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/models/output.py

@@ -0,0 +1,41 @@
+"""Output task and output record models."""
+from datetime import datetime
+
+from sqlalchemy import Boolean, DateTime, ForeignKey, JSON, String, Text
+from sqlalchemy.orm import Mapped, mapped_column
+
+from app.models.base import Base, TimestampMixin, UUIDMixin
+
+
+class OutputTask(Base, UUIDMixin, TimestampMixin):
+    """Configurable output task (e.g. daily brief)."""
+
+    __tablename__ = "output_tasks"
+
+    name: Mapped[str] = mapped_column(String(128), nullable=False)
+    task_type: Mapped[str] = mapped_column(String(64), default="daily_brief", nullable=False, index=True)
+    skill_id: Mapped[str] = mapped_column(
+        ForeignKey("skills.id", ondelete="CASCADE"), nullable=False
+    )
+    schedule: Mapped[str | None] = mapped_column(String(128), nullable=True)  # cron expression
+    filter_config: Mapped[dict] = mapped_column(JSON, default=dict, nullable=False)
+    output_config: Mapped[dict] = mapped_column(JSON, default=dict, nullable=False)
+    is_active: Mapped[bool] = mapped_column(Boolean, default=True, nullable=False)
+    last_run_at: Mapped[datetime | None] = mapped_column(DateTime(timezone=True), nullable=True)
+    last_output_id: Mapped[str | None] = mapped_column(
+        ForeignKey("outputs.id", ondelete="SET NULL"), nullable=True
+    )
+
+
+class Output(Base, UUIDMixin, TimestampMixin):
+    """Generated output record."""
+
+    __tablename__ = "outputs"
+
+    output_task_id: Mapped[str | None] = mapped_column(
+        ForeignKey("output_tasks.id", ondelete="SET NULL"), nullable=True, index=True
+    )
+    content: Mapped[str | None] = mapped_column(Text, default="")
+    content_html: Mapped[str | None] = mapped_column(Text, default="")
+    references: Mapped[list] = mapped_column(JSON, default=list, nullable=False)
+    metadata: Mapped[dict] = mapped_column(JSON, default=dict, nullable=False)