重构: 后端编排拆解与DRY债收敛及命名纠偏

阶段1拆解: stream 系外移 stream_relay.rs,mod.rs 3048→2607,loop_body 502→83
技能收尾: regenerate/edit 回溯补技能,新增 read_skill 工具,项目级技能扫描
DRY: emit 双写 46 处收敛 event_bus 正典,KV 引号归一收口,LOCK-SLOW 33 处单行化
警示骨架 4→1 与压缩兜底 2→1,噪音目录档位收敛,truncate 同名陷阱消除
工具元数据落 ToolMeta 八维,7 张 match 表改查 registry,parity 测试锁等价
命名: is_noise_entry/teardown_round/probe_missed_terminal_event 等 6 项纠偏

src-tauri/src/commands/ai/audit/data_change.rs

@@ -11,33 +11,13 @@ use tauri::{AppHandle, Emitter};
 /// AR-11（方案A）：工具名 → (entity, action) 映射，用于数据变更联动刷新。
 ///
 /// 仅数据变更类工具返回 Some，其余工具返回 None（不 emit df-data-changed）。
-/// 映射规则：
-/// - create_project/create_idea/create_task → (project/idea/task, create)
-/// - update_project/update_task/update_idea → (..., update)
-/// - delete_project/delete_task/delete_idea/purge_project → (..., delete)
-/// - restore_project → (project, update)（恢复等同状态变更，前端走 update 刷新）
-/// - bind_directory → (project, update)（绑定目录属项目字段更新）
+/// 映射查注册元数据(entity_action 维度,DRY 债 #5 收敛),在 declare_tool! 注册点声明:
+/// create_*(project/idea/task, create)、update_*(..., update)、delete_*/purge_project
+/// (..., delete)、restore_project/bind_directory → (project, update)、advance_task →
+/// (task, update)(状态推进对齐 update_task)、write_file/patch_file → (file, update)。
 pub(super) fn data_change_for_tool(name: &str) -> Option<(&'static str, &'static str)> {
-    let (entity, action) = match name {
-        "create_project" => ("project", "create"),
-        "create_task" => ("task", "create"),
-        "create_idea" => ("idea", "create"),
-        "update_project" => ("project", "update"),
-        "update_task" => ("task", "update"),
-        "update_idea" => ("idea", "update"),
-        // advance_task 改任务状态 = 任务数据变更,MCP 走 HTTP 形态时让 GUI 前端
-        // listen df-data-changed 刷新任务列表(此前不在映射 → 状态推进后 GUI 不刷新)。
-        // 数据变更机制是 entity 级(无 id),映射到 (task, update) 对齐 update_task。
-        "advance_task" => ("task", "update"),
-        "delete_project" | "purge_project" => ("project", "delete"),
-        "delete_task" => ("task", "delete"),
-        "delete_idea" => ("idea", "delete"),
-        "restore_project" => ("project", "update"),
-        "bind_directory" => ("project", "update"),
-        "write_file" | "patch_file" => ("file", "update"),
-        _ => return None,
-    };
-    Some((entity, action))
+    crate::commands::ai::tool_registry::ensure_tool_meta_seeded();
+    df_ai::ai_tools::entity_action(name)
 }
 
 /// AR-11（方案A）：工具执行成功后按映射 emit "df-data-changed" { entity, action }。