新增: Phase3阶段2 emit双写全接入(D2全19变体)

chat.rs 19 + audit/mod.rs 12 + guard.rs 3 + stream_recv.rs 2 + agentic/mod.rs 7(emit-only 补全,原11已落地)。每处 app.emit 前端 + publish_event tunnel 双路独立(emit 不删)。D2 全 19 变体透传 EventBus 供 tunnel subscriber 透传 miniapp。cargo EXIT=0。

src-tauri/src/commands/ai/agentic/mod.rs

@@ -354,11 +354,14 @@ async fn stream_one_provider(
                     candidate.name, delay.as_millis(), total_retry, max_retries + 1,
                 );
 
-                let _ = app_handle.emit("ai-chat-event", AiChatEvent::AiStreamRetry {
+                let ev = AiChatEvent::AiStreamRetry {
                     attempt: total_retry as u32,
                     max_attempts: (max_retries + 1) as u32,
                     conversation_id: Some(conv_id.to_string()),
-                });
+                };
+                let _ = app_handle.emit("ai-chat-event", ev.clone());
+                // L3 emit 双写:tunnel subscriber(阶段2)透传 miniapp
+                let _ = app_handle.state::<AppState>().ai_event_bus.publish_event(ev);
 
                 tokio::time::sleep(delay).await;
                 continue;
@@ -861,9 +864,12 @@ pub(crate) async fn run_agentic_loop(
 
             if should_compress {
                 // emit 压缩开始 + 置位防重入 + 读 active 克隆(不改 status)。
-                let _ = app_handle.emit("ai-chat-event", AiChatEvent::AiCompressing {
+                let ev = AiChatEvent::AiCompressing {
                     conversation_id: Some(conv_id.clone()),
-                });
+                };
+                let _ = app_handle.emit("ai-chat-event", ev.clone());
+                // L3 emit 双写:tunnel subscriber(阶段2)透传 miniapp
+                let _ = app_handle.state::<AppState>().ai_event_bus.publish_event(ev);
                 let (active_msgs, lang) = {
                     let mut session = session_arc.lock().await;
                     let conv = session.conv(&conv_id);
@@ -923,10 +929,13 @@ pub(crate) async fn run_agentic_loop(
                             pre_tokens = pre_compress_tokens,
                             "[ai] 自动压缩成功,摘要已插首位"
                         );
-                        let _ = app_handle.emit("ai-chat-event", AiChatEvent::AiCompressed {
+                        let ev = AiChatEvent::AiCompressed {
                             conversation_id: Some(conv_id.clone()),
                             summary,
-                        });
+                        };
+                        let _ = app_handle.emit("ai-chat-event", ev.clone());
+                        // L3 emit 双写:tunnel subscriber(阶段2)透传 miniapp
+                        let _ = app_handle.state::<AppState>().ai_event_bus.publish_event(ev);
                     }
                     Ok(None) => {
                         // 保护区外无 active 可压缩(已全 compressed/archived)→ noop,仅复位 is_compressing。
@@ -973,11 +982,14 @@ pub(crate) async fn run_agentic_loop(
                                 );
                             }
                         }
-                        let _ = app_handle.emit("ai-chat-event", AiChatEvent::AiError {
+                        let ev = AiChatEvent::AiError {
                             error: format!("自动上下文压缩失败,已降级为普通裁剪: {}", e),
                             error_type: Some(ErrorType::Unknown),
                             conversation_id: Some(conv_id.clone()),
-                        });
+                        };
+                        let _ = app_handle.emit("ai-chat-event", ev.clone());
+                        // L3 emit 双写:tunnel subscriber(阶段2)透传 miniapp
+                        let _ = app_handle.state::<AppState>().ai_event_bus.publish_event(ev);
                     }
                 }
             }
@@ -1488,9 +1500,12 @@ pub(crate) async fn run_agentic_loop(
         save_conversation(&session_arc, &db, &conv_id, Some(&usage), Some(&resolved_model), true).await;
         // 暂停态保持 generating=true(防其他 send 抢占,仿审批),disarm guard 跳过 Drop 兜底复位
         guard.disarm();
-        let _ = app_handle.emit("ai-chat-event", AiChatEvent::AiMaxRoundsReached {
+        let ev = AiChatEvent::AiMaxRoundsReached {
             conversation_id: Some(conv_id.clone()),
-        });
+        };
+        let _ = app_handle.emit("ai-chat-event", ev.clone());
+        // L3 emit 双写:tunnel subscriber(阶段2)透传 miniapp
+        let _ = app_handle.state::<AppState>().ai_event_bus.publish_event(ev);
         return; // generating 保持 true,等 ai_continue_loop / ai_stop_loop
     }
 
@@ -1629,13 +1644,16 @@ pub(crate) async fn try_continue_agent_loop(
                 Some(cid) => cid,
                 None => conv_id.to_string(),
             };
-            let _ = app.emit("ai-chat-event", AiChatEvent::AiCompleted {
+            let ev = AiChatEvent::AiCompleted {
                 total_tokens: 0,
                 prompt_tokens: 0,
                 completion_tokens: 0,
                 incomplete: None,
                 conversation_id: Some(emit_conv_id),
-            });
+            };
+            let _ = app.emit("ai-chat-event", ev.clone());
+            // L3 emit 双写:tunnel subscriber(阶段2)透传 miniapp
+            let _ = app.state::<AppState>().ai_event_bus.publish_event(ev);
         }
         return;
     }
@@ -1713,13 +1731,16 @@ pub(crate) async fn try_continue_agent_loop(
     };
     if !still_generating {
         tracing::info!(conv_id = %conv_id, "[ai] try_continue 终止:spawn 前重检 generating 已被 stop 复位,补发 AiCompleted");
-        let _ = app.emit("ai-chat-event", AiChatEvent::AiCompleted {
+        let ev = AiChatEvent::AiCompleted {
             total_tokens: 0,
             prompt_tokens: 0,
             completion_tokens: 0,
             incomplete: None,
             conversation_id: Some(conv_id_owned.clone()),
-        });
+        };
+        let _ = app.emit("ai-chat-event", ev.clone());
+        // L3 emit 双写:tunnel subscriber(阶段2)透传 miniapp
+        let _ = app.state::<AppState>().ai_event_bus.publish_event(ev);
         return;
     }