### New Features

#### Portal

- **Subscription tiering and usage limits** — Free accounts now have caps on datapacks, knowledge-base storage, MCP conversations, retrieval requests, and WorkbenchLM token usage. See [Meko pricing](https://mekodata.ai/pricing/) for plan details.
- **Free-tier gating in the UI** — When a limit is reached, the portal shows an upgrade banner and disables the relevant action (Add Datapack, knowledge upload, WorkbenchLM chat).

#### API

- **`GET /auth/me/usage`** — Returns per-account usage counters (datapack count, KB storage bytes, conversation count, WorkbenchLM token burn) for the signed-in user.
- **HTTP 402 on Free tier overage** — `POST /api/v1/datapacks` and knowledge-base uploads return `FREE_TIER_DATAPACK_LIMIT` or `FREE_TIER_KB_STORAGE_LIMIT` when a Free account exceeds its cap.