fix(growth,kernel,runtime): 穷尽审计后 7 项修复 — body 持久化 + embedding 死路径 + 安全加固

CRITICAL 修复:
- body_markdown 数据丢失: SkillManifest.body 字段 + serialize_skill_md 使用 body 替代默认内容
- embedding 检索死路径: rerank_entries 使用异步 index_entry_with_embedding + score_similarity_with_embedding (70/30 混合)
- try_write 静默丢失: pending_embedding 字段 + apply_pending_embedding() 延迟应用

IMPORTANT 修复:
- auto_mode 内存泄漏: add_pending 容量限制 100 + 溢出时丢弃最旧
- name_to_slug 空 ID: uuid fallback for empty/whitespace-only names
- compaction embedding 缺失: compaction GrowthIntegration 也接收 embedding
- kernel 未初始化警告: viking_configure_embedding warn log

验证: 934+ tests PASS, 0 failures

crates/zclaw-growth/src/retriever.rs

@@ -19,6 +19,8 @@ pub struct MemoryRetriever {
     config: RetrievalConfig,
     /// Semantic scorer for similarity computation
     scorer: RwLock<SemanticScorer>,
+    /// Pending embedding client (applied on next scorer access if try_write failed)
+    pending_embedding: std::sync::Mutex<Option<Arc<dyn crate::retrieval::semantic::EmbeddingClient>>>,
     /// Query analyzer
     analyzer: QueryAnalyzer,
     /// Memory cache
@@ -32,6 +34,7 @@ impl MemoryRetriever {
             viking,
             config: RetrievalConfig::default(),
             scorer: RwLock::new(SemanticScorer::new()),
+            pending_embedding: std::sync::Mutex::new(None),
             analyzer: QueryAnalyzer::new(),
             cache: MemoryCache::default_config(),
         }
@@ -244,19 +247,40 @@ impl MemoryRetriever {
 
         let mut scorer = self.scorer.write().await;
 
+        // Apply any pending embedding client
+        self.apply_pending_embedding(&mut scorer);
+
+        // Check if embedding is available for enhanced scoring
+        let use_embedding = scorer.is_embedding_available();
+
         // Index entries for semantic search
-        for entry in &entries {
-            scorer.index_entry(entry);
+        if use_embedding {
+            for entry in &entries {
+                scorer.index_entry_with_embedding(entry).await;
+            }
+        } else {
+            for entry in &entries {
+                scorer.index_entry(entry);
+            }
         }
 
         // Score each entry
-        let mut scored: Vec<(f32, MemoryEntry)> = entries
-            .into_iter()
-            .map(|entry| {
-                let score = scorer.score_similarity(query, &entry);
-                (score, entry)
-            })
-            .collect();
+        let mut scored: Vec<(f32, MemoryEntry)> = if use_embedding {
+            let mut results = Vec::with_capacity(entries.len());
+            for entry in entries {
+                let score = scorer.score_similarity_with_embedding(query, &entry).await;
+                results.push((score, entry));
+            }
+            results
+        } else {
+            entries
+                .into_iter()
+                .map(|entry| {
+                    let score = scorer.score_similarity(query, &entry);
+                    (score, entry)
+                })
+                .collect()
+        };
 
         // Sort by score (descending), then by importance and access count
         scored.sort_by(|a, b| {
@@ -420,7 +444,8 @@ impl MemoryRetriever {
     /// Configure embedding client for semantic similarity
     ///
     /// Stores the client for lazy application on first scorer use.
-    /// Safe to call from non-async contexts.
+    /// If the scorer lock is busy, the client is stored as pending
+    /// and applied on the next successful lock acquisition.
     pub fn set_embedding_client(
         &self,
         client: Arc<dyn crate::retrieval::semantic::EmbeddingClient>,
@@ -429,7 +454,20 @@ impl MemoryRetriever {
             *scorer = SemanticScorer::with_embedding(client);
             tracing::info!("[MemoryRetriever] Embedding client configured for semantic scorer");
         } else {
-            tracing::warn!("[MemoryRetriever] Scorer lock busy, embedding will be applied on next access");
+            tracing::warn!("[MemoryRetriever] Scorer lock busy, storing embedding client as pending");
+            if let Ok(mut pending) = self.pending_embedding.lock() {
+                *pending = Some(client);
+            }
+        }
+    }
+
+    /// Apply any pending embedding client to the scorer.
+    fn apply_pending_embedding(&self, scorer: &mut SemanticScorer) {
+        if let Ok(mut pending) = self.pending_embedding.lock() {
+            if let Some(client) = pending.take() {
+                *scorer = SemanticScorer::with_embedding(client);
+                tracing::info!("[MemoryRetriever] Pending embedding client applied to scorer");
+            }
         }
     }
 

crates/zclaw-kernel/src/kernel/evolution_bridge.rs

@@ -13,7 +13,7 @@ use zclaw_types::SkillId;
 /// Safety invariants:
 /// - `mode` is always `PromptOnly` (auto-generated skills cannot execute code)
 /// - `enabled` is `false` (requires one explicit positive feedback to activate)
-/// - `body_markdown` becomes the SKILL.md body content (stored by serialize_skill_md)
+/// - `body_markdown` is stored in `manifest.body` and persisted by `serialize_skill_md`
 pub fn candidate_to_manifest(candidate: &SkillCandidate) -> SkillManifest {
     let slug = name_to_slug(&candidate.name);
 
@@ -32,6 +32,7 @@ pub fn candidate_to_manifest(candidate: &SkillCandidate) -> SkillManifest {
         triggers: candidate.triggers.clone(),
         tools: candidate.tools.clone(),
         enabled: false,
+        body: Some(candidate.body_markdown.clone()),
     }
 }
 
@@ -48,7 +49,13 @@ fn name_to_slug(name: &str) -> String {
             result.push_str(&format!("{:x}", c as u32));
         }
     }
-    result.trim_matches('-').to_string()
+    let slug = result.trim_matches('-').to_string();
+    if slug.is_empty() {
+        // Fallback for empty or whitespace-only names
+        format!("skill-{}", &uuid::Uuid::new_v4().to_string()[..8])
+    } else {
+        slug
+    }
 }
 
 #[cfg(test)]

crates/zclaw-kernel/src/kernel/mod.rs

@@ -324,6 +324,9 @@ impl Kernel {
             if let Some(ref driver) = self.extraction_driver {
                 growth_for_compaction = growth_for_compaction.with_llm_driver(driver.clone());
             }
+            if let Some(ref embed_client) = self.embedding_client {
+                growth_for_compaction.configure_embedding(embed_client.clone());
+            }
             let mw = zclaw_runtime::middleware::compaction::CompactionMiddleware::new(
                 threshold,
                 zclaw_runtime::CompactionConfig::default(),

crates/zclaw-runtime/src/middleware/evolution.rs

@@ -50,7 +50,14 @@ impl EvolutionMiddleware {
 
     /// 添加一个待确认的进化事件
     pub async fn add_pending(&self, evolution: PendingEvolution) {
-        self.pending.write().await.push(evolution);
+        let mut pending = self.pending.write().await;
+        if pending.len() >= 100 {
+            tracing::warn!(
+                "[EvolutionMiddleware] Pending queue full (100), dropping oldest event"
+            );
+            pending.remove(0);
+        }
+        pending.push(evolution);
     }
 
     /// 获取并清除所有待确认事件

crates/zclaw-skills/src/loader.rs

@@ -191,6 +191,7 @@ pub fn parse_skill_md(content: &str) -> Result<SkillManifest> {
         triggers,
         tools,
         enabled: true,
+        body: None,
     })
 }
 
@@ -292,6 +293,7 @@ pub fn parse_skill_toml(content: &str) -> Result<SkillManifest> {
         triggers,
         tools,
         enabled: true,
+        body: None,
     })
 }
 

crates/zclaw-skills/src/registry.rs

@@ -241,6 +241,7 @@ impl SkillRegistry {
             // P2-19: Preserve tools field during update (was silently dropped)
             tools: if updates.tools.is_empty() { existing.tools } else { updates.tools },
             enabled: updates.enabled,
+            body: existing.body,
         };
 
         // Rewrite SKILL.md
@@ -318,10 +319,14 @@ fn serialize_skill_md(manifest: &SkillManifest) -> String {
     parts.push("---".to_string());
     parts.push(String::new());
 
-    // Body: use description as the skill content
-    parts.push(format!("# {}", manifest.name));
-    parts.push(String::new());
-    parts.push(manifest.description.clone());
+    // Body: use custom body if provided, otherwise default to "# {name}\n\n{description}"
+    if let Some(ref body) = manifest.body {
+        parts.push(body.clone());
+    } else {
+        parts.push(format!("# {}", manifest.name));
+        parts.push(String::new());
+        parts.push(manifest.description.clone());
+    }
 
     parts.join("\n")
 }

crates/zclaw-skills/src/semantic_router.rs

@@ -534,6 +534,7 @@ mod tests {
             triggers: triggers.into_iter().map(|s| s.to_string()).collect(),
             tools: vec![],
             enabled: true,
+            body: None,
         }
     }
 

crates/zclaw-skills/src/skill.rs

@@ -95,6 +95,9 @@ pub struct SkillManifest {
     /// Whether the skill is enabled
     #[serde(default = "default_enabled")]
     pub enabled: bool,
+    /// Custom body content for SKILL.md (overrides default "# {name}\n\n{description}")
+    #[serde(default, skip)]
+    pub body: Option<String>,
 }
 
 fn default_enabled() -> bool { true }

crates/zclaw-skills/src/wasm_runner.rs

@@ -468,6 +468,7 @@ mod tests {
             triggers: vec![],
             tools: vec![],
             enabled: true,
+            body: None,
         }
     }
 

crates/zclaw-skills/tests/runner_tests.rs

@@ -20,6 +20,7 @@ fn test_manifest(mode: SkillMode) -> SkillManifest {
         triggers: vec![],
         tools: vec![],
         enabled: true,
+        body: None,
     }
 }
 

crates/zclaw-skills/tests/skill_types_tests.rs

@@ -81,6 +81,7 @@ fn skill_manifest_full_roundtrip() {
         triggers: vec!["test trigger".to_string()],
         tools: vec!["bash".to_string()],
         enabled: true,
+        body: None,
     };
     let json = serde_json::to_string(&manifest).unwrap();
     let parsed: SkillManifest = serde_json::from_str(&json).unwrap();
@@ -126,6 +127,7 @@ fn skill_manifest_all_modes_roundtrip() {
             triggers: vec![],
             tools: vec![],
             enabled: true,
+            body: None,
         };
         let json = serde_json::to_string(&manifest).unwrap();
         let parsed: SkillManifest = serde_json::from_str(&json).unwrap();