Initial commit: RSS platform phase 1 skeleton with code review fixes

Features:
- FastAPI + SQLAlchemy 2.0 async + PostgreSQL/pgvector + Redis backend
- Vue 3 + TypeScript + Element Plus frontend
- JWT auth with access/refresh tokens and revocation
- Admin/member RBAC
- RSS feed CRUD and article listing
- Settings management with Fernet encryption for sensitive values
- Redis distributed lock service
- Alembic initial migration
- Docker Compose development environment

Fixes from code review:
- Fix DB session leak in dependency injection
- Restrict registration to admin only
- Add default admin password warning
- Implement JWT refresh tokens and jti blacklist
- Strengthen password policy
- Use func.count for pagination totals
- Replace NullPool with AsyncAdaptedQueuePool
- Remove init_db from lifespan to enforce alembic migrations
- Add request_id middleware and logging filter
- Fix vite.config.ts env loading
- Add frontend token refresh interceptor
- Add Vue error handler

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

backend/pyproject.toml

@@ -0,0 +1,70 @@
+[project]
+name = "rss-platform"
+version = "0.1.0"
+description = "模块化、工业化、AI 驱动的 RSS 信息处理平台"
+requires-python = ">=3.12"
+dependencies = [
+    "fastapi==0.115.0",
+    "uvicorn[standard]==0.30.0",
+    "sqlalchemy[asyncio]==2.0.31",
+    "asyncpg==0.29.0",
+    "alembic==1.13.2",
+    "psycopg2-binary==2.9.9",
+    "pydantic==2.8.2",
+    "pydantic-settings==2.3.4",
+    "python-jose[cryptography]==3.3.0",
+    "passlib[bcrypt]==1.7.4",
+    "cryptography==42.0.8",
+    "python-multipart==0.0.9",
+    "httpx==0.27.0",
+    "feedparser==6.0.11",
+    "beautifulsoup4==4.12.3",
+    "lxml==5.2.2",
+    "redis==5.0.7",
+    "celery==5.4.0",
+    "langdetect==1.0.9",
+    "prometheus-client==0.20.0",
+    "sentry-sdk==2.7.0",
+]
+
+[project.optional-dependencies]
+dev = [
+    "pytest==8.2.2",
+    "pytest-asyncio==0.23.7",
+    "aiosqlite==0.20.0",
+    "ruff==0.5.0",
+    "black==24.4.2",
+]
+
+[build-system]
+requires = ["setuptools>=61.0"]
+build-backend = "setuptools.build_meta"
+
+[tool.setuptools]
+py-modules = []
+
+[tool.ruff]
+line-length = 120
+target-version = "py312"
+
+[tool.ruff.lint]
+select = [
+    "E",  # pycodestyle errors
+    "F",  # Pyflakes
+    "I",  # isort
+    "N",  # pep8-naming
+    "W",  # pycodestyle warnings
+]
+
+[tool.ruff.format]
+quote-style = "double"
+indent-style = "space"
+
+[tool.pytest.ini_options]
+asyncio_mode = "auto"
+testpaths = ["tests"]
+pythonpath = ["."]
+
+[tool.black]
+line-length = 120
+target-version = ["py312"]