chore(audit): axe harness and notes template for UX audit

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

docs/superpowers/specs/2026-07-02-ux-audit-notes/TEMPLATE.md

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+# Journey N: <name> — audit notes
+
+**Pages visited:** <paths>
+**Viewports:** 390×844, 1440×900
+
+## Task attempt log
+<What was attempted, step by step, and where time/attention went. Note seconds-to-goal where measurable.>
+
+## Friction points
+For each:
+- **F<N>. <short title>**
+  - Evidence: <screenshot filename(s), observed behaviour, axe rule id if applicable>
+  - Criterion violated: <heuristic / WCAG SC / mobile standard / task obstruction>
+  - Argument: <why this hurts a parent completing the task>
+  - Severity guess: <P0/P1/P2/P3 — provisional, finalized in synthesis>
+
+## Works well — keep
+- <observation, with why it works>
+
+## Axe results
+- <path> @ <viewport>: <violationCount> violations — <ids with impact>
+
+## Manual WCAG spot checks
+- Touch targets ≥24px on interactive elements: <pass/fail + examples>
+- Keyboard: tab order, focus visibility (desktop only): <pass/fail + examples>
+- Zoom 200% text reflow (desktop only): <pass/fail>
+
+## Screenshots
+- <filename>: <what it shows>