PasswordChangeForm: tests the null/success/error/mismatch banner branches
plus the form action wiring.
FileSectionNew: tests the no-file/file-selected toggle, onfileParsed
callback invocation with the parsed metadata, the early-return when no
file is in the change event, and the suggestedTitle fallback path.
Eleven tests across two files. Both follow the UploadZone template (props,
File API synthetic input, vi.fn() callback spies).
Refs #496.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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