- Introduced a new `quote_notes` field to store operator-facing free-text notes, distinct from the existing `notes` field used for rejection audit logs.
- Updated the quote processing page to include a `QuoteNoteCard` for editing and displaying the operator notes, ensuring seamless integration into the PDF generation flow.
- Enhanced the PDF generation logic to render the operator notes in a blue callout below the totals, improving visibility for end-users.
- Implemented a new service function `setQuoteNotes` to handle the saving of notes, including trimming whitespace and handling non-string inputs defensively.
- Added unit tests for the `setQuoteNotes` function to ensure correct behavior and data integrity when updating notes.
- Updated relevant types and documentation to reflect the new functionality and its intended use cases.