This commit addresses 275 TypeScript compilation errors and improves type safety, code quality, and maintainability across the frontend codebase.
The following issues have been resolved:
- Standardized `translationId` to `number`
- Fixed missing properties on annotation types
- Resolved `tags` type mismatch
- Corrected `country` type mismatch
- Addressed date vs. string mismatches
- Fixed variable hoisting issues
- Improved server-side type safety
- Added missing null/undefined checks
- Fixed arithmetic operations on non-numbers
- Resolved `RefObject` type issues
Note: I was unable to verify the frontend changes due to local setup issues with the development server. The server would not start, and I was unable to run the Playwright tests.
