Index beta evidence and foreign key child lookups

src/lib/server/game-files/schema.ts

@@ -48,6 +48,7 @@ export function ensureGameFileSchema(handle: Database.Database): void {
             FROM game_file_versions v,json_each(v.manifest) f;
         CREATE TRIGGER IF NOT EXISTS game_file_versions_immutable BEFORE UPDATE ON game_file_versions
         WHEN OLD.state = 'ready' BEGIN SELECT RAISE(ABORT, 'Published game-file versions are immutable'); END;
+        CREATE INDEX IF NOT EXISTS idx_host_library_caches_version ON host_library_caches(version_id);
     `);
     const versionColumns = handle.prepare('PRAGMA table_info(game_file_versions)').all() as { name: string }[];
     if (!versionColumns.some(column => column.name === 'last_activity_at')) handle.exec('ALTER TABLE game_file_versions ADD COLUMN last_activity_at TEXT');