fix: improve social previews and shared icons (#52)

Add share metadata and a real product social card so OpenSEO links render with a stronger preview. Sync the landing site and app shell favicons with the shared Every App icon set.

public/site.webmanifest

@@ -1,6 +1,6 @@
 {
-  "name": "",
-  "short_name": "",
+  "name": "OpenSEO",
+  "short_name": "OpenSEO",
   "icons": [
     {
       "src": "/android-chrome-192x192.png",
@@ -13,7 +13,7 @@
       "type": "image/png"
     }
   ],
-  "theme_color": "#ffffff",
-  "background_color": "#ffffff",
+  "theme_color": "#0a0f0d",
+  "background_color": "#0a0f0d",
   "display": "standalone"
 }

src/routes/__root.tsx

@@ -56,7 +56,8 @@ export const Route = createRootRoute({
         sizes: "16x16",
         href: "/favicon-16x16.png",
       },
-      { rel: "icon", href: "/favicon.ico" },
+      { rel: "icon", type: "image/x-icon", href: "/favicon.ico" },
+      { rel: "manifest", href: "/site.webmanifest" },
     ],
     scripts: [],
   }),

web/public/site.webmanifest

@@ -0,0 +1,19 @@
+{
+  "name": "OpenSEO",
+  "short_name": "OpenSEO",
+  "icons": [
+    {
+      "src": "/android-chrome-192x192.png",
+      "sizes": "192x192",
+      "type": "image/png"
+    },
+    {
+      "src": "/android-chrome-512x512.png",
+      "sizes": "512x512",
+      "type": "image/png"
+    }
+  ],
+  "theme_color": "#0a0f0d",
+  "background_color": "#0a0f0d",
+  "display": "standalone"
+}

web/src/lib/seo.ts

@@ -1,4 +1,6 @@
 const DEFAULT_SITE_URL = "https://openseo.so";
+const DEFAULT_SOCIAL_IMAGE_PATH = "/social-card.png";
+const DEFAULT_SOCIAL_IMAGE_ALT = "OpenSEO product preview";
 
 export const SITE_URL = (
   process.env.SITE_URL ??
@@ -23,6 +25,8 @@ type BuildSeoParams = {
   description?: string;
   titleSuffix?: string;
   ogType?: "website" | "article";
+  imagePath?: string;
+  imageAlt?: string;
 };
 
 export function buildPageSeo({
@@ -31,20 +35,34 @@ export function buildPageSeo({
   description,
   titleSuffix,
   ogType = "website",
+  imagePath = DEFAULT_SOCIAL_IMAGE_PATH,
+  imageAlt = DEFAULT_SOCIAL_IMAGE_ALT,
 }: BuildSeoParams) {
   const fullTitle = titleSuffix ? `${title} - ${titleSuffix}` : title;
   const canonicalUrl = toCanonicalUrl(path);
+  const socialImageUrl = toCanonicalUrl(imagePath);
 
   return {
     meta: [
       { title: fullTitle },
       ...(description ? [{ name: "description", content: description }] : []),
+      { property: "og:site_name", content: "OpenSEO" },
       { property: "og:type", content: ogType },
       { property: "og:title", content: fullTitle },
       ...(description
         ? [{ property: "og:description", content: description }]
         : []),
       { property: "og:url", content: canonicalUrl },
+      { property: "og:image", content: socialImageUrl },
+      { property: "og:image:alt", content: imageAlt },
+      { property: "og:image:type", content: "image/png" },
+      { property: "og:image:width", content: "1200" },
+      { property: "og:image:height", content: "630" },
+      { name: "twitter:card", content: "summary_large_image" },
+      { name: "twitter:title", content: fullTitle },
+      ...(description ? [{ name: "twitter:description", content: description }] : []),
+      { name: "twitter:image", content: socialImageUrl },
+      { name: "twitter:image:alt", content: imageAlt },
     ],
     links: [{ rel: "canonical", href: canonicalUrl }],
   };

web/src/routes/__root.tsx

@@ -22,6 +22,24 @@ export const Route = createRootRoute({
     links: [
       { rel: "stylesheet", href: appCss },
       { rel: "icon", type: "image/x-icon", href: "/favicon.ico" },
+      {
+        rel: "apple-touch-icon",
+        sizes: "180x180",
+        href: "/apple-touch-icon.png",
+      },
+      {
+        rel: "icon",
+        type: "image/png",
+        sizes: "32x32",
+        href: "/favicon-32x32.png",
+      },
+      {
+        rel: "icon",
+        type: "image/png",
+        sizes: "16x16",
+        href: "/favicon-16x16.png",
+      },
+      { rel: "manifest", href: "/site.webmanifest" },
     ],
   }),
   component: RootComponent,

web/src/routes/index.tsx

@@ -1,25 +1,18 @@
 import { createFileRoute, Link } from "@tanstack/react-router";
 import { useState } from "react";
-import { toCanonicalUrl } from "@/lib/seo";
+import { buildPageSeo } from "@/lib/seo";
 
 const homeTitle = "OpenSEO - Open Source SEO Platform";
 const homeDescription =
   "Own your SEO. OpenSEO helps teams manage keyword research, backlink analysis, competitor monitoring, and site audits without expensive monthly SEO software subscriptions.";
 
 export const Route = createFileRoute("/")({
-  head: () => ({
-    meta: [
-      { title: homeTitle },
-      { name: "description", content: homeDescription },
-      { property: "og:type", content: "website" },
-      { property: "og:title", content: homeTitle },
-      { property: "og:description", content: homeDescription },
-      { property: "og:url", content: toCanonicalUrl("/") },
-      { name: "twitter:card", content: "summary_large_image" },
-      { name: "twitter:title", content: homeTitle },
-      { name: "twitter:description", content: homeDescription },
-    ],
-    links: [{ rel: "canonical", href: toCanonicalUrl("/") }],
+  head: () =>
+    buildPageSeo({
+      title: homeTitle,
+      description: homeDescription,
+      path: "/",
+      imageAlt: "OpenSEO keyword research dashboard preview",
     }),
   component: Home,
 });