Release v0.2.0: Context Resilience, AskUserQuestion, /design-systems

* Add context resilience: file-backed state, incremental writing, auto-recovery

Prevents "prompt too long" crashes from killing sessions by persisting work
to disk incrementally instead of relying on conversation memory.

Changes:
- pre-compact.sh: dumps session state before context compression
- session-start.sh: detects active.md for crash recovery
- session-stop.sh: archives and clears active.md on clean shutdown
- context-management.md: file-backed state as primary strategy
- 9 agents updated with incremental section writing protocol
  (game-designer, systems-designer, economy-designer, narrative-director,
   level-designer, world-builder, writer, art-director, audio-director)
- CLAUDE.md: trimmed redundant imports (10 → 5) to reduce token overhead
- design-docs.md rule: enforces incremental writing pattern
- .gitignore: excludes ephemeral session state files
- directory-structure.md: documents session-state/ and session-logs/
- COLLABORATIVE-DESIGN-PRINCIPLE.md: documents incremental writing pattern

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

* Add AskUserQuestion integration across collaborative protocols

Explicitly reference the AskUserQuestion tool in all collaborative agent
definitions, protocol templates, team orchestrator skills, and the master
principle doc. Introduces the Explain-then-Capture pattern: agents write
full expert analysis in conversation, then call AskUserQuestion with
concise labels to capture decisions via structured UI.

26 files updated:
- 3 protocol templates (design, leadership, implementation)
- 14 agent definitions (10 design + 3 leadership + writer)
- 8 orchestrator skills (brainstorm + 7 team-*)
- 1 master principle doc (COLLABORATIVE-DESIGN-PRINCIPLE.md)

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

* Add /design-systems skill: concept-to-GDD decomposition workflow

Bridges the gap between game concept and per-system design documents.
Professional studios use systems enumeration + dependency sorting between
concept and feature docs — skipping this step is one of the most expensive
mistakes (systems discovered during production cost 5-10x more to add).

New files:
- .claude/skills/design-systems/SKILL.md — 7-phase orchestration skill
  (enumerate systems, map dependencies, assign priorities, write GDDs)
- .claude/docs/templates/systems-index.md — master tracking template

Flow integration (7 existing skills updated):
- brainstorm, start, setup-engine, design-review, gate-check,
  project-stage-detect, game-concept template all reference /design-systems
  at the appropriate workflow touchpoints

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

* Fix cross-platform bugs, add missing tool permissions, and update docs for v0.2.0

Hooks: fix \s → [[:space:]] in grep -E fallbacks (3 files), fix detect-gaps.sh
empty-variable bug, fix log-agent.sh field name (agent_name → agent_type),
harden validate-push.sh with explicit $MATCHED_BRANCH, convert for-in loops
to while-read for space-safe iteration, add POSIX head -n syntax, increase
PreCompact timeout, widen session-stop log window.

Skills: add AskUserQuestion to 10 skills and TodoWrite to 8 multi-phase skills.
Fix project-stage-detect template/output paths, tech-artist → technical-artist.

Docs: add /design-systems to all references (README, quick-start, workflow guide,
skills-reference), update skill count 35 → 36, remove stale AI artifacts from
COLLABORATIVE-DESIGN-PRINCIPLE.md, add AskUserQuestion note to examples README.

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

---------

Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>

.claude/hooks/validate-commit.sh

@@ -12,7 +12,7 @@ INPUT=$(cat)
 if command -v jq >/dev/null 2>&1; then
     COMMAND=$(echo "$INPUT" | jq -r '.tool_input.command // empty')
 else
-    COMMAND=$(echo "$INPUT" | grep -oE '"command"\s*:\s*"[^"]*"' | sed 's/"command"\s*:\s*"//;s/"$//')
+    COMMAND=$(echo "$INPUT" | grep -oE '"command"[[:space:]]*:[[:space:]]*"[^"]*"' | sed 's/"command"[[:space:]]*:[[:space:]]*"//;s/"$//')
 fi
 
 # Only process git commit commands
@@ -31,7 +31,7 @@ WARNINGS=""
 # Check design documents for required sections
 DESIGN_FILES=$(echo "$STAGED" | grep -E '^design/gdd/')
 if [ -n "$DESIGN_FILES" ]; then
-    for file in $DESIGN_FILES; do
+    while IFS= read -r file; do
         if [[ "$file" == *.md ]] && [ -f "$file" ]; then
             for section in "Overview" "Detailed" "Edge Cases" "Dependencies" "Acceptance Criteria"; do
                 if ! grep -qi "$section" "$file"; then
@@ -39,7 +39,7 @@ if [ -n "$DESIGN_FILES" ]; then
                 fi
             done
         fi
-    done
+    done <<< "$DESIGN_FILES"
 fi
 
 # Validate JSON data files -- block invalid JSON
@@ -54,7 +54,7 @@ if [ -n "$DATA_FILES" ]; then
         fi
     done
 
-    for file in $DATA_FILES; do
+    while IFS= read -r file; do
         if [ -f "$file" ]; then
             if [ -n "$PYTHON_CMD" ]; then
                 if ! "$PYTHON_CMD" -m json.tool "$file" > /dev/null 2>&1; then
@@ -65,32 +65,32 @@ if [ -n "$DATA_FILES" ]; then
                 echo "WARNING: Cannot validate JSON (python not found): $file" >&2
             fi
         fi
-    done
+    done <<< "$DATA_FILES"
 fi
 
 # Check for hardcoded gameplay values in gameplay code
 # Uses grep -E (POSIX extended) instead of grep -P (Perl) for cross-platform compatibility
 CODE_FILES=$(echo "$STAGED" | grep -E '^src/gameplay/')
 if [ -n "$CODE_FILES" ]; then
-    for file in $CODE_FILES; do
+    while IFS= read -r file; do
         if [ -f "$file" ]; then
             if grep -nE '(damage|health|speed|rate|chance|cost|duration)[[:space:]]*[:=][[:space:]]*[0-9]+' "$file" 2>/dev/null; then
                 WARNINGS="$WARNINGS\nCODE: $file may contain hardcoded gameplay values. Use data files."
             fi
         fi
-    done
+    done <<< "$CODE_FILES"
 fi
 
 # Check for TODO/FIXME without assignee -- uses grep -E instead of grep -P
 SRC_FILES=$(echo "$STAGED" | grep -E '^src/')
 if [ -n "$SRC_FILES" ]; then
-    for file in $SRC_FILES; do
+    while IFS= read -r file; do
         if [ -f "$file" ]; then
             if grep -nE '(TODO|FIXME|HACK)[^(]' "$file" 2>/dev/null; then
                 WARNINGS="$WARNINGS\nSTYLE: $file has TODO/FIXME without owner tag. Use TODO(name) format."
             fi
         fi
-    done
+    done <<< "$SRC_FILES"
 fi
 
 # Print warnings (non-blocking) and allow commit