BREAKING CHANGE(db): replace StorageManager and CacheDb with a unified smartdata-backed database layer

ts/db/index.ts

@@ -0,0 +1,11 @@
+// Unified database manager
+export * from './classes.dcrouter-db.js';
+
+// TTL base class and constants
+export * from './classes.cached.document.js';
+
+// Cache cleaner
+export * from './classes.cache.cleaner.js';
+
+// Document classes
+export * from './documents/index.js';