feat: First session polish

[charlesvien]

Problem

Closes #1638
Closes #1649

Changes

1. Add slide-in animation for new user messages via framer-motion
2. Remove DiffStatsIndicator component and all cloudDiffStats plumbing from editor/stores/views
3. Remove "Copy Task ID" and "Copy Path" from context menus
4. Fix skills detail panel close button not selecting null on deselect
5. Move setContext from render body into useEffect to avoid side effects during render
6. Minor spacing/padding fixes for environment cards, generating indicator and session footer
7. Rename "Auto-accept Permissions" labels to "Bypass Permissions" across settings, execution modes and permission options
   1. Doing this because actual claude code auto mode is coming in the next adapter upgrade. https://code.claude.com/docs/en/permission-modes#eliminate-prompts-with-auto-mode

How did you test this?

Manually

[charlesvien]

• feat: Make phrocs the default dev runner #1684
• feat: First session polish #1658 👈 (View in Graphite)
• feat: Revamped update banner #1659
• feat: Implement a background to the installer dmg #1662
• fix: Prevent auto-generated title from overwriting manual rename #1676
• feat: Add task search and sidebar context menu integration to command center #1675
• fix: Generate title for attachment-only messages #1674
• main

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[charlesvien]

Merge activity

• Apr 16, 4:06 PM UTC: A user started a stack merge that includes this pull request via Graphite.
• Apr 16, 4:06 PM UTC: @charlesvien merged this pull request with Graphite.