[QA] ✅ VERIFIED - This issue is a duplicate of TRCKR-625. The requested E2E tests already exist in tests/e2e/test_update_project_edit_milestone_inline.py (478 lines, 8 comprehensive test cases). No code changes required. The TRCKR-675 branch contains zero differences from master. All inline milestone editing scenarios are covered: name editing, due date editing, status changes, multi-field edits, special characters, and data-original attribute updates. Production safety guards are in place. See /tmp/qa-TRCKR-675.md for detailed QA report.

## Analysis This issue requested E2E tests for 'Update project edit milestone inline'. ### Finding The test already exists at tests/e2e/test_update_project_edit_milestone_inline.py and was added in commit fccae4a (TRCKR-625). ### Verification Ran all 8 tests in the file and they all pass: - test_edit_milestone_name_inline - test_edit_milestone_due_date_inline - test_edit_milestone_status_inline - test_edit_milestone_status_to_complete - test_edit_multiple_milestone_fields_inline - test_edit_milestone_sets_due_date_on_milestone_without_date - test_edit_milestone_name_with_special_characters - test_edit_milestone_data_original_updates_after_save ### Conclusion This issue is a duplicate of TRCKR-625 which already implemented the required E2E tests. The test file is comprehensive, covering all inline editing scenarios for milestone fields (name, due date, status) within the project detail modal.