Adds the **Proactiveness** settings tab for Company Brain channel/DM automations.
- Accordion list of automations — collapsed rows with an instant enable toggle + **Run now**, expand to edit.
- Two-column editor: prompt (left) / deliver-to channel or DM, frequency, day, time (right), with local-timezone-aware cron.
- Preset gallery (connection-first, category-diverse) for empty state + a New-automation menu.
- DM delivery option with a tooltip explaining channel visibility + personal-connection fallback.
- Profile-menu entry (gated on Company Brain).
Pairs with the API automations work: **supermemoryai/mono#2480**.
