fix(start.sh): add missing fi after UV bootstrap block

The UV install conditional was never closed, which caused 'unexpected
end of file' from bash -n and broke the macOS/Linux startup path.

Document in ChangelogModal BUG_FIXES (2026-03-26).

Made-with: Cursor

frontend/src/components/ChangelogModal.tsx

@@ -41,6 +41,7 @@ const NEW_FEATURES = [
 ];
 
 const BUG_FIXES = [
+    "Fixed start.sh: added missing `fi` after UV install block — valid bash again; setup runs whether or not uv was preinstalled (2026-03-26)",
     "Stable entity IDs for GDELT & News popups — no more wrong popup after data refresh (PR #63)",
     "useCallback optimization for interpolation functions — eliminates redundant React re-renders on every 1s tick",
     "Restored missing GDELT and datacenter background refreshes in slow-tier loop",