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/app/api/v1/articles.py

@@ -0,0 +1,79 @@
+"""Articles router."""
+from fastapi import APIRouter, Depends, HTTPException, status
+from sqlalchemy import func, select
+from sqlalchemy.ext.asyncio import AsyncSession
+
+from app.api.deps import get_current_user, get_db
+from app.models.article import CleanedArticle
+from app.models.user import User
+from app.schemas.article import ArticleListParams, ArticleOut
+from app.schemas.common import MessageResponse, PaginatedResponse
+
+router = APIRouter(prefix="/articles", tags=["articles"])
+
+
+@router.get("", response_model=PaginatedResponse)
+async def list_articles(
+    params: ArticleListParams = Depends(),
+    db: AsyncSession = Depends(get_db),
+    current_user: User = Depends(get_current_user),
+):
+    """List cleaned articles with filters."""
+    query = select(CleanedArticle)
+
+    if params.feed_id:
+        query = query.where(CleanedArticle.feed_id == params.feed_id)
+    if params.category:
+        query = query.where(CleanedArticle.category == params.category)
+    if params.tag:
+        query = query.where(CleanedArticle.tags.contains([params.tag]))
+    if params.search:
+        query = query.where(
+            CleanedArticle.title.ilike(f"%{params.search}%")
+            | CleanedArticle.ai_summary.ilike(f"%{params.search}%")
+        )
+    if params.is_read is not None:
+        # CleanedArticle doesn't have is_read in current schema; placeholder
+        pass
+
+    # Count
+    count_query = select(func.count()).select_from(query.subquery())
+    total = (await db.execute(count_query)).scalar_one()
+
+    # Paginate
+    query = (
+        query.offset(params.skip)
+        .limit(params.limit)
+        .order_by(CleanedArticle.published_at.desc().nulls_last())
+    )
+    result = await db.execute(query)
+    items = result.scalars().all()
+
+    return {
+        "total": total,
+        "items": [ArticleOut.model_validate(item) for item in items],
+    }
+
+
+@router.get("/{article_id}", response_model=ArticleOut)
+async def get_article(
+    article_id: str,
+    db: AsyncSession = Depends(get_db),
+    current_user: User = Depends(get_current_user),
+):
+    """Get a single cleaned article."""
+    article = await db.get(CleanedArticle, article_id)
+    if not article:
+        raise HTTPException(status_code=status.HTTP_404_NOT_FOUND, detail="Article not found")
+    return ArticleOut.model_validate(article)
+
+
+@router.put("/{article_id}/read", response_model=MessageResponse)
+async def mark_article_read(
+    article_id: str,
+    db: AsyncSession = Depends(get_db),
+    current_user: User = Depends(get_current_user),
+):
+    """Mark an article as read (placeholder)."""
+    # In Phase 1, cleaned_articles doesn't have is_read field yet
+    return {"message": "Article marked as read"}