fix(growth,hands,kernel,desktop): Phase 1 用户可感知修复 — 6 项断链修复

Phase 1 修复内容:
1. Hand 执行前端字段映射 — instance_id → runId，修复 Hand 状态追踪
2. Heartbeat 痛点感知 — PAIN_POINTS_CACHE + VikingStorage 持久化 + 未解决痛点检查
3. Browser Hand 委托消息 — pending_execution → delegated_to_frontend + 中文摘要
4. 跨会话记忆检索增强 — 扩展 IdentityRecall 模式 26→43 + 弱身份信号检测 + 低结果 fallback
5. Twitter Hand 凭据持久化 — SetCredentials action + 文件持久化 + 启动恢复
6. Browser 测试修复 — 适配新的 delegated_to_frontend 响应格式

验证: cargo check ✅ | cargo test 912 PASS ✅ | tsc --noEmit ✅

crates/zclaw-growth/src/retrieval/query.rs

@@ -19,6 +19,8 @@ pub struct AnalyzedQuery {
     pub target_types: Vec<MemoryType>,
     /// Expanded search terms
     pub expansions: Vec<String>,
+    /// Whether weak identity signals were detected (personal pronouns, possessives)
+    pub weak_identity: bool,
 }
 
 /// Query intent classification
@@ -55,6 +57,8 @@ pub struct QueryAnalyzer {
     stop_words: HashSet<String>,
     /// Patterns indicating identity/personal recall queries
     identity_patterns: Vec<String>,
+    /// Weak identity signals (pronouns, possessives) that boost broad retrieval
+    weak_identity_indicators: Vec<String>,
 }
 
 impl QueryAnalyzer {
@@ -105,15 +109,33 @@ impl QueryAnalyzer {
             .map(|s| s.to_string())
             .collect(),
             identity_patterns: [
-                // Chinese identity recall patterns
-                "我是谁", "我叫什么", "我之前", "我告诉过你", "我之前告诉",
-                "还记得我", "你还记得", "我的名字", "我的身份", "我的信息",
-                "我的工作", "我在哪", "我的偏好", "我喜欢什么",
-                "关于我", "了解我", "记得我", "我之前说过",
+                // Chinese identity recall patterns — direct identity queries
+                "我是谁", "我叫什么", "我的名字", "我的身份", "我的信息",
+                "关于我", "了解我", "记得我",
+                // Chinese — cross-session recall ("what did we discuss before")
+                "我之前", "我告诉过你", "我之前告诉", "我之前说过",
+                "还记得我", "你还记得", "你记得吗", "记得之前",
+                "我们之前聊过", "我们讨论过", "我们聊过", "上次聊",
+                "之前说过", "之前告诉", "以前说过", "以前聊过",
+                // Chinese — preferences/settings queries
+                "我的偏好", "我喜欢什么", "我的工作", "我在哪",
+                "我的设置", "我的习惯", "我的爱好", "我的职业",
+                "我记得", "我想起来", "我忘了",
                 // English identity recall patterns
                 "who am i", "what is my name", "what do you know about me",
                 "what did i tell", "do you remember me", "what do you remember",
                 "my preferences", "about me", "what have i shared",
+                "remind me", "what we discussed", "my settings", "my profile",
+                "tell me about myself", "what did we talk about", "what was my",
+                "i mentioned before", "we talked about", "i told you before",
+            ]
+            .iter()
+            .map(|s| s.to_string())
+            .collect(),
+            // Weak identity signals — pronouns that hint at personal context
+            weak_identity_indicators: [
+                "我的", "我之前", "我们之前", "我们上次",
+                "my ", "i told", "i said", "we discussed", "we talked",
             ]
             .iter()
             .map(|s| s.to_string())
@@ -130,6 +152,10 @@ impl QueryAnalyzer {
         let is_identity = self.identity_patterns.iter()
             .any(|pattern| query_lower.contains(&pattern.to_lowercase()));
 
+        // Check for weak identity signals (personal pronouns, possessives)
+        let weak_identity = !is_identity && self.weak_identity_indicators.iter()
+            .any(|indicator| query_lower.contains(&indicator.to_lowercase()));
+
         let intent = if is_identity {
             QueryIntent::IdentityRecall
         } else {
@@ -145,6 +171,7 @@ impl QueryAnalyzer {
             intent,
             target_types,
             expansions,
+            weak_identity,
         }
     }
 
@@ -400,4 +427,48 @@ mod tests {
         // Chinese characters should be extracted
         assert!(!keywords.is_empty());
     }
+
+    #[test]
+    fn test_identity_recall_expanded_patterns() {
+        let analyzer = QueryAnalyzer::new();
+
+        // New Chinese patterns should trigger IdentityRecall
+        assert_eq!(analyzer.analyze("我们之前聊过什么").intent, QueryIntent::IdentityRecall);
+        assert_eq!(analyzer.analyze("你记得吗上次说的").intent, QueryIntent::IdentityRecall);
+        assert_eq!(analyzer.analyze("我的设置是什么").intent, QueryIntent::IdentityRecall);
+        assert_eq!(analyzer.analyze("我们讨论过这个话题").intent, QueryIntent::IdentityRecall);
+
+        // New English patterns
+        assert_eq!(analyzer.analyze("what did we talk about yesterday").intent, QueryIntent::IdentityRecall);
+        assert_eq!(analyzer.analyze("remind me what I said").intent, QueryIntent::IdentityRecall);
+        assert_eq!(analyzer.analyze("my settings").intent, QueryIntent::IdentityRecall);
+    }
+
+    #[test]
+    fn test_weak_identity_detection() {
+        let analyzer = QueryAnalyzer::new();
+
+        // Queries with "我的" but not matching full identity patterns
+        let analyzed = analyzer.analyze("我的项目进度怎么样了");
+        assert!(analyzed.weak_identity, "Should detect weak identity from '我的'");
+        assert_ne!(analyzed.intent, QueryIntent::IdentityRecall);
+
+        // Queries without personal signals should not trigger weak identity
+        let analyzed = analyzer.analyze("解释一下Rust的所有权");
+        assert!(!analyzed.weak_identity);
+
+        // Full identity pattern should NOT set weak_identity (it's already IdentityRecall)
+        let analyzed = analyzer.analyze("我是谁");
+        assert!(!analyzed.weak_identity);
+        assert_eq!(analyzed.intent, QueryIntent::IdentityRecall);
+    }
+
+    #[test]
+    fn test_no_false_identity_on_general_queries() {
+        let analyzer = QueryAnalyzer::new();
+
+        // General queries should not trigger identity recall or weak identity
+        assert_ne!(analyzer.analyze("什么是机器学习").intent, QueryIntent::IdentityRecall);
+        assert!(!analyzer.analyze("什么是机器学习").weak_identity);
+    }
 }

crates/zclaw-growth/src/retriever.rs

@@ -106,6 +106,25 @@ impl MemoryRetriever {
             )
             .await?;
 
+        let total_found = preferences.len() + knowledge.len() + experience.len();
+
+        // Fallback: if keyword-based retrieval returns too few results AND weak identity
+        // signals are present (e.g. "我的xxx", "我之前xxx"), supplement with broad retrieval
+        // to ensure cross-session memories are found even without exact keyword match.
+        let (preferences, knowledge, experience) = if total_found < 3 && analyzed.weak_identity {
+            tracing::info!(
+                "[MemoryRetriever] Weak identity + low results ({}), supplementing with broad retrieval",
+                total_found
+            );
+            let broad = self.retrieve_broad_identity(agent_id).await?;
+            let prefs = Self::merge_results(preferences, broad.preferences);
+            let knows = Self::merge_results(knowledge, broad.knowledge);
+            let exps = Self::merge_results(experience, broad.experience);
+            (prefs, knows, exps)
+        } else {
+            (preferences, knowledge, experience)
+        };
+
         let total_tokens = preferences.iter()
             .chain(knowledge.iter())
             .chain(experience.iter())
@@ -153,6 +172,7 @@ impl MemoryRetriever {
             intent: crate::retrieval::query::QueryIntent::General,
             target_types: vec![],
             expansions: vec![],
+            weak_identity: false,
         };
         let search_queries = self.analyzer.generate_search_queries(&analyzed_for_search);
 
@@ -198,6 +218,20 @@ impl MemoryRetriever {
         Ok(filtered)
     }
 
+    /// Merge keyword-based and broad-retrieval results, deduplicating by URI.
+    /// Keyword results take precedence (appear first), broad results fill gaps.
+    fn merge_results(keyword_results: Vec<MemoryEntry>, broad_results: Vec<MemoryEntry>) -> Vec<MemoryEntry> {
+        let mut seen = std::collections::HashSet::new();
+        let mut merged = Vec::new();
+
+        for entry in keyword_results.into_iter().chain(broad_results.into_iter()) {
+            if seen.insert(entry.uri.clone()) {
+                merged.push(entry);
+            }
+        }
+        merged
+    }
+
     /// Rerank entries using semantic similarity
     async fn rerank_entries(
         &self,