feat: add PM2 configuration and deployment setup for remote server

- Add Makefile with convenient PM2 commands for development and production
- Add ecosystem.config.js with production/staging/dev environment configurations
- Add comprehensive PM2-GUIDE.md documentation for deployment
- Update package.json with PM2-specific npm scripts
- Fix Chrome extension URL handling to omit standard ports (443/80)
- Hide embedding model and semantic engine sections in popup UI

app/chrome-extension/common/env-config.ts

@@ -15,12 +15,47 @@ console.log('Environment Config Loaded:', {
   REMOTE_SERVER_PORT,
 });
 
+// Helper function to determine if we should include port in URL
+const shouldIncludePort = (host: string, port: string): boolean => {
+  // For localhost/127.0.0.1, always include port
+  if (host === '127.0.0.1' || host === 'localhost') {
+    return true;
+  }
+
+  // For HTTPS domains using standard port 443, don't include port
+  if (port === '443') {
+    return false;
+  }
+
+  // For HTTP domains using standard port 80, don't include port
+  if (port === '80') {
+    return false;
+  }
+
+  // For all other cases, include the port
+  return true;
+};
+
+// Helper function to determine protocol
+const getProtocol = (port: string): { ws: string; http: string } => {
+  if (port === '443') {
+    return { ws: 'wss', http: 'https' };
+  }
+  return { ws: 'ws', http: 'http' };
+};
+
+// Build URLs based on whether port should be included
+const includePort = shouldIncludePort(REMOTE_SERVER_HOST, REMOTE_SERVER_PORT);
+const protocols = getProtocol(REMOTE_SERVER_PORT);
+
+const baseUrl = includePort ? `${REMOTE_SERVER_HOST}:${REMOTE_SERVER_PORT}` : REMOTE_SERVER_HOST;
+
 // Remote Server Configuration
 export const REMOTE_SERVER_CONFIG = {
   HOST: REMOTE_SERVER_HOST,
   PORT: REMOTE_SERVER_PORT,
-  WS_URL: `ws://${REMOTE_SERVER_HOST}:${REMOTE_SERVER_PORT}/chrome`,
-  HTTP_URL: `http://${REMOTE_SERVER_HOST}:${REMOTE_SERVER_PORT}/mcp`,
+  WS_URL: `${protocols.ws}://${baseUrl}/chrome`,
+  HTTP_URL: `${protocols.http}://${baseUrl}/mcp`,
 } as const;
 
 // Default connection settings

app/chrome-extension/entrypoints/popup/App.vue

@@ -384,7 +384,7 @@
         </div>
       </div>
 
-      <div class="section">
+      <div class="section" style="display: none">
         <h2 class="section-title">{{ getMessage('semanticEngineLabel') }}</h2>
         <div class="semantic-engine-card">
           <div class="semantic-engine-status">
@@ -416,7 +416,7 @@
         </div>
       </div>
 
-      <div class="section">
+      <div class="section" style="display: none">
         <h2 class="section-title">{{ getMessage('embeddingModelLabel') }}</h2>
 
         <ProgressIndicator