feat: 完成A线详细大纲

- 加入巫族首领摄司的设定（开放祖庭、贡献值制度）
- 修正人族演化路径：底层献祭品→贡献值→祖庭核心→导演终局
- 修正终局之战逻辑：人族制造假情报，坐收渔利
- 修正刑天结局：至死都是巫族，战死沙场
- 修正九黎阙设定：后期配角，主动被寄生50年后自爆
- 核心主题：人族成长=否定血脉论

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

templates/sheding.json.template

@@ -0,0 +1,52 @@
+{
+  "worldview": {
+    "name": "世界名称",
+    "type": "世界观类型（奇幻/科幻/现实/历史等）",
+    "era": "时代背景",
+    "geography": "地理环境描述",
+    "technology_level": "科技/魔法水平"
+  },
+  "forces": [
+    {
+      "name": "势力名称",
+      "description": "势力描述",
+      "power_level": "力量等级",
+      "relationships": ["与其他势力的关系"]
+    }
+  ],
+  "magic_system": {
+    "exists": false,
+    "description": "魔法/能力系统描述（如果有）",
+    "rules": "系统规则说明"
+  },
+  "characters": [
+    {
+      "id": "char-001",
+      "name": "角色姓名",
+      "age": "年龄",
+      "gender": "性别",
+      "appearance": "外貌描述",
+      "personality": "性格特点",
+      "background": "背景故事",
+      "motivation": "动机与目标",
+      "speech_style": "说话风格",
+      "abilities": ["能力列表"],
+      "relationships": {
+        "char-002": "与另一角色的关系"
+      }
+    }
+  ],
+  "timeline": [
+    {
+      "event": "历史事件",
+      "period": "时期",
+      "impact": "对现在的影响"
+    }
+  ],
+  "culture": {
+    "social_structure": "社会结构",
+    "customs": "重要习俗",
+    "taboos": "禁忌",
+    "economy": "经济状况"
+  }
+}