- Add iframe.ts to handle requests for unpartitioned OPFS root. - Introduce lock.ts for managing file operation locks using Web Locks or local FIFO locks. - Create path.ts for path normalization and validation in the virtual filesystem. - Implement probe.ts to diagnose OPFS capabilities and storage availability. - Define schema.ts for type validation of paths, entries, and error codes. - Add stream.ts for handling byte streams and data writing. - Introduce sync.ts for synchronous file operations and management. Signed-off-by: Okiki Ojo <hey@okikio.dev>