feat: redesign initiative detail view + mission-control fixes

[hopeatina]

Summary

• 9-phase Jony Ive redesign of the Mission Control expanded initiative view: relative ETAs, typography-weight priorities, hover-only actions, agent deduplication, column collapse (10→5), queue urgency signals, inline indicators replacing banners, SVG progress ring stats, and dependency map as swimlane visualization
• Entity detail modal improvements across Initiative, Milestone, Task, and Workstream modals
• Decision queue enhancements, activity timeline fixes, next-up queue hook updates, agents/chats panel expansion
• QA artifacts and verification reports from regression testing

Test plan

• Build dashboard: npm --prefix dashboard run build
• Verify initiative detail view renders with compact 5-column table
• Verify edit mode restores all 10 columns
• Verify hover-only actions appear on row hover (and always on touch devices)
• Verify shared agent banner appears when all rows share same agent
• Verify dependency map renders SVG swimlane with connection lines
• Verify overdue items sort to top in queue with red left border
• Verify progress ring displays correct percentage
• Verify cycle warnings appear as inline badge in Dependency Map header

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