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>

.claude/commands/sheding.md

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+---
+description: sheding
+---
+```mermaid
+flowchart TD
+    start_node_default([Start])
+    check_settings{AskUserQuestion:<br/>是否已有小说世界观设定？}
+    discuss_new[discuss-new]
+    read_existing[read-existing]
+    discuss_direction[discuss-direction]
+    modify_settings[modify-settings]
+    create_new_settings[create-new-settings]
+    worldview_check[worldview-check]
+    end_node_default([End])
+
+    start_node_default --> check_settings
+    check_settings -->|无设定| discuss_new
+    check_settings -->|有设定| read_existing
+    read_existing --> discuss_direction
+    discuss_direction --> modify_settings
+    modify_settings --> worldview_check
+    discuss_new --> create_new_settings
+    create_new_settings --> worldview_check
+    worldview_check --> end_node_default
+```
+
+## Workflow Execution Guide
+
+Follow the Mermaid flowchart above to execute the workflow. Each node type has specific execution methods as described below.
+
+### Execution Methods by Node Type
+
+- **Rectangle nodes**: Execute Sub-Agents using the Task tool
+- **Diamond nodes (AskUserQuestion:...)**: Use the AskUserQuestion tool to prompt the user and branch based on their response
+- **Diamond nodes (Branch/Switch:...)**: Automatically branch based on the results of previous processing (see details section)
+- **Rectangle nodes (Prompt nodes)**: Execute the prompts described in the details section below
+
+### AskUserQuestion Node Details
+
+Ask the user and proceed based on their choice.
+
+#### check_settings(是否已有小说世界观设定？)
+
+**Selection mode:** Single Select (branches based on the selected option)
+
+**Options:**
+- **无设定**: 暂无任何设定，需要从零开始创作
+- **有设定**: 已有部分或完整的世界观设定需要完善