[WIP] Add support for feedback notes in Forms

[Copilot]

• Create test file for FeedbackComments component
• Add tests for loading comments
• Add tests for adding comments
• Add tests for deleting comments
• Add tests for error handling
• Add tests for logged-in user restriction logic
• Run tests to verify all pass
• Fix linting issues
• Run full test suite to ensure no regressions
• Request code review

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[github-actions]

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