refactor(blog)!: delete blog demo feature

Veect retrofit (ADR-027): the template's demo content is being removed
to make room for the Veect package map. This slice deletes
packages/blog whole and prunes every composition edge in one commit:
core-api router mount, core-cms collections + regenerated Payload
types, web-next bindAll entry / home page / blog route / Tailwind
sources, blog e2e spec, tsconfig paths, fallow ignore entry,
anchor-guard + generator e2e feature lists, compliance artifacts,
and feature-list doc entries (CLAUDE.md, AGENTS.md, glossary).

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

AGENTS.md

@@ -37,7 +37,6 @@ See `docs/guides/runbook.md` for the full workflow.
 | `@repo/core-cms`        | core-composition | Payload config aggregator — imports `@repo/<feature>/cms` only                                                                         |
 | `@repo/core-trpc`       | core-composition | Frontend tRPC client + framework-specific providers (Next.js, TanStack)                                                                |
 | `@repo/auth`            | feature          | Users collection + sign-in/up/out                                                                                                      |
-| `@repo/blog`            | feature          | Articles collection + article use-cases                                                                                                |
 | `@repo/media`           | feature          | Media collection + upload helpers                                                                                                      |
 | `@repo/marketing-pages` | feature          | Pages collection + SiteSettings global                                                                                                 |
 | `@repo/navigation`      | feature          | Header global                                                                                                                          |
@@ -54,7 +53,7 @@ See `docs/guides/runbook.md` for the full workflow.
 - **app** (3 packages) — `apps/web-next`, `apps/cms`, `apps/storybook`
 - **core-composition** (3 packages) — `packages/core-api`, `core-cms`, `core-trpc`
 - **core** (1–2 packages) — `packages/core-shared`; `core-ui` is optional (scaffold with `pnpm turbo gen core-package ui`)
-- **feature** (5 packages) — `packages/auth`, `blog`, `media`, `marketing-pages`, `navigation`
+- **feature** (4 packages) — `packages/auth`, `media`, `marketing-pages`, `navigation`
 - **tooling** (3 packages) — `packages/core-eslint`, `core-typescript`, `core-testing`
 
 ### Allowed dependency directions
@@ -128,8 +127,8 @@ docker compose up -d   # Start PostgreSQL
 pnpm dev --filter @repo/web-next              # Only Next.js app
 pnpm dev --filter @repo/cms                   # Only CMS admin
 pnpm dev --filter @repo/storybook             # Only Storybook
-pnpm typecheck --filter @repo/blog            # Only blog feature
-pnpm test --filter @repo/blog                 # Only blog unit/integration tests
+pnpm typecheck --filter @repo/auth            # Only auth feature
+pnpm test --filter @repo/auth                 # Only auth unit/integration tests
 ```
 
 ---
@@ -385,7 +384,6 @@ export async function bindAllProduction(): Promise<void> {
   };
 
   bindProductionAuth(ctx);
-  bindProductionBlog(ctx);
   bindProductionMarketingPages(ctx);
   bindProductionNavigation(ctx);
   bindProductionMedia(ctx);
@@ -408,12 +406,11 @@ export async function bindAllDevSeed(): Promise<void> {
   };
 
   await bindDevSeedAuth(ctx);
-  await bindDevSeedBlog(ctx);
   // ... (same for marketing-pages, navigation, media)
 }
 ```
 
-Actual function names: `bindProductionAuth`, `bindProductionBlog`, `bindProductionMarketingPages`, `bindProductionNavigation`, `bindProductionMedia`.
+Actual function names: `bindProductionAuth`, `bindProductionMarketingPages`, `bindProductionNavigation`, `bindProductionMedia`.
 
 Each feature binder signature is `(ctx: BindProductionContext): void` for production and `(ctx: BindContext): Promise<void>` for dev-seed. Required ctx fields: `tracer`, `logger`. Production-only: `config`. Optional: `bus`, `queue`, `realtime`, `realtimeRegistry`.
 
@@ -579,6 +576,6 @@ Per-package documentation lives in each `AGENTS.md`:
 - `packages/core-shared/AGENTS.md`
 - `packages/core-api/AGENTS.md`, `core-cms/AGENTS.md`, `core-trpc/AGENTS.md`
 - `packages/core-ui/AGENTS.md` (optional — generated by `pnpm turbo gen core-package ui`; see `turbo/generators/templates/core-package/ui/AGENTS.md.hbs`)
-- `packages/auth/AGENTS.md`, `blog/AGENTS.md`, `media/AGENTS.md`, `marketing-pages/AGENTS.md`, `navigation/AGENTS.md`
+- `packages/auth/AGENTS.md`, `media/AGENTS.md`, `marketing-pages/AGENTS.md`, `navigation/AGENTS.md`
 - `packages/core-eslint/AGENTS.md`, `core-typescript/AGENTS.md`, `core-testing/AGENTS.md`
 - `apps/cms/AGENTS.md`, `web-next/AGENTS.md`, `storybook/AGENTS.md`