feat: implement comprehensive blog system

Add dual-source blog system with Editor.js integration:
- Blog storage supporting repo-based (JSON) and database sources
- Admin panel with rich text editor using Editor.js
- Public news page with infinite scroll
- Individual blog post viewer page
- Categories management in admin
- Image upload functionality
- 4 SEO blog posts about WordPress with PluginCompass promotion
- 3 News blog posts about Plugin Compass
- API endpoints for CRUD operations
- Security and validation for admin operations

Closes blog feature request

chat/package.json

@@ -11,13 +11,15 @@
   "author": "",
   "license": "ISC",
   "type": "commonjs",
-  "dependencies": {
-    "adm-zip": "^0.5.16",
-    "archiver": "^6.0.1",
-    "bcrypt": "^6.0.0",
-    "jsonwebtoken": "^9.0.2",
-    "nodemailer": "^7.0.7",
-    "pdfkit": "^0.17.2",
-    "sharp": "^0.33.5"
-  }
+  "dependencies": {
+    "adm-zip": "^0.5.16",
+    "archiver": "^6.0.1",
+    "bcrypt": "^6.0.0",
+    "jsonwebtoken": "^9.0.2",
+    "nodemailer": "^7.0.7",
+    "pdfkit": "^0.17.2",
+    "sharp": "^0.33.5",
+    "better-sqlite3": "^11.8.1",
+    "multer": "^1.4.5-lts.1"
+  }
 }