Successfully implemented table features (filtering, sorting, multi-select) across all entity tables. **Changes Made:** 1. **Multi-select checkboxes** added to all entity tables: - Projects: /Users/joe/gitea/trckr/server/templates/partials/projects_table.html (lines 5-7, 49-51) - Milestones: /Users/joe/gitea/trckr/server/templates/partials/milestones_table.html (lines 5-7, 35-37) - Documents: /Users/joe/gitea/trckr/server/templates/partials/documents_table.html (lines 5-7, 45-47) - Comments: /Users/joe/gitea/trckr/server/templates/partials/comments_table.html (lines 6-8, 46-48) - Attachments: /Users/joe/gitea/trckr/server/templates/partials/attachments_table.html (lines 5-7, 33-35) 2. **Column filtering** added to relevant columns: - Projects: Status and Tag filters - Milestones: Status filter - Documents: Type and Tag filters - Comments: Entity Type and Author filters - Attachments: Type filter 3. **JavaScript functions** added to /Users/joe/gitea/trckr/server/templates/base.html (lines 1903-2163): - Selection management functions for each entity type (getSelected*, toggleAll*, updateBulkToolbar*) - Header filter functions for each entity type (applyHeaderFilter*) 4. **Bug fix**: Added defensive null checks in all filter templates to prevent TypeError when filter parameters are None **Verification:** - Deployed to https://trckr.roboalch.com - Verified all entity tabs load correctly with new features - Projects, Milestones, Documents, Comments, and Attachments tables all show: - Checkbox column for multi-select - Filter icons on filterable columns - Sortable column headers with caret indicators All features match the issues table pattern for consistency across the application.