feat: Evolution Engine Phase 3-5 — WorkflowComposer+FeedbackCollector+EvolutionMiddleware+反馈闭环

Phase 3:
- EvolutionMiddleware (priority 78): 管家对话中注入进化确认提示
- GrowthIntegration.check_evolution() API 串入

Phase 4:
- WorkflowComposer: 轨迹工具链模式聚类 + Pipeline YAML prompt 构建 + JSON 解析
- EvolutionEngine.analyze_trajectory_patterns() L3 入口

Phase 5:
- FeedbackCollector: 反馈信号收集 + 信任度管理 + 推荐(Optimize/Archive/Promote)
- EvolutionEngine 反馈闭环方法: submit_feedback/get_artifacts_needing_optimization

新增 12 个测试（111→123），全 workspace 701 测试通过。

crates/zclaw-growth/src/lib.rs

@@ -71,6 +71,8 @@ pub mod pattern_aggregator;
 pub mod skill_generator;
 pub mod quality_gate;
 pub mod evolution_engine;
+pub mod workflow_composer;
+pub mod feedback_collector;
 
 // Re-export main types for convenience
 pub use types::{
@@ -109,6 +111,11 @@ pub use pattern_aggregator::{AggregatedPattern, PatternAggregator};
 pub use skill_generator::{SkillCandidate, SkillGenerator};
 pub use quality_gate::{QualityGate, QualityReport};
 pub use evolution_engine::{EvolutionConfig, EvolutionEngine};
+pub use workflow_composer::{PipelineCandidate, ToolChainPattern, WorkflowComposer};
+pub use feedback_collector::{
+    EvolutionArtifact, FeedbackCollector, FeedbackEntry, FeedbackSignal,
+    RecommendedAction, Sentiment, TrustRecord, TrustUpdate,
+};
 
 /// Growth system configuration
 #[derive(Debug, Clone)]