fix(v13): V13 审计 6 项修复 — TrajectoryRecorder注册 + industryStore接入 + 知识搜索 + webhook标注 + structured UI + persistent注释

FIX-01: TrajectoryRecorderMiddleware 注册到 create_middleware_chain() (@650优先级)
FIX-02: industryStore 接入 ButlerPanel 行业专长展示 + 自动拉取
FIX-03: 桌面端知识库搜索 saas-knowledge mixin + VikingPanel SaaS KB UI
FIX-04: webhook 迁移标注 deprecated + 添加 down migration 注释
FIX-05: Admin Knowledge 添加结构化数据 Tab (CRUD + 行浏览)
FIX-06: PersistentMemoryStore 精化 dead_code 标注 (完整迁移留后续)

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

crates/zclaw-memory/src/store.rs

@@ -21,6 +21,14 @@ impl MemoryStore {
         Ok(store)
     }
 
+    /// Get a clone of the underlying SQLite pool.
+    ///
+    /// Used by subsystems (e.g. `TrajectoryStore`) that need to share the
+    /// same database connection pool for their own tables.
+    pub fn pool(&self) -> SqlitePool {
+        self.pool.clone()
+    }
+
     /// Ensure the parent directory for the database file exists
     fn ensure_database_dir(database_url: &str) -> Result<()> {
         // Parse SQLite URL to extract file path