feat: Complete multi-blog setup with 12 collections and subdomain routing

- Added 12 blog collections: art, bfs, dfs, problems, puzzles, reviews, reflections, vibes, workflows, magic, contests, poetry
- Created content config with glob loaders for all collections
- Added sample posts for each collection
- Fixed TypeScript collection recognition by removing duplicate config
- Made BlogPosts component collection-aware for proper routing
- Created individual post pages ([...slug].astro) for each collection
- Added Netlify subdomain routing configuration
- Updated all references to use neeldhara.blog as main domain
- Fixed navigation links in all-blogs component

Ready for GitHub/Netlify deployment with subdomain support.

tsconfig.json

@@ -0,0 +1,20 @@
+{
+  "extends": "astro/tsconfigs/strict",
+  "compilerOptions": {
+    "strictNullChecks": true,
+    "jsx": "react-jsx",
+    "jsxImportSource": "react",
+    "baseUrl": ".",
+    "paths": {
+      "@/*": ["./src/*"],
+      "@code/*": ["./code/*"],
+      "@components/*": ["./src/components/*"],
+      "@layouts/*": ["./src/layouts/*"],
+      "@lib/*": ["./src/lib/*"]
+    },
+    "exactOptionalPropertyTypes": false,
+    "allowJs": true
+  },
+  "include": [".astro/types.d.ts", "**/*"],
+  "exclude": ["node_modules", ".vercel", ".netlify", "dist"]
+}