Remove "Stop All" button from command center toolbar

[k11kirky]

Problem

Two pieces of Command Center feedback from the thread:

1. The toolbar had a "Stop All" button that cancels every running/waiting agent at once — an easy-to-hit, broad action whose value was questioned.
2. After trimming the grid down to a couple of tasks, opening a task full-screen and coming back re-filled all the empty cells with recent tasks, so the curated layout was lost every time.

Changes

Remove "Stop All"

• Removed the button from CommandCenterToolbar, plus the now-unused stopAll handler, hasActiveAgents check, cells prop, and the getSessionService / Stop icon / CommandCenterCellData imports.
• CommandCenterView no longer passes cells to the toolbar.

Stop autofill from clobbering a curated grid

• Autofill re-ran on every mount (its guard was a per-mount useRef), so navigating away and back re-topped-up empty cells. It's now a one-time bootstrap gated on a persisted hasAutofilled flag.
• The flag is set once autofill populates the grid, when the grid is already full, or when the user manually assigns a task — so a curated layout (including deliberately empty cells) survives navigation.
• The flag stays unset when there are no eligible tasks yet, so autofill can still bootstrap the grid once recent tasks exist.
• The existing "top up empty slots on first open" behaviour is preserved.

How did you test this?

• vitest run on commandCenterStore.test.ts and useAutofillCommandCenter.test.ts — 26 tests pass, including new cases: autofill no longer tops up once hasAutofilled is set, the flag is set on fill / full grid / manual assign, and it stays unset when there are no candidates.
• tsc -p tsconfig.web.json reports no errors in the command-center files; biome check is clean.

Automatic notifications

• Publish to changelog?
• Alert Sales and Marketing teams?

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[greptile-apps]

_{Reviews (1): Last reviewed commit: "Remove "Stop All" button from command ce..." | Re-trigger Greptile}

[sakce]

oh yeah