fix(growth): Evolution Engine 穷尽审计 3CRITICAL + 3HIGH 全部修复

C-01: ExperienceExtractor 接入 ExperienceStore
- GrowthIntegration.new() 创建 ExperienceExtractor 时注入 ExperienceStore
- 经验持久化路径打通：extract_combined → persist_experiences → ExperienceStore

C-02+C-03: 进化触发链路全链路接通
- create_middleware_chain() 注册 EvolutionMiddleware (priority 78)
- MemoryMiddleware 持有 Arc<EvolutionMiddleware> 共享引用
- after_completion 中调用 check_evolution() → 推送 PendingEvolution
- EvolutionMiddleware 在下次对话前注入进化建议到 system prompt

H-01: FeedbackCollector loaded 标志修复
- load() 失败时保留 loaded=false，下次 save 重试
- 日志级别 debug → warn

H-03: FeedbackCollector 内部可变性
- EvolutionEngine.feedback 改为 Arc<Mutex<FeedbackCollector>>
- submit_feedback() 从 &mut self → &self，支持中间件 &self 调用路径
- GrowthIntegration.initialize() 从 &mut self → &self

H-05: 删除空测试 test_parse_empty_response (无 assert)

H-06: infer_experiences_from_memories() fallback
- Outcome::Success → Outcome::Partial (反映推断不确定性)

crates/zclaw-runtime/src/growth.rs

@@ -13,7 +13,7 @@
 use std::sync::Arc;
 use zclaw_growth::{
     AggregatedPattern, CombinedExtraction, EvolutionConfig, EvolutionEngine,
-    ExperienceExtractor, GrowthTracker, InjectionFormat,
+    ExperienceExtractor, ExperienceStore, GrowthTracker, InjectionFormat,
     LlmDriverForExtraction, MemoryExtractor, MemoryRetriever, PromptInjector,
     RetrievalResult, UserProfileUpdater, VikingAdapter,
 };
@@ -79,14 +79,15 @@ impl GrowthIntegration {
         let retriever = MemoryRetriever::new(viking.clone());
         let injector = PromptInjector::new();
         let tracker = GrowthTracker::new(viking.clone());
-        let evolution_engine = Some(EvolutionEngine::new(viking));
+        let evolution_engine = Some(EvolutionEngine::new(viking.clone()));
 
         Self {
             retriever,
             extractor,
             injector,
             tracker,
-            experience_extractor: ExperienceExtractor::new(),
+            experience_extractor: ExperienceExtractor::new()
+                .with_store(Arc::new(ExperienceStore::new(viking))),
             profile_updater: UserProfileUpdater::new(),
             profile_store: None,
             evolution_engine,
@@ -120,10 +121,8 @@ impl GrowthIntegration {
     ///
     /// **注意**：FeedbackCollector 内部已实现 lazy-load（首次 save() 时自动加载），
     /// 所以此方法为可选优化 — 提前加载可避免首次反馈提交时的延迟。
-    /// 在中间件持有 GrowthIntegration 的场景中，由于 `&self` 限制无法调用此方法，
-    /// lazy-load 机制会兜底处理。
-    pub async fn initialize(&mut self) -> Result<()> {
-        if let Some(ref mut engine) = self.evolution_engine {
+    pub async fn initialize(&self) -> Result<()> {
+        if let Some(ref engine) = self.evolution_engine {
             match engine.load_feedback().await {
                 Ok(count) => {
                     if count > 0 {