feat: implement explicit sticker history cleanup (TASK-WP5-06)

apps/api/src/sticker-releases.ts

@@ -328,6 +328,14 @@ export class StickerReleaseService {
       input.width, input.height, input.expectedMimeType, input.original.sha256, input.original.fileId, input.original.bytes,
       input.thumbnail.fileId, input.thumbnail.relativePath, input.thumbnail.sha256, input.thumbnail.bytes, input.enabled ? 1 : 0,
     );
+    this.database.prepare(`
+      INSERT OR IGNORE INTO sticker_managed_file_history (
+        managed_file_id, stable_id, resource_version, file_kind, created_at
+      ) VALUES (?, ?, ?, 'original', ?), (?, ?, ?, 'thumbnail', ?)
+    `).run(
+      input.original.fileId, input.stableId, releaseVersion, this.clock(),
+      input.thumbnail.fileId, input.stableId, releaseVersion, this.clock(),
+    );
     this.consumeStagedStorage([input.original, input.thumbnail]);
     this.database.prepare(`
       INSERT INTO sticker_upload_receipts (actor_id, idempotency_key_digest, request_hash, release_version, stable_id, created_at)
@@ -510,6 +518,15 @@ export class StickerReleaseService {
         created_at TEXT NOT NULL,
         PRIMARY KEY (actor_id, idempotency_key_digest)
       );
+      CREATE TABLE IF NOT EXISTS sticker_managed_file_history (
+        managed_file_id TEXT NOT NULL,
+        stable_id TEXT NOT NULL,
+        resource_version TEXT NOT NULL,
+        file_kind TEXT NOT NULL CHECK (file_kind IN ('original', 'thumbnail')),
+        created_at INTEGER NOT NULL,
+        PRIMARY KEY (managed_file_id, file_kind),
+        FOREIGN KEY (managed_file_id) REFERENCES managed_files(file_id)
+      );
       CREATE TRIGGER IF NOT EXISTS sticker_releases_no_update
       BEFORE UPDATE ON sticker_releases BEGIN SELECT RAISE(ABORT, 'sticker_releases_immutable'); END;
       CREATE TRIGGER IF NOT EXISTS sticker_releases_no_delete
@@ -523,5 +540,17 @@ export class StickerReleaseService {
       WHEN EXISTS (SELECT 1 FROM sticker_releases WHERE release_version = OLD.release_version)
       BEGIN SELECT RAISE(ABORT, 'sticker_release_items_immutable'); END;
     `);
+    this.database.exec(`
+      INSERT OR IGNORE INTO sticker_managed_file_history (
+        managed_file_id, stable_id, resource_version, file_kind, created_at
+      )
+      SELECT original_file_id, stable_id, release_version, 'original', strftime('%s', 'now') * 1000
+      FROM sticker_release_items;
+      INSERT OR IGNORE INTO sticker_managed_file_history (
+        managed_file_id, stable_id, resource_version, file_kind, created_at
+      )
+      SELECT thumbnail_file_id, stable_id, release_version, 'thumbnail', strftime('%s', 'now') * 1000
+      FROM sticker_release_items;
+    `);
   }
 }