Complete TEST-017, TEST-018, TEST-019 - 138 new tests
Add comprehensive test coverage for drag/drop, deck builder components, and pages:
TEST-017: Drag/drop edge cases (17 tests)
- Expand useDragDrop.spec.ts with edge case coverage
- DataTransfer fallback, touch events, invalid JSON handling
- Multiple drop targets and validation rules
TEST-018: Deck builder edge cases (75 tests)
- DeckActionButtons.spec.ts: save/cancel states, validation (19 tests)
- DeckHeader.spec.ts: name input, special chars, rapid typing (18 tests)
- DeckCardRow.spec.ts: quantity stepper, drag/drop integration (38 tests)
TEST-019: Page tests (44 tests)
- HomePage.spec.ts: auth states, navigation, accessibility (18 tests)
- CampaignPage.spec.ts: placeholder rendering, layout (8 tests)
- MatchPage.spec.ts: connection states, routing, cleanup (18 tests)
All 138 tests passing. Week 5 testing backlog complete.
Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>