Add Logbuch: project update blog with admin, media and API

Public archive with sidebar navigation, project pages, month archive,
search and entry pages with image blocks. Admin area for brands,
projects, post types, users, api clients, media and the entry editor
with drag and drop images, preview per audience, scheduling and
publish checks. Read and write API with bearer tokens, audience
scoping, idempotent creation, OpenAPI document and editorial guide.
Magic link login with configurable allowed domains, whole app behind
the session gate. 456 tests including design rule checks.

src/lib/admin-routes.ts

@@ -0,0 +1,33 @@
+import type { Route } from 'next'
+
+export const adminEntriesPath = '/admin/entries' as Route
+export const adminNewEntryPath = '/admin/entries/new' as Route
+export const lastProjectCookie = 'logbuch-last-project'
+export const adminProjectsPath = '/admin/projects' as Route
+export const adminNewProjectPath = '/admin/projects/new' as Route
+export const adminBrandsPath = '/admin/brands' as Route
+export const adminNewBrandPath = '/admin/brands/new' as Route
+export const adminUsersPath = '/admin/users' as Route
+export const adminClientsPath = '/admin/clients' as Route
+export const adminPostTypesPath = '/admin/post-types' as Route
+export const adminNewPostTypePath = '/admin/post-types/new' as Route
+
+export function adminPostTypePath(id: string): Route {
+	return `/admin/post-types/${encodeURIComponent(id)}` as Route
+}
+
+export function adminEntryPath(id: string): Route {
+	return `/admin/entries/${encodeURIComponent(id)}` as Route
+}
+
+export function adminProjectPath(id: string): Route {
+	return `/admin/projects/${encodeURIComponent(id)}` as Route
+}
+
+export function adminBrandPath(id: string): Route {
+	return `/admin/brands/${encodeURIComponent(id)}` as Route
+}
+
+export function adminUserPath(id: string): Route {
+	return `/admin/users/${encodeURIComponent(id)}` as Route
+}