feat(ux-optimization): live-site audit + core-objective prompts (ADR 0014)

[chrispezza]

Summary

• The full quill-router deliverable pass exposed two gaps in the just-shipped reverse pass: live-site auditing was deferred (ADR 0013) yet proved to be where code-suspected defects become measured findings — and where an entire render-only defect class lives (theme seams, orphans, missing responsive collapse) — and the strategy layer had no core_objective producer, leaving gap-analysis priorities anchored on an implicit objective.
• ADR 0014 (Accepted, owner-directed) resolves both: 07_objective_metrics (Tier 1, always; gap analysis now requires core_objective) and 10_live_site_audit (Tier 2, context_gated on deployed URL + browser tooling; measure-don't-eyeball rules, both themes/viewports, DOM verification before reporting blank renders). Gap analysis and optimization spec renumbered to 08/09; prompt name: fields unchanged so checks and registry history are unaffected.

Type of change

• Bug fix
• New feature (non-breaking)
• Breaking change
• Prompt content change
• Schema / compilation / validation change
• Documentation only
• Build / CI / tooling

Affected components

• Plugin (plugin/) — commands, skills, subagent
• Prompts (prompts/dev/)
• Compilation pipeline (scripts/compile_spec.py)
• Validation pipeline (scripts/validate_spec.py)
• Handoff generator (scripts/generate_handoff.py)
• MCP server (mcp/prompt-server/)
• Documentation (docs/, README.md, CLAUDE.md)
• CI (.github/workflows/)

Test plan

• checks/run_checks.py green — zero findings on new/renamed files (frontmatter, placeholders, dependency graph, word limits, filename convention all cover them automatically)
• Methodology field-tested before encoding: the live-site prompt's rules are transcribed from an actual browser audit of the pilot target (measurements, both themes, mobile, DOM-verification-of-blanks all exercised for real)
• CI green on this PR

ADR impact

• No ADR needed
• New ADR added: docs/adrs/0014-live-site-audit-and-objective.md (Accepted — owner directed the capability; resolves ADR 0013's deferred item)
• Existing ADR updated: —

Notes for reviewers

• The renames (07→08, 09) keep filename order matching execution order; name: fields are stable so word_limits.json keys and dependency checks are untouched.
• 10_live_site_audit is deliberately Tier 2: code-only runs stay valid, and headless environments lose nothing silently — the gate names both conditions.
• Pilot evidence for every rule is in the pilot notes' new live-site addendum.

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