fix: add missing debug components and fix test imports

- Fix .gitignore to not ignore src/components/debug/ (was ignoring all debug/ dirs)
- Add missing DebugHoverWidget and other debug components to git
- Add missing TaskStartedEvent import in event_adapter.rs
- Add missing FieldKind import in forms.rs tests
- Add missing ApprovalState/ApprovalMode imports in event_loop.rs tests

Author: factorydroid

.gitignore

@@ -22,8 +22,9 @@ Thumbs.db
 *.log
 logs/
 
-# Debug
-debug/
+# Debug build artifacts (not source directories)
+/debug/
+**/target/debug/
 
 # Test coverage
 *.profraw