chore: migrate IDE environment from Kiro to Claude Code

- Add CLAUDE.md (root + ETL subdirectory + db subdirectory) consolidating all Kiro steering docs
- Add .mcp.json migrated from .kiro/settings/mcp.json (test DBs enabled, prod disabled)
- Add .claude/commands/ (audit, doc-sync, db-docs) replacing Kiro skills
- Add .claude/hooks/ (session_start, post_edit_audit, stop_audit_check) replacing Kiro hooks
- Add .claude/settings.json registering all hooks
- Add scripts/audit/prescan.py merging Kiro's audit_flagger + compliance_prescan
- Remove .kiro/agents, hooks, scripts, settings, skills, state (migrated or obsolete)
- Update .gitignore for Claude Code

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

.claude/hooks/post_edit_audit_reminder.py

@@ -0,0 +1,33 @@
+#!/usr/bin/env python3
+"""PostToolUse hook: 编辑高风险文件后提醒审计"""
+import json, re, sys
+
+try:
+    data = json.load(sys.stdin)
+except Exception:
+    sys.exit(0)
+
+fp = (data.get("tool_input") or {}).get("file_path", "")
+if not fp:
+    sys.exit(0)
+
+# 转相对路径
+rel = re.sub(r"^.*?NeoZQYY[/\\]", "", fp.replace("\\", "/"))
+
+HIGH_RISK = [
+    r"^apps/etl/connectors/feiqiu/(tasks|loaders|scd|orchestration|config|database|models|quality)/",
+    r"^apps/backend/app/(routers|services|auth|schemas)/",
+    r"^db/.*/migrations/.*\.sql$",
+    r"^db/.*/schemas/.*\.sql$",
+    r"^packages/shared/",
+]
+
+for p in HIGH_RISK:
+    if re.search(p, rel):
+        print(json.dumps({
+            "hookSpecificOutput": {
+                "hookEventName": "PostToolUse",
+                "additionalContext": f"[audit-reminder] 已编辑高风险文件: {rel} — 完成本轮改动后请执行 /audit"
+            }
+        }))
+        break