Add v0.5.0: CCGS Skill Testing Framework, skill-improve, 4 new skills, director gate path fixes

- Add CCGS Skill Testing Framework: self-contained QA layer with 72 skill specs,
  49 agent specs, catalog.yaml, quality-rubric.md, templates, README, CLAUDE.md
- Add /skill-improve: test-fix-retest loop covering static + category checks
- Add 4 missing skills: /art-bible, /asset-spec, /day-one-patch, /security-audit
- Add /skill-test category mode (Phase 2D) with quality rubric evaluation
- Extend /skill-test audit to cover agent specs alongside skill specs
- Update all skill-test and skill-improve path refs to CCGS Skill Testing Framework/
- Remove stale tests/skills/ directory (superseded by CCGS Skill Testing Framework)
- Add director gate intensity modes (full/lean/solo) to gate-check and related skills

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

.claude/skills/playtest-report/SKILL.md

@@ -3,13 +3,17 @@ name: playtest-report
 description: "Generates a structured playtest report template or analyzes existing playtest notes into a structured format. Use this to standardize playtest feedback collection and analysis."
 argument-hint: "[new|analyze path-to-notes] [--review full|lean|solo]"
 user-invocable: true
-allowed-tools: Read, Glob, Grep, Write
+allowed-tools: Read, Glob, Grep, Write, Task, AskUserQuestion
 ---
 
 ## Phase 1: Parse Arguments
 
-Extract `--review [full|lean|solo]` if present and store as the review mode
-override for this run (see `.claude/docs/director-gates.md`).
+Resolve the review mode (once, store for all gate spawns this run):
+1. If `--review [full|lean|solo]` was passed → use that
+2. Else read `production/review-mode.txt` → use that value
+3. Else → default to `lean`
+
+See `.claude/docs/director-gates.md` for the full check pattern.
 
 Determine the mode:
 
@@ -112,6 +116,11 @@ Present the categorized list, then route:
 
 ## Phase 3b: Creative Director Player Experience Review
 
+**Review mode check** — apply before spawning CD-PLAYTEST:
+- `solo` → skip. Note: "CD-PLAYTEST skipped — Solo mode." Proceed to Phase 4 (save the report).
+- `lean` → skip (not a PHASE-GATE). Note: "CD-PLAYTEST skipped — Lean mode." Proceed to Phase 4 (save the report).
+- `full` → spawn as normal.
+
 After categorising findings, spawn `creative-director` via Task using gate **CD-PLAYTEST** (`.claude/docs/director-gates.md`).
 
 Pass: the structured report content, game pillars and core fantasy (from `design/gdd/game-concept.md`), the specific hypothesis being tested.