v1.3.1
- The agent composer supports `@` references to assets, notes, boards and workflows: names in the text, ids in structured fields, and clickable chips after sending.
- Thinking levels now come from a per-vendor table: models that cannot stop thinking no longer offer "Off", and connections that cannot carry a level say why.
- Fixed menu separators being the same colour as the surface in dark mode — menus, the command palette and the notification and task panels all get their dividers back.
- The generation engine-settings panel is grouped into engine, output, inputs and tuning, with a header that no longer scrolls away.
