fix(audit): Batch 7-9 dead_code 标注 + TODO 清理 + 文档同步

Batch 7: dead_code 标注统一 (16 处)
- crates/ 9 处: growth, kernel, pipeline, runtime, saas, skills
- src-tauri/ 7 处: classroom, intelligence, browser, mcp
- 统一格式: #[allow(dead_code)] // @reserved: <原因>

Batch 7+: EvolutionEngine L2/L3 10 个未使用 pub 函数
- 全部标注 @reserved: EvolutionEngine L2/L3, post-release integration

Batch 9: TODO → FUTURE 标记 (4 处)
- html.rs: template-based export
- nl_schedule.rs: LLM-assisted parsing
- knowledge/handlers.rs: category_id from upload
- personality_detector.rs: VikingStorage persistence

Batch 5+: Cargo.lock 更新 (serde_yaml_bw 迁移)

全量测试通过: 719 passed, 0 failed

crates/zclaw-growth/src/evolution_engine.rs

@@ -57,6 +57,7 @@ impl EvolutionEngine {
         }
     }
 
+    /// @reserved: EvolutionEngine L2/L3 feature, post-release integration
     /// Backward-compatible constructor
     /// 从 ExperienceStore 中提取共享的 VikingAdapter 实例
     pub fn from_experience_store(experience_store: Arc<ExperienceStore>) -> Self {
@@ -70,6 +71,7 @@ impl EvolutionEngine {
         }
     }
 
+    /// @reserved: EvolutionEngine L2/L3 feature, post-release integration
     pub fn with_config(mut self, config: EvolutionConfig) -> Self {
         self.config = config;
         self
@@ -94,12 +96,14 @@ impl EvolutionEngine {
             .await
     }
 
+    /// @reserved: EvolutionEngine L2/L3 feature, post-release integration
     /// L2 执行：为给定模式构建技能生成 prompt
     /// 返回 (prompt_string, pattern) 供上层通过 LLM 调用后 parse
     pub fn build_skill_prompt(&self, pattern: &AggregatedPattern) -> String {
         SkillGenerator::build_prompt(pattern)
     }
 
+    /// @reserved: EvolutionEngine L2/L3 feature, post-release integration
     /// L2 执行：解析 LLM 返回的技能 JSON 并进行质量门控
     pub fn validate_skill_candidate(
         &self,
@@ -113,6 +117,7 @@ impl EvolutionEngine {
         Ok((candidate, report))
     }
 
+    /// @reserved: EvolutionEngine L2/L3 feature, post-release integration
     /// 获取当前配置
     pub fn config(&self) -> &EvolutionConfig {
         &self.config
@@ -122,6 +127,7 @@ impl EvolutionEngine {
     // L3: 工作流进化
     // -----------------------------------------------------------------------
 
+    /// @reserved: EvolutionEngine L2/L3 feature, post-release integration
     /// L3: 从轨迹数据中提取重复的工具链模式
     pub fn analyze_trajectory_patterns(
         &self,
@@ -133,6 +139,7 @@ impl EvolutionEngine {
         WorkflowComposer::extract_patterns(trajectories)
     }
 
+    /// @reserved: EvolutionEngine L2/L3 feature, post-release integration
     /// L3: 为给定工具链模式构建工作流生成 prompt
     pub fn build_workflow_prompt(
         &self,
@@ -158,6 +165,7 @@ impl EvolutionEngine {
         update
     }
 
+    /// @reserved: EvolutionEngine L2/L3 feature, post-release integration
     /// 获取需要优化的进化产物
     pub async fn get_artifacts_needing_optimization(&self) -> Vec<String> {
         self.feedback
@@ -169,6 +177,7 @@ impl EvolutionEngine {
             .collect()
     }
 
+    /// @reserved: EvolutionEngine L2/L3 feature, post-release integration
     /// 获取建议归档的进化产物
     pub async fn get_artifacts_to_archive(&self) -> Vec<String> {
         self.feedback
@@ -180,6 +189,7 @@ impl EvolutionEngine {
             .collect()
     }
 
+    /// @reserved: EvolutionEngine L2/L3 feature, post-release integration
     /// 获取推荐产物
     pub async fn get_recommended_artifacts(&self) -> Vec<String> {
         self.feedback