v1.1.1 — Performance Overhaul, Cost Estimation, Hydration Fix & Updated Dependencies

What's Changed

Performance Overhaul

• Eliminated all $lookup aggregations — replaced with two-phase query pattern (pre-group + batch $in + in-memory join), preventing full collection scans on Cosmos DB
• Connection hardening — maxPoolSize: 20, maxTimeMS: 60s, server/socket timeouts to prevent runaway queries
• API caching — in-memory cache with 30s TTL across all 18 data routes, reducing duplicate DB hits on page load
• Retry logic — useLoadableWithCache hook with 3 retries and exponential backoff for transient failures
• Error boundary — React Error Boundary wrapping dashboard to gracefully handle component crashes

Cost Estimation Feature

• Estimated Cost card — shows total estimated USD cost derived from LibreChat's tokenValue / 1,000,000 formula
• Cost by User table — sortable/searchable table with name, email, domain, cost, tokens, transactions, and cost percentage
• Cost by Domain pie chart — donut chart showing cost distribution across email domains
• TD Synnex link — direct link to real infrastructure + token pricing

Hydration Fix

• SSR guard in AuthGuard — returns null during server-side rendering, preventing MUI theme mismatch (useColorScheme() returns undefined on server vs "dark" on client)
• Client-only charts — replaced module-scope typeof window checks with useState + useEffect pattern in pie charts

Dependency Updates (0 vulnerabilities)

• Next.js 16.0.10 → 16.2.1 (8 security fixes)
• Jest 29 → 30, Biome 2.3 → 2.4
• MUI packages, jotai, mongodb, react, zod all updated to latest
• @types/node 22 → 25
• Fixed all npm audit vulnerabilities (diff, dompurify, jspdf, minimatch)

Code Quality

• Fixed loadable() anti-pattern in 11 components (moved to module scope)
• Security review: all DB access confirmed read-only (0 write operations, 0 $out/$merge stages)
• 162 tests passing, 0 type errors, clean formatting

Stats

• 58 files changed, +2,903 / -887 lines
• 14 new files (cost feature: repository, API routes, atoms, components)

Full Compatibility: Tested against LibreChat MongoDB schema — no database modifications required.

v1.0.6

Merge pull request #3 from innFactory/fix/light-mode

Fix/light mode

v1.0.3

Initial Release