Add GET /api/warehouse/filters endpoint that returns distinct workshop
codes/names and handler names from both pressure gauge and thermometer
contract tables, filtering out noise values from the workshop column.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Install mssql (SQL Server driver) and lucide-react (icon library)
for the warehouse query system.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
