feat: add site manifest route and SEO schema component

- Implemented a new route for serving the web app manifest.
- Created a new component for generating structured SEO schema data.
- Added capabilities content for various technical skills and services.
- Developed bilingual "About" and "Contact" pages in English and Turkish.
- Introduced a custom hook for internationalization (i18n) support.
- Added translations for navigation, sections, and UI elements in both languages.
- Enhanced SEO functionalities with utility functions for metadata generation.

Author: Kinin-Code-Offical

.hintrc

@@ -0,0 +1,13 @@
+{
+  "extends": [
+    "development"
+  ],
+  "hints": {
+    "axe/aria": [
+      "default",
+      {
+        "aria-valid-attr-value": "off"
+      }
+    ]
+  }
+}

README.md

@@ -40,6 +40,39 @@ Validate content:
 npm run validate-content
 ```
 
+## Languages (TR / EN)
+
+Translations live here:
+
+```
+src/i18n/translations.ts
+```
+
+Markdown pages are per-language:
+
+```
+src/content/pages/about.tr.md
+src/content/pages/about.en.md
+src/content/pages/contact.tr.md
+src/content/pages/contact.en.md
+src/content/pages/title.tr.md
+src/content/pages/title.en.md
+```
+
+Projects and profile content are localized inside:
+
+```
+src/content/profile.ts
+src/content/projects.ts
+```
+
+To add a new language:
+1) Extend `Language` in `src/lib/i18n.ts`.
+2) Add translations in `src/i18n/translations.ts`.
+3) Add `*.md` pages for the new language.
+
+Language toggle writes to localStorage + cookie and also updates `?lang=tr|en`.
+
 ## 3D Model (GLB)
 
 Place the model here:
@@ -115,3 +148,12 @@ firebase emulators:start
 ```
 
 Note: `max-instances` caps cost.
+
+## SEO Checklist
+
+- Verify domain in Google Search Console (DNS).
+- Submit the sitemap (`/sitemap.xml`).
+- Check indexing with `site:your-domain`.
+- Validate canonical + hreflang tags.
+- Test structured data with Google Rich Results / Schema validator.
+- For preview/staging set `NEXT_PUBLIC_NO_INDEX=1` to prevent indexing.

eslint.config.mjs

@@ -12,6 +12,7 @@ const eslintConfig = defineConfig([
     "out/**",
     "build/**",
     "next-env.d.ts",
+    ".history/**",
   ]),
 ]);
 

middleware.ts

@@ -0,0 +1,47 @@
+import type { NextRequest } from "next/server";
+import { NextResponse } from "next/server";
+
+const SUPPORTED = ["tr", "en"] as const;
+
+export function middleware(request: NextRequest) {
+  const { pathname } = request.nextUrl;
+
+  if (pathname.startsWith("/_next") || pathname.startsWith("/api")) {
+    return NextResponse.next();
+  }
+
+  const match = pathname.match(/^\/(tr|en)(\/.*)?$/);
+  if (match) {
+    const lang = match[1];
+    const rest = match[2] ?? "/";
+    const url = request.nextUrl.clone();
+    url.pathname = rest === "" ? "/" : rest;
+    url.searchParams.set("lang", lang);
+    const response = NextResponse.rewrite(url);
+    response.cookies.set("lang", lang, {
+      path: "/",
+      maxAge: 60 * 60 * 24 * 365,
+      sameSite: "lax",
+    });
+    return response;
+  }
+
+  const langCookie = request.cookies.get("lang")?.value;
+  if (!langCookie || !SUPPORTED.includes(langCookie as typeof SUPPORTED[number])) {
+    const response = NextResponse.next();
+    response.cookies.set("lang", "en", {
+      path: "/",
+      maxAge: 60 * 60 * 24 * 365,
+      sameSite: "lax",
+    });
+    return response;
+  }
+
+  return NextResponse.next();
+}
+
+export const config = {
+  matcher: [
+    "/((?!_next|api|favicon.ico|robots.txt|sitemap.xml|site.webmanifest|icon-192.png|icon-512.png|apple-icon.png|icon.png|og.png|og.svg).*)",
+  ],
+};

package-lock.json

@@ -13,6 +13,7 @@
   "dependencies": {
     "@react-three/drei": "^10.7.7",
     "@react-three/fiber": "^9.5.0",
+    "framer-motion": "^11.0.0",
     "next": "16.1.5",
     "react": "19.2.3",
     "react-dom": "19.2.3",