fix: add dynamic sitemap.xml and fix eslint config

apps/web/app/sitemap.ts

@@ -0,0 +1,56 @@
+import { MetadataRoute } from 'next';
+import { blogPosts } from '../src/data/blogPosts';
+import { technologies } from './technologies/[slug]/data';
+
+/**
+ * Sitemap Generator
+ * 
+ * Standard Next.js 15 App Router sitemap generation.
+ * This file dynamically generates /sitemap.xml
+ */
+export default function sitemap(): MetadataRoute.Sitemap {
+    const baseUrl = process.env.NEXT_PUBLIC_BASE_URL || 'https://mintel.me';
+
+    // 1. Core Pages
+    const routes = [
+        '',
+        '/about',
+        '/blog',
+        '/case-studies',
+        '/case-studies/klz-cables',
+        '/contact',
+        '/websites',
+    ].map((route) => ({
+        url: `${baseUrl}${route}`,
+        lastModified: new Date(),
+        changeFrequency: 'monthly' as const,
+        priority: route === '' ? 1.0 : 0.8,
+    }));
+
+    // 2. Dynamic Blog Posts
+    const blogRoutes = blogPosts.map((post) => ({
+        url: `${baseUrl}/blog/${post.slug}`,
+        lastModified: new Date(post.date),
+        changeFrequency: 'monthly' as const,
+        priority: 0.7,
+    }));
+
+    // 3. Technology Detail Pages
+    const techRoutes = Object.keys(technologies).map((slug) => ({
+        url: `${baseUrl}/technologies/${slug}`,
+        lastModified: new Date(),
+        changeFrequency: 'monthly' as const,
+        priority: 0.6,
+    }));
+
+    // 4. Tag Pages
+    const allTags = [...new Set(blogPosts.flatMap((post) => post.tags))];
+    const tagRoutes = allTags.map((tag) => ({
+        url: `${baseUrl}/tags/${tag}`,
+        lastModified: new Date(),
+        changeFrequency: 'weekly' as const,
+        priority: 0.3,
+    }));
+
+    return [...routes, ...blogRoutes, ...techRoutes, ...tagRoutes];
+}