./collections and ./globals. See packages/navigation/src/integrations/cms
+// under ./collections and ./globals. See packages/auth/src/integrations/cms
 // for the canonical shape. The `<gen:job-tasks>` anchor below is required by
 // `pnpm turbo gen job` and `pnpm turbo gen event` — do not remove it.
 export {};

turbo/generators/templates/feature/src/ui/index.ts.hbs

@@ -1,4 +1,4 @@
 // Phase-1 placeholder. Re-export React Query option builders here once you
-// add `ui/query.ts`. See packages/navigation/src/ui/index.ts for the
+// add `ui/query.ts`. See packages/auth/src/ui/index.ts for the
 // canonical shape.
 export {};