feat: Add custom server configuration fields (env vars, args, headers)

Cargo.toml

@@ -25,7 +25,7 @@ futures = "0.3"
 
 # Serialization
 serde = { version = "1.0", features = ["derive"] }
-serde_json = "1.0"
+serde_json = { version = "1.0", features = ["preserve_order"] }
 
 # Error handling
 anyhow = "1.0"

README.md

@@ -49,7 +49,8 @@ Add a server in McpMux and every client has it instantly. No files to edit.
 {
   "mcpServers": {
     "mcpmux": {
-      "url": "http://localhost:9315/mcp"
+      "type": "http",
+      "url": "http://localhost:45818/mcp"
     }
   }
 }

apps/desktop/src-tauri/src/commands/server.rs

@@ -133,6 +133,9 @@ pub async fn save_server_inputs(
     id: String,
     input_values: HashMap<String, String>,
     space_id: String,
+    env_overrides: Option<HashMap<String, String>>,
+    args_append: Option<Vec<String>>,
+    extra_headers: Option<HashMap<String, String>>,
 ) -> Result<InstalledServer, String> {
     let service_lock = app_service.read().await;
     let service = service_lock
@@ -142,7 +145,7 @@ pub async fn save_server_inputs(
     let space_uuid = uuid::Uuid::parse_str(&space_id).map_err(|e| e.to_string())?;
 
     service
-        .update_config(space_uuid, &id, input_values)
+        .update_config(space_uuid, &id, input_values, env_overrides, args_append, extra_headers)
         .await
         .map_err(|e| e.to_string())
 }

apps/desktop/src/App.tsx

@@ -413,6 +413,7 @@ function DashboardView() {
             <div className="relative">
               <pre className="bg-slate-900 text-slate-100 p-4 rounded-lg text-sm overflow-x-auto font-mono">
 {`"mcpmux": {
+  "type": "http",
   "url": "${gatewayStatus.url || 'http://localhost:3100'}/mcp"
 }`}
               </pre>
@@ -421,7 +422,7 @@ function DashboardView() {
                 size="sm"
                 className="absolute top-2 right-2"
                 onClick={async () => {
-                  const config = `"mcpmux": {\n  "url": "${gatewayStatus.url || 'http://localhost:3100'}/mcp"\n}`;
+                  const config = `"mcpmux": {\n  "type": "http",\n  "url": "${gatewayStatus.url || 'http://localhost:3100'}/mcp"\n}`;
                   await navigator.clipboard.writeText(config);
                   setExportSuccess('Config copied to clipboard!');
                   setTimeout(() => setExportSuccess(null), 2000);

apps/desktop/src/components/ConfigEditorModal.tsx

@@ -165,7 +165,7 @@ export function ConfigEditorModal({ spaceId, spaceName, onClose, onSaved }: Conf
         <div className="flex items-center justify-between p-4 border-b border-[rgb(var(--border))]">
           <div>
             <h3 className="text-lg font-semibold flex items-center gap-2">
-              Add Server Manually
+              Add Custom Server
             </h3>
             <p className="text-sm text-[rgb(var(--muted))]">
               Edit the JSON configuration for space: {spaceName}