feat(beautify): add tool definition and i18n strings

packages/shared/src/constants.ts

@@ -380,6 +380,14 @@ export const TOOLS: Tool[] = [
     icon: "Frame",
     route: "/border",
   },
+  {
+    id: "beautify",
+    name: "Beautify Screenshot",
+    description: "Add gradient backgrounds, device frames, shadows, and social media sizing",
+    category: "layout",
+    icon: "Sparkles",
+    route: "/beautify",
+  },
   // Format & Conversion
   {
     id: "svg-to-raster",

packages/shared/src/i18n/en.ts

@@ -167,6 +167,11 @@ export const en = {
       name: "Border & Frame",
       description: "Add borders, padding, rounded corners, and shadows with one-click presets",
     },
+    beautify: {
+      name: "Beautify Screenshot",
+      description:
+        "Add gradient backgrounds, device frames, shadows, and social media sizing to screenshots",
+    },
     "svg-to-raster": {
       name: "SVG to Raster",
       description: