* feat: enhance loading spinner with progress indication and add warning for unplaced vacation days * feat: upgrade Angular dependencies to version 21 and implement new animation features - Updated Angular dependencies in package.json to version 21.x.x. - Added `provideAnimationsAsync` to app configuration for improved animation handling. - Refactored user input component to utilize a dynamic list of vacation days with animations. - Introduced a new `DayInput` component for managing individual vacation days. - Enhanced styling and animations for user input and day input components. - Updated calendar service to support new vacation day structure. - Adjusted tests to accommodate changes in component structure and dependencies. * feat: enhance vacation optimization logic and UI components * Fix signal immutability violations and cleanup unused code (#62) * Initial plan * fix: address PR review comments for signal immutability and cleanup Co-authored-by: THoguet <61246905+THoguet@users.noreply.github.com> --------- Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com> Co-authored-by: THoguet <61246905+THoguet@users.noreply.github.com> * fix: add --legacy-peer-deps for Angular 21 compatibility (#63) * Initial plan * fix: add --legacy-peer-deps to npm ci for Angular 21 compatibility Co-authored-by: THoguet <61246905+THoguet@users.noreply.github.com> --------- Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com> Co-authored-by: THoguet <61246905+THoguet@users.noreply.github.com> * Fix unit tests for VacDay[] type migration (#64) * Initial plan * fix: update unit tests to match VacDay[] type structure Co-authored-by: THoguet <61246905+THoguet@users.noreply.github.com> --------- Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com> Co-authored-by: THoguet <61246905+THoguet@users.noreply.github.com> --------- Co-authored-by: Copilot <198982749+Copilot@users.noreply.github.com>