Add complete quote template functionality, enhanced outbound email sending, new quote statuses, and supporting infrastructure:
- Add new quote statuses (template, sending, mail_failed) with tailored UI styling for status pills
- Implement full template workflows: save real quotes as templates, create new quotes from existing templates
- Add support for custom quote dates and extended validity periods on generated PDF documents
- Build out improved email pipeline with persisted compose fields and retry functionality for failed sends
- Add attachment direction tracking to categorize inbound, outbound, and generated quote attachments
- Fix tooltip component to properly handle Radix `asChild` prop to avoid React DOM attribute errors
- Add comprehensive test coverage, schema migrations, and update sample test and production data
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