Lukas
3095fa3313
Implement request deduplication to prevent multiple duplicate calls to GET /api/setup when multiple components mount simultaneously. The fix introduces: 1. New 'useSharedSetupStatus' hook with module-level caching - Shares a single in-flight request across all consumers - Implements 30-second cache TTL with cache invalidation - Notifies all subscribers when cache is invalidated 2. Refactored 'useSetup' hook to use shared cache - Internally uses useSharedSetupStatus for status checks - Calls invalidateSetupStatus() after successful setup submission - Maintains backward-compatible API 3. Updated components using setup status - SetupGuard and SetupPage automatically benefit from deduplication - No changes needed to consumer code 4. Updated tests - Mocked useSharedSetupStatus in component tests - Added comprehensive tests for cache behavior - All existing tests pass 5. Documentation updates - Added 'Request Deduplication & Shared Caching' section to Web-Development.md - Explains when and how to use shared hooks - Provides complete implementation example This eliminates wasted resources from duplicate API calls and potential race conditions where different requests return slightly different states. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>