docs(openspec): add SDD artifact trail for recent alarm and EQ changes

Persist the exploration, proposal, spec, design, tasks, and
verify/archive reports produced during the multi-device EQ,
alarm-countdown, and notification-visual-polish SDD cycles.

openspec/changes/notification-visual-polish/state.yaml

@@ -0,0 +1,13 @@
+change: notification-visual-polish
+status: archived
+archived_at: 2026-07-02T18:55:00Z
+verdict: PASS WITH WARNINGS
+critical_issues: 0
+warning_count: 2
+automatable_tasks: 17/17
+manual_qa_tasks: 7 (unchecked, pending human review pre-merge)
+note: |
+  Change is archived and ready for PR submission. Phase 4 manual on-device QA
+  (icon legibility in status bar, color rendering) is documented as a pre-merge
+  human gate in task artifact. Both warnings are tied to this expected manual
+  verification, not implementation defects. No CRITICAL issues found.