Add DELETE /api/exports/{id} endpoint with cascade delete, trash icon
buttons on both the exports list and export detail pages, and disable
browser caching for static files to prevent stale JS issues.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Add list/search, equipment/drawing number lookups, PDF hash tracking,
cut template lookup, DXF zip download, and wire up FileStorageService
and static files in Program.cs.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
