Flowy: workspace, assets & credits

Tools for everything around the generations themselves:

• list_assets — browse the workspace's assets (images/videos/audio) with signed URLs. Supports media_type, search, and pagination (page, page_size up to 100).
• get_asset — one asset by assetId, with a fresh signed URL.
• get_account — the connected account: email, name, plan, and the account wallet's credit balance.
• list_workspaces — every workspace the account can act in (id, name, role, isPersonal).
• get_credits — a credit balance (total, blocked, available). Defaults to the account wallet; pass a workspace_id from list_workspaces for another workspace.
• list_transactions — recent credit transactions (newest first): amount, status (blocked | deducted | refunded | failed | granted | revoked), and which wallet paid.