refactor(web): use env for website url

Author: elianiva

apps/web-roo-code/.env.example

@@ -6,3 +6,6 @@ NEXT_PUBLIC_POSTHOG_HOST=https://us.i.posthog.com
 # Basin Form Endpoint for Static Form Submissions
 # Replace this with your actual Basin form endpoint (e.g., https://usebasin.com/f/your-form-id)
 NEXT_PUBLIC_BASIN_ENDPOINT=https://usebasin.com/f/your-form-id-here
+
+# Site URL used for canonical links and robots
+NEXT_PUBLIC_SITE_URL=https://roocode.com

apps/web-roo-code/src/lib/seo.ts

@@ -1,5 +1,7 @@
+const SITE_URL = process.env.NEXT_PUBLIC_SITE_URL ?? "https://roocode.com"
+
 export const SEO = {
-	url: "https://roocode.com",
+	url: SITE_URL,
 	name: "Roo Code",
 	title: "Roo Code – Your AI-Powered Dev Team in VS Code",
 	description: