Refactor dashboard data flow and add resilience

[Blackleets]

Summary

• useAegisData hook — extracts ~200 lines of data-fetching logic from page.tsx into src/hooks/useAegisData.ts. activeLayers stays in the page as UI state; the hook takes it as a parameter and returns { data, backendStatus, globalStats, spaceWeather }.
• Shared types — src/lib/dashboard-types.ts centralises DashboardData, DashboardEntity, GlobalStats, SpaceWeather, and ActiveLayers so every component imports from one place.
• Toast notification system — src/components/Toast.tsx with ToastProvider, useToast() hook, and animated dismissal via Framer Motion (ready to wire up to error events).
• Per-panel ErrorBoundary — each panel (MarketsPanel, IntelFeed, ScmPanel, OsintPanel, LiveAlerts, AiAnalyst) is wrapped independently so a crash in one panel doesn't take down the whole dashboard.
• Skeleton loaders — MarketsPanel and IntelFeed now show animated animate-pulse placeholders while their data loads instead of rendering empty states.
• Edge cache on /api/markets — changed from no-store to s-maxage=60, stale-while-revalidate=120, reducing upstream calls given the 15-minute polling interval.

Test plan

• Dashboard loads without console errors
• MarketsPanel shows skeleton while markets data is pending, then renders real data
• IntelFeed shows skeleton while news data is pending, then renders real data
• Crashing one panel (e.g. by injecting a bad prop) does not affect other panels
• /api/markets response includes Cache-Control: public, s-maxage=60, stale-while-revalidate=120
• All layer toggles (flights, satellites, fires, etc.) still fetch their endpoints correctly

🤖 Generated with Claude Code

https://claude.ai/code/session_01XgBr67RS2ki85QqAXau36C

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Generated by Claude Code