feat: OpsxAPI v1.0 全协议接口工作台

- 六协议调试：HTTP/GraphQL/WebSocket/SSE/Socket.IO/MQTT
- 集合树/多标签/多环境变量/历史记录，localStorage 持久化
- 导入：OpenAPI 2/3/3.1、Postman、Apifox、Apipost、cURL、HAR、
  Insomnia、Hoppscotch、Markdown（自动识别，21 个单测覆盖）
- 导出：OpenAPI 3.0 JSON/YAML、Postman v2.1、Markdown 文档、
  全量备份；单请求生成 cURL/fetch/Python/Go 代码
- Gin 服务：HTTP 代理、NDJSON 流式代理（SSE 透传）、
  WebSocket 隧道（浏览器自定义握手 Header）
- 内置产品官网 /home 与用户文档站 /docs（SSR，随二进制交付）
- lucide 图标体系 + 品牌标识（Logo/favicon），明暗双主题
- 环境变量：彩色徽标切换器、管理弹窗、{{ 自动补全

apps/desktop/src-tauri/src/lib.rs

@@ -0,0 +1,136 @@
+use serde::{Deserialize, Serialize};
+use std::collections::HashMap;
+use std::time::{Duration, Instant};
+
+#[derive(Debug, Deserialize)]
+#[serde(rename_all = "camelCase")]
+struct BodySpec {
+    mode: String,
+    raw: Option<String>,
+}
+
+#[derive(Debug, Deserialize)]
+#[serde(rename_all = "camelCase")]
+struct HttpSpec {
+    method: String,
+    url: String,
+    #[serde(default)]
+    headers: HashMap<String, String>,
+    query: Option<HashMap<String, String>>,
+    body: Option<BodySpec>,
+    timeout_ms: Option<u64>,
+}
+
+#[derive(Debug, Serialize)]
+#[serde(rename_all = "camelCase")]
+struct HttpResult {
+    status: u16,
+    headers: HashMap<String, String>,
+    body: String,
+    time_ms: u128,
+    size: usize,
+}
+
+#[derive(Debug, Deserialize)]
+struct WsSpec {
+    url: String,
+    protocols: Option<Vec<String>>,
+    headers: Option<HashMap<String, String>>,
+}
+
+fn validate_http_url(raw: &str) -> Result<url::Url, String> {
+    let parsed = url::Url::parse(raw).map_err(|e| format!("invalid URL: {e}"))?;
+    match parsed.scheme() {
+        "http" | "https" => {}
+        _ => return Err("only http/https schemes are allowed".into()),
+    }
+    match parsed.host_str().unwrap_or("").to_ascii_lowercase().as_str() {
+        "169.254.169.254" | "metadata.google.internal" => {
+            return Err("blocked metadata host".into())
+        }
+        _ => {}
+    }
+    Ok(parsed)
+}
+
+#[tauri::command]
+async fn http_send(spec: HttpSpec) -> Result<HttpResult, String> {
+    let mut url = validate_http_url(&spec.url)?;
+    if let Some(query) = &spec.query {
+        let mut pairs = url.query_pairs_mut();
+        for (key, value) in query {
+            pairs.append_pair(key, value);
+        }
+    }
+
+    let method = reqwest::Method::from_bytes(spec.method.as_bytes())
+        .map_err(|e| format!("invalid method: {e}"))?;
+    let timeout = Duration::from_millis(spec.timeout_ms.unwrap_or(30_000));
+    let client = reqwest::Client::builder()
+        .timeout(timeout)
+        .build()
+        .map_err(|e| e.to_string())?;
+    let mut request = client.request(method, url);
+    for (key, value) in spec.headers {
+        request = request.header(&key, &value);
+    }
+    if let Some(body) = spec.body {
+        if body.mode != "none" {
+            request = request.body(body.raw.unwrap_or_default());
+        }
+    }
+
+    let started = Instant::now();
+    let response = request.send().await.map_err(|e| e.to_string())?;
+    let status = response.status().as_u16();
+    let headers = response
+        .headers()
+        .iter()
+        .map(|(k, v)| (k.to_string(), v.to_str().unwrap_or("").to_string()))
+        .collect();
+    let bytes = response.bytes().await.map_err(|e| e.to_string())?;
+    let size = bytes.len();
+    let body = String::from_utf8_lossy(&bytes).into_owned();
+    Ok(HttpResult {
+        status,
+        headers,
+        body,
+        time_ms: started.elapsed().as_millis(),
+        size,
+    })
+}
+
+#[tauri::command]
+async fn ws_connect(spec: WsSpec) -> Result<String, String> {
+    let _ = (&spec.protocols, &spec.headers);
+    // TODO(week2): hold WebSocket sessions in managed state and emit messages.
+    Err(format!(
+        "WebSocket native tunnel is not implemented yet for {} (use browser WS in MVP)",
+        spec.url
+    ))
+}
+
+#[tauri::command]
+async fn ws_send(session_id: String, data: String) -> Result<(), String> {
+    let _ = (session_id, data);
+    Err("WebSocket native send is a Week 2 stub".into())
+}
+
+#[tauri::command]
+async fn ws_close(session_id: String) -> Result<(), String> {
+    let _ = session_id;
+    Ok(())
+}
+
+#[cfg_attr(mobile, tauri::mobile_entry_point)]
+pub fn run() {
+    tauri::Builder::default()
+        .invoke_handler(tauri::generate_handler![
+            http_send,
+            ws_connect,
+            ws_send,
+            ws_close
+        ])
+        .run(tauri::generate_context!())
+        .expect("error while running OpsxAPI desktop");
+}

apps/desktop/src-tauri/src/main.rs

@@ -0,0 +1,5 @@
+#![cfg_attr(not(debug_assertions), windows_subsystem = "windows")]
+
+fn main() {
+    opsxapi_lib::run();
+}