## QA PASSED Verified with Playwright automated testing on http://localhost:4007. **All tests passed:** - Tags field is now a MultiSelectDropdown button (not text input) - Dropdown opens correctly on click - Search input is present and functional - No console errors **Screenshots captured:** - /tmp/TRCKR-451-2-detail-modal.png - Shows Tags dropdown button - /tmp/TRCKR-451-3-dropdown-open.png - Shows dropdown opened with search See QA report document: c1c35d5e-7d05-4ec1-b365-67ad338a8094 **Verdict: APPROVED** - Implementation works as intended.

## Changes Implemented Replaced the comma-separated Tags text input with a MultiSelectDropdown component in the project detail modal. ### Files Modified 1. **server/routes/web.py** (lines 1294-1342) - Added code to collect all unique tags from existing projects with usage counts - Pass `all_tags` and `frequent_tags` to the template context 2. **server/templates/modals/project_detail.html** - Replaced text input (lines 46-49) with MultiSelectDropdown button - Added JavaScript IIFE to initialize MultiSelectDropdown with current project tags - Updated `checkForChanges()` to detect tag dropdown changes - Updated `saveProjectChanges()` to collect tags from MultiSelectDropdown ### Testing - Verified project detail page loads with tags dropdown - Verified tags data is correctly passed from backend (`ALL_PROJECT_TAGS`, `FREQUENT_PROJECT_TAGS`, `currentTags`) - Verified count badge displays correctly (shows number of tags) - Backend PATCH endpoint already handles comma-separated tags string ### Implementation Pattern Copied the pattern from `project_form.html` for consistency with the new project creation flow.