chore: initial commit — leaudit-platform project skeleton

17-table PostgreSQL schema with full Chinese column comments,
FastAPI project structure (admin/common/modules),
DSL rule files, and schema migration scripts.

.gitignore

@@ -0,0 +1,62 @@
+# Python
+__pycache__/
+*.py[cod]
+*.egg-info/
+dist/
+build/
+*.egg
+.eggs/
+
+# Virtualenv
+venv/
+.venv/
+env/
+
+# IDE
+.vscode/
+.idea/
+*.swp
+*.swo
+*~
+
+# OS
+.DS_Store
+Thumbs.db
+
+# Environment & Secrets
+.env
+.env.*
+config/env.*
+app.toml
+!app.toml.example
+
+# Logs
+logs/
+*.log
+
+# Uploads / temp
+uploads/
+temp/
+tmp/
+
+# Celery
+celerybeat-schedule
+celerybeat.pid
+
+# Docker
+.docker/
+
+# Coverage
+htmlcov/
+.coverage
+.coverage.*
+coverage.xml
+*.cover
+.pytest_cache/
+
+# Rules cache
+rules/**/__pycache__/
+
+# Claude
+.claude/
+CLAUDE.md