Task creation/update responses were using UTC time for kanban column
categorization, causing tasks to incorrectly appear as overdue when
the server had passed midnight UTC but the user's local time was still
the previous day.
Changes:
- Add timezone-aware response functions (NewTaskResponseWithTime, etc.)
- Pass userNow from middleware to all task service methods
- Update handlers to use timezone-aware time from X-Timezone header
- Update tests to pass the now parameter
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
c51f1ce34a