Rebuild: schema for groups, rule sets, ranges, release catalog, chunk store, fragments, probe queue, rule bookkeeping and nodes

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

database/migrations/1770000000400_create_releases.ts

@@ -0,0 +1,41 @@
+import { BaseSchema } from '@adonisjs/lucid/schema'
+
+/**
+ * The release catalog (REBUILD.md, part 4): one row per release, the hot
+ * part on fast disk. Updated with aggregates once per batch; the files
+ * themselves are in release_chunks.
+ */
+export default class extends BaseSchema {
+  async up() {
+    this.schema.createTable('releases', (table) => {
+      table.bigIncrements('id')
+      table.string('release_key', 40).notNullable().unique()
+      table.text('name').notNullable()
+      table.string('source', 16).notNullable()
+      table.text('poster').nullable()
+      table.jsonb('groups').notNullable()
+      table.timestamp('posted_at', { useTz: true }).nullable()
+      // Files announced by the [i/N] counter, when present.
+      table.integer('file_total').nullable()
+      table.integer('files').notNullable().defaultTo(0)
+      table.bigInteger('segments').notNullable().defaultTo(0)
+      table.bigInteger('bytes').notNullable().defaultTo(0)
+      table.integer('chunks').notNullable().defaultTo(0)
+      table.bigInteger('first_article').nullable()
+      table.bigInteger('last_article').nullable()
+      table.boolean('readable').notNullable().defaultTo(false)
+      table.boolean('has_par2').notNullable().defaultTo(false)
+      table.boolean('complete').nullable()
+      table.timestamp('settled_at', { useTz: true }).nullable()
+      table.timestamp('first_seen_at', { useTz: true }).notNullable().defaultTo(this.now())
+      table.timestamp('last_seen_at', { useTz: true }).notNullable().defaultTo(this.now())
+    })
+    this.schema.raw(`CREATE EXTENSION IF NOT EXISTS pg_trgm`)
+    this.schema.raw(`CREATE INDEX releases_name_trgm ON releases USING gin (name gin_trgm_ops)`)
+    this.schema.raw(`CREATE INDEX releases_posted_at_idx ON releases (posted_at DESC)`)
+  }
+
+  async down() {
+    this.schema.dropTable('releases')
+  }
+}