Rebuild: fresh AdonisJS 7 API app on Postgres

The rebuild branch starts over (REBUILD.md): the API starter kit, with
Postgres instead of SQLite (its own database, DB_SEARCH_PATH for a
shared one in development) and the #lib alias. Phase 1's code is
imported from the current app module by module.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

lib/newznab/categories.ts

@@ -1,40 +0,0 @@
-/** Newznab categories this indexer assigns (see release_category() in SQL). */
-export const CATEGORIES: { id: number; name: string; subcats: { id: number; name: string }[] }[] = [
-  { id: 2000, name: 'Movies', subcats: [{ id: 2030, name: 'SD' }, { id: 2040, name: 'HD' }, { id: 2045, name: 'UHD' }] },
-  { id: 3000, name: 'Audio', subcats: [{ id: 3010, name: 'MP3' }, { id: 3040, name: 'Lossless' }] },
-  { id: 4000, name: 'PC', subcats: [] },
-  { id: 5000, name: 'TV', subcats: [{ id: 5030, name: 'SD' }, { id: 5040, name: 'HD' }, { id: 5045, name: 'UHD' }] },
-  { id: 7000, name: 'Books', subcats: [{ id: 7020, name: 'Ebook' }] },
-  { id: 8000, name: 'Other', subcats: [{ id: 8010, name: 'Misc' }] },
-]
-
-/** Parent category of a (sub)category, e.g. 5040 → 5000. */
-export function parentCategory(id: number): number {
-  return Math.floor(id / 1000) * 1000
-}
-
-/** "TV > HD" style label. */
-export function categoryLabel(id: number): string {
-  const parent = CATEGORIES.find((c) => c.id === parentCategory(id))
-  if (!parent) return 'Other'
-  const sub = parent.subcats.find((s) => s.id === id)
-  return sub ? `${parent.name} > ${sub.name}` : parent.name
-}
-
-/**
- * Expands requested categories (`cat=5000,2040`) to the concrete ones to
- * match: a parent includes all of its subcategories.
- */
-export function expandCategories(requested: number[]): number[] {
-  const result = new Set<number>()
-  for (const id of requested) {
-    const parent = CATEGORIES.find((c) => c.id === id)
-    if (parent) {
-      result.add(parent.id)
-      for (const sub of parent.subcats) result.add(sub.id)
-    } else {
-      result.add(id)
-    }
-  }
-  return [...result]
-}