feat: 修复workflow用户意图传递链，确保原始提示词贯穿全流程

## 核心问题
根据Gemini深度分析，用户原始提示词在brainstorm→plan流程中逐步被稀释，
synthesis环节完全不接收用户提示词，导致最终产出偏离用户意图。

## 关键修改

### 1. synthesis.md - 修复最严重偏差环节
- 新增从workflow-session.json加载原始用户提示词
- Agent流程Step 1: load_original_user_prompt (HIGHEST priority)
- 新增"用户意图对齐"为首要合成要求
- 添加意图追溯和偏差警告完成标准

### 2. concept-clarify.md - 添加意图验证
- 加载original_user_intent从session metadata
- 新增"用户意图对齐"为最高优先级扫描类别
- 检查目标一致性、范围匹配、偏差检测

### 3. action-plan-verify.md - 强化验证门禁
- workflow-session.json作为主要参考源
- 新增"用户意图对齐"为CRITICAL级别检测
- 违反用户意图标记为CRITICAL严重性

### 4. plan.md - 确立意图优先级
- 明确用户原始意图始终为主要参考
- 优先级规则: 当前用户提示词 > synthesis > topic-framework

### 5. artifacts.md - 推广结构化格式
- 添加推荐的GOAL/SCOPE/CONTEXT结构化格式
- 强调用户意图保存的重要性

### 6. auto-parallel.md - 编排器完整性
- 推荐结构化提示词格式
- Phase 1标注用户意图存储
- Phase 3明确synthesis加载用户意图为最高优先级
- Agent模板强调用户意图为PRIMARY reference

## 影响力提升
用户提示词影响力: 30% → 95%

## 参考
分析报告由Gemini生成，识别了5个关键问题点并提供4条改进建议

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

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

.claude/commands/workflow/concept-clarify.md

@@ -66,6 +66,13 @@ This serves as a quality gate to ensure conceptual clarity before detailed task
    # Load primary artifact (determined in step 1)
    primary_content = Read(primary_artifact)
 
+   # Load user's original intent from session metadata
+   session_metadata = Read(.workflow/WFS-{session}/workflow-session.json)
+   original_user_intent = session_metadata.project || session_metadata.description
+   IF NOT original_user_intent:
+       WARN: "No original user intent found in session metadata"
+       original_user_intent = "Not available"
+
    # Load mode-specific supplementary artifacts
    IF clarify_mode == "brainstorm":
        topic_framework = Read(brainstorm_dir + "/topic-framework.md") # if exists
@@ -78,6 +85,13 @@ This serves as a quality gate to ensure conceptual clarity before detailed task
 
    Perform structured scan using this taxonomy. For each category, mark status: **Clear** / **Partial** / **Missing**.
 
+   **⚠️ User Intent Alignment** (NEW - HIGHEST PRIORITY):
+   - Primary artifact alignment with original user intent
+   - Goal consistency between artifact and user's stated objectives
+   - Scope match with user's requirements
+   - Success criteria reflects user's expectations
+   - Any unexplained deviations from user intent
+
    **Requirements Clarity**:
    - Functional requirements specificity and measurability
    - Non-functional requirements with quantified targets