Initial commit: Daily News App

企業內部新聞彙整與分析系統
- 自動新聞抓取 (Digitimes, 經濟日報, 工商時報)
- AI 智慧摘要 (OpenAI/Claude/Ollama)
- 群組管理與訂閱通知
- 已清理 Python 快取檔案

🤖 Generated with [Claude Code](https://claude.com/claude-code)

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

app/models/group.py

@@ -0,0 +1,82 @@
+"""
+群組與關鍵字資料模型
+"""
+from datetime import datetime
+from sqlalchemy import String, Boolean, ForeignKey, Text, JSON, Enum as SQLEnum, UniqueConstraint, Index, DECIMAL
+from sqlalchemy.orm import Mapped, mapped_column, relationship
+from typing import Optional, List
+import enum
+
+from app.db.session import Base
+
+
+class GroupCategory(str, enum.Enum):
+    """群組分類"""
+    INDUSTRY = "industry"
+    TOPIC = "topic"
+
+
+class Group(Base):
+    """群組表"""
+    __tablename__ = "groups"
+    
+    id: Mapped[int] = mapped_column(primary_key=True, autoincrement=True)
+    name: Mapped[str] = mapped_column(String(100), nullable=False, comment="群組名稱")
+    description: Mapped[Optional[str]] = mapped_column(Text, comment="群組描述")
+    category: Mapped[GroupCategory] = mapped_column(SQLEnum(GroupCategory), nullable=False, comment="分類")
+    ai_background: Mapped[Optional[str]] = mapped_column(Text, comment="AI背景資訊設定")
+    ai_prompt: Mapped[Optional[str]] = mapped_column(Text, comment="AI摘要方向提示")
+    is_active: Mapped[bool] = mapped_column(Boolean, default=True, comment="是否啟用")
+    created_by: Mapped[Optional[int]] = mapped_column(ForeignKey("users.id"), comment="建立者ID")
+    created_at: Mapped[datetime] = mapped_column(default=datetime.utcnow)
+    updated_at: Mapped[datetime] = mapped_column(default=datetime.utcnow, onupdate=datetime.utcnow)
+    
+    # 關聯
+    keywords: Mapped[List["Keyword"]] = relationship(back_populates="group", cascade="all, delete-orphan")
+    article_matches: Mapped[List["ArticleGroupMatch"]] = relationship(back_populates="group", cascade="all, delete-orphan")
+    reports: Mapped[List["Report"]] = relationship(back_populates="group")
+    subscriptions: Mapped[List["Subscription"]] = relationship(back_populates="group", cascade="all, delete-orphan")
+
+
+class Keyword(Base):
+    """關鍵字表"""
+    __tablename__ = "keywords"
+    __table_args__ = (
+        UniqueConstraint("group_id", "keyword", name="uk_group_keyword"),
+        Index("idx_keywords_keyword", "keyword"),
+    )
+    
+    id: Mapped[int] = mapped_column(primary_key=True, autoincrement=True)
+    group_id: Mapped[int] = mapped_column(ForeignKey("groups.id", ondelete="CASCADE"), nullable=False, comment="所屬群組ID")
+    keyword: Mapped[str] = mapped_column(String(100), nullable=False, comment="關鍵字")
+    is_active: Mapped[bool] = mapped_column(Boolean, default=True)
+    created_at: Mapped[datetime] = mapped_column(default=datetime.utcnow)
+    
+    # 關聯
+    group: Mapped["Group"] = relationship(back_populates="keywords")
+
+
+class ArticleGroupMatch(Base):
+    """新聞-群組匹配關聯表"""
+    __tablename__ = "article_group_matches"
+    __table_args__ = (
+        UniqueConstraint("article_id", "group_id", name="uk_article_group"),
+        Index("idx_matches_group", "group_id"),
+    )
+    
+    id: Mapped[int] = mapped_column(primary_key=True, autoincrement=True)
+    article_id: Mapped[int] = mapped_column(ForeignKey("news_articles.id", ondelete="CASCADE"), nullable=False)
+    group_id: Mapped[int] = mapped_column(ForeignKey("groups.id", ondelete="CASCADE"), nullable=False)
+    matched_keywords: Mapped[Optional[list]] = mapped_column(JSON, comment="匹配到的關鍵字列表")
+    match_score: Mapped[Optional[float]] = mapped_column(DECIMAL(5, 2), comment="匹配分數")
+    created_at: Mapped[datetime] = mapped_column(default=datetime.utcnow)
+    
+    # 關聯
+    article: Mapped["NewsArticle"] = relationship(back_populates="group_matches")
+    group: Mapped["Group"] = relationship(back_populates="article_matches")
+
+
+# 避免循環引入
+from app.models.news import NewsArticle
+from app.models.report import Report
+from app.models.interaction import Subscription