fix: support mobile access when dev server binds to 0.0.0.0

- Vite server respects T3CODE_HOST for network binding
- Skip hardcoded VITE_WS_URL when host is not localhost, letting the
  client derive WS URL from window.location
- HMR auto-detects host when binding to 0.0.0.0

Author: 42tg

apps/web/vite.config.ts

@@ -6,6 +6,7 @@ import { defineConfig } from "vite";
 import pkg from "./package.json" with { type: "json" };
 
 const port = Number(process.env.PORT ?? 5733);
+const host = process.env.T3CODE_HOST ?? "localhost";
 const sourcemapEnv = process.env.T3CODE_WEB_SOURCEMAP?.trim().toLowerCase();
 
 const buildSourcemap =
@@ -42,14 +43,12 @@ export default defineConfig({
   },
   server: {
     port,
+    host,
     strictPort: true,
-    hmr: {
-      // Explicit config so Vite's HMR WebSocket connects reliably
-      // inside Electron's BrowserWindow. Vite 8 uses console.debug for
-      // connection logs — enable "Verbose" in DevTools to see them.
-      protocol: "ws",
-      host: "localhost",
-    },
+    hmr:
+      host === "localhost"
+        ? { protocol: "ws", host: "localhost" }
+        : { protocol: "ws" },
   },
   build: {
     outDir: "dist",

turbo.json

@@ -11,7 +11,8 @@
     "T3CODE_NO_BROWSER",
     "T3CODE_HOME",
     "T3CODE_AUTH_TOKEN",
-    "T3CODE_DESKTOP_WS_URL"
+    "T3CODE_DESKTOP_WS_URL",
+    "T3CODE_HOST"
   ],
   "tasks": {
     "build": {