Set up AI dev environment for recordingtest (#2)

- CLAUDE.md with collaboration rules and Planner/Generator/Evaluator cycle
- .claude/ agents, commands, skills, hooks per Claude Code conventions
- Sprint Contracts for sut-prober, normalizer, recorder, player, diff-reporter
- SUT catalog (EG-BIM Modeler, 187 plugins) and .gitignore excluding SUT tree
- PROGRESS.md / PLAN.md as shared agent handoff state
- Solution scaffold targeting sut-prober PoC

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

.claude/hooks/guard-sut-launch.sh

@@ -0,0 +1,16 @@
+#!/usr/bin/env bash
+# PreToolUse(Bash) hook: warn if the agent is about to launch the SUT binary
+# without going through the runner/player. Does not block; just informs.
+set -e
+
+input=$(cat)
+cmd=$(echo "$input" | jq -r '.tool_input.command // ""')
+
+if echo "$cmd" | grep -qi 'EG-BIM Modeler\.exe'; then
+  jq -n '{
+    hookSpecificOutput: {
+      hookEventName: "PreToolUse",
+      additionalContext: "⚠ SUT 실행 감지: EG-BIM Modeler.exe 는 player/runner 를 통해서만 실행하세요. sut-explorer 는 정적 분석만 허용됩니다."
+    }
+  }'
+fi