feat: 接入 mnote web tree shell 与主页链路整理

- 增加 mnote-web tree/command 支持与前端 MnoteWebTreeShell 集成
- 调整 sidebar、documents、runtime config 与 dev/prod server 配套逻辑
- 补充 homepage/tree shell smoke 脚本并更新 harness 进度文件

rust/crates/mnote-web/src/routes/bridge.rs

@@ -73,13 +73,13 @@ fn workspace_query_payload(
     }
 }
 
-fn execute_bridge_query(
+async fn execute_bridge_query(
     config: &AppConfig,
     context: &RequestContext,
     workspace_id: &str,
     query: RuntimeQueryEnvelopeWire,
 ) -> Result<Value, WebError> {
-    execute_runtime_query_via_convex(config, context, Some(workspace_id), query)
+    execute_runtime_query_via_convex(config, context, Some(workspace_id), query).await
 }
 
 pub async fn workspace(
@@ -95,7 +95,8 @@ pub async fn workspace(
         &context,
         &effective_workspace_id,
         workspace_query_payload(&effective_workspace_id, &query),
-    )?;
+    )
+    .await?;
     Ok(ok_response(&context, result))
 }
 
@@ -119,7 +120,8 @@ pub async fn request(
                 "commandId": query.command_id,
             }),
         },
-    )?;
+    )
+    .await?;
     Ok(ok_response(&context, result))
 }
 
@@ -143,7 +145,8 @@ pub async fn trace(
                 "commandId": query.command_id,
             }),
         },
-    )?;
+    )
+    .await?;
     Ok(ok_response(&context, result))
 }
 
@@ -155,10 +158,6 @@ mod tests {
     use tower::util::ServiceExt;
 
     fn app() -> axum::Router {
-        std::env::set_var(
-            "MNOTE_WEB_QUERY_FIXTURES_JSON",
-            r#"{"sidebar:datasetList":{"documents":[{"id":"page_root","workspace_id":"ws_demo","title":"工作区首页","parent_id":null,"sort_order":0,"is_starred":true,"is_template":false,"created_at":"2026-04-16T00:00:00Z","updated_at":"2026-04-16T00:00:00Z"},{"id":"page_child","workspace_id":"ws_demo","title":"子页面","parent_id":"page_root","sort_order":1,"is_starred":false,"is_template":false,"created_at":"2026-04-16T00:00:00Z","updated_at":"2026-04-16T00:00:00Z"}]},"bridgeLogs:listWorkspaceOverview":{"workspace_id":"ws_demo","command_logs":[{"command_id":"cmd_1","request_id":"req_1","status":"applied","created_at":"2026-04-16T00:00:00Z"}],"domain_events":[{"command_id":"cmd_1","status":"published","created_at":"2026-04-16T00:00:00Z"}],"next_cursor":null,"has_more":false,"filters":{"command_status":null,"event_status":null,"target_page_id":null,"target_block_id":null,"aggregate_type":null,"aggregate_id":null},"generated_at":"2026-04-16T00:00:00Z"}}"#,
-        );
         build_app(AppState::new(AppConfig {
             service_name: "mnote-web".into(),
             service_version: "0.1.0".into(),
@@ -168,6 +167,8 @@ mod tests {
             convex_url: None,
             convex_admin_key: None,
             allow_dev_fixtures: true,
+            query_fixtures_json: Some(r#"{"sidebar:datasetList":{"documents":[{"id":"page_root","workspace_id":"ws_demo","title":"工作区首页","parent_id":null,"sort_order":0,"is_starred":true,"is_template":false,"created_at":"2026-04-16T00:00:00Z","updated_at":"2026-04-16T00:00:00Z"},{"id":"page_child","workspace_id":"ws_demo","title":"子页面","parent_id":"page_root","sort_order":1,"is_starred":false,"is_template":false,"created_at":"2026-04-16T00:00:00Z","updated_at":"2026-04-16T00:00:00Z"}]},"bridgeLogs:listWorkspaceOverview":{"workspace_id":"ws_demo","command_logs":[{"command_id":"cmd_1","request_id":"req_1","status":"applied","created_at":"2026-04-16T00:00:00Z"}],"domain_events":[{"command_id":"cmd_1","status":"published","created_at":"2026-04-16T00:00:00Z"}],"next_cursor":null,"has_more":false,"filters":{"command_status":null,"event_status":null,"target_page_id":null,"target_block_id":null,"aggregate_type":null,"aggregate_id":null},"generated_at":"2026-04-16T00:00:00Z"}}"#.into()),
+            mutation_fixtures_json: None,
             dev_user_id: "dev-user".into(),
             dev_user_name: "开发用户".into(),
             dev_user_email: "dev@mnote.local".into(),