看板升级: GT v0.5.0(20期叙事结构全覆盖) + schema加字段方案 + git清理

- ground-truth v0.5.0: 补完10期narrative_structure标注(MiMo跑批+制片人审定)
- summarize.py: 修复无标注期次格式化崩溃
- 003_add_ai_labels.sql: episodes表加7列(6打标+1置信度)迁移文件
- episode.py: Model同步加7个Optional字段
- CLAUDE.md: 项目主控文件入库
- doco/deliverables: 20期终版文稿md入库
- doco/programs: 中间产物从git移除(本地保留), .gitignore统一管理
- note/寄存条: 两个子项目寄存条入库
- .gitignore: 补充doco中间产物/Excel锁文件/临时文件规则

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

backend/app/models/episode.py

@@ -9,12 +9,15 @@
 
 from datetime import date, datetime
 
+from typing import Any
+
 from sqlalchemy import Column
 from sqlalchemy import DateTime as SADateTime
 from sqlalchemy import Text
 from sqlalchemy import Boolean as SABoolean
 from sqlalchemy import Integer as SAInteger
 from sqlalchemy import Numeric as SANumeric
+from sqlalchemy.dialects.postgresql import JSONB
 from sqlalchemy.sql import func as sa_func
 from sqlmodel import Field, SQLModel
 
@@ -55,6 +58,17 @@ class Episode(SQLModel, table=True):
     # 责编备注
     notes: str | None = Field(default=None)
 
+    # ── AI 打标字段（看板升级 L2→L3）──
+    # 全部可空：旧数据不填，AI 打标 + 制片人审核后写入
+    # 枚举值在应用层校验，不加数据库 CHECK 约束
+    program_format: str | None = Field(default=None, max_length=20)          # 主题材(单选)
+    equipment_domain: Any | None = Field(default=None, sa_column=Column(JSONB))  # 装备域(多选)
+    scene_tags: Any | None = Field(default=None, sa_column=Column(JSONB))        # 场景标签(多选)
+    tech_tags: Any | None = Field(default=None, sa_column=Column(JSONB))         # 技术线标签(多选)
+    narrative_structure: str | None = Field(default=None, max_length=20)     # 叙事结构(单选)
+    opening_hook: str | None = Field(default=None, max_length=10)           # 开篇钩子(单选)
+    ai_label_confidence: str | None = Field(default=None, max_length=10)    # draft/reviewed/inferred
+
     created_at: datetime | None = Field(
         default=None,
         sa_column=Column(SADateTime(timezone=True), nullable=False, server_default=sa_func.now()),