修复: aichat P0 三项（AR-2 新建对话守卫 + AR-3 审批卡片可读化 + AR-4 create_project 双审）

- AR-2 ai_conversation_create 加 generating 守卫（clear 前，防审批态新建清空 session 致 generating 永不复位卡死）
- AR-3 audit.rs build_approval_reason 按 9 工具特化拼对象名（id/field/path/title/name）+ ToolCard resultSummary 补 restore/purge case + ARG_LABEL_MAP id 加友好标签 + i18n 双语补 4 key
- AR-4 create_project schema 加 path/stack + handler 有 path 时合并绑定（spawn_blocking 探测栈，复用 bind_directory 逻辑，消除双审双 API）
- cargo check / vue-tsc 0 error
- 审查 boundary 全误判（并行同工作区 git diff 污染），主代理独立核查三任务全正确

src-tauri/src/commands/ai/tool_registry.rs

@@ -144,8 +144,11 @@ pub fn build_ai_tool_registry(db: &Arc<Database>) -> AiToolRegistry {
         })},
     );
     registry.register(
-        "create_project", "创建新项目",
-        df_ai::ai_tools::object_schema(vec![("name", "string", true), ("description", "string", false)]),
+        "create_project", "创建新项目，可选传 path/stack 一步完成创建+绑定目录（无需再调 bind_directory）",
+        df_ai::ai_tools::object_schema(vec![
+            ("name", "string", true), ("description", "string", false),
+            ("path", "string", false), ("stack", "string", false),
+        ]),
         RiskLevel::Medium,
         { let db = db.clone(); Box::new(move |args: serde_json::Value| {
             let db = db.clone();
@@ -161,7 +164,42 @@ pub fn build_ai_tool_registry(db: &Arc<Database>) -> AiToolRegistry {
                 };
                 let id = record.id.clone();
                 repo.insert(record).await?;
-                Ok(serde_json::json!({ "id": id, "name": name, "status": "planning" }))
+                // path 缺省:保持原行为(仅创建,不绑定)
+                let path_opt = args.get("path").and_then(|v| v.as_str()).filter(|s| !s.is_empty());
+                if let Some(path) = path_opt {
+                    // 绑定逻辑复用自 bind_directory handler(下文):目录校验 + 防重复绑定 + spawn_blocking 探测技术栈
+                    // TODO: 抽公共绑定闭包/函数供 create_project 与 bind_directory 共用(当前内联以收敛改动范围)
+                    let dir = std::path::Path::new(path);
+                    if !dir.is_dir() {
+                        anyhow::bail!("目录不存在: {path}");
+                    }
+                    let target = df_project::scan::normalize_path(path);
+                    let projects = repo.list_active().await?;
+                    for proj in &projects {
+                        if proj.id != id {
+                            if let Some(pp) = &proj.path {
+                                if df_project::scan::normalize_path(pp) == target {
+                                    anyhow::bail!("目录已被项目「{}」绑定", proj.name);
+                                }
+                            }
+                        }
+                    }
+                    // stack:AI 提供则用,否则探测(detect_stack 内含多次同步 fs IO,必须 spawn_blocking)
+                    let stack = if let Some(s) = args.get("stack").and_then(|v| v.as_str()).filter(|s| !s.is_empty()) {
+                        s.split(',').map(|t| t.trim().to_string()).filter(|t| !t.is_empty()).collect::<Vec<String>>()
+                    } else {
+                        let dir_buf = std::path::PathBuf::from(path);
+                        tokio::task::spawn_blocking(move || df_project::scan::detect_stack(&dir_buf))
+                            .await
+                            .map_err(|e| anyhow::anyhow!("技术栈探测任务失败: {e}"))??
+                    };
+                    let stack_json = serde_json::to_string(&stack)?;
+                    repo.update_field(&id, "path", path).await?;
+                    repo.update_field(&id, "stack", &stack_json).await?;
+                    Ok(serde_json::json!({ "id": id, "name": name, "status": "planning", "path": path, "stack": stack, "bound": true }))
+                } else {
+                    Ok(serde_json::json!({ "id": id, "name": name, "status": "planning" }))
+                }
             })
         })},
     );