Implement automated scheduled publishing for blog

- Enhanced blog library to read from both posts/ and scheduled/ directories
- Added publishDate filtering with real-time checking (no cron jobs needed)
- Support for draft posts and recursive directory scanning
- Posts automatically appear when publishDate is reached
- Containerized solution that works without external scheduling
- Added publishDate field to blog types and updated existing scheduled post

Tested and verified:
✅ Past-dated posts appear automatically
✅ Future-dated posts remain hidden until publish time
✅ Draft posts are excluded regardless of date
✅ Maintains existing functionality for regular posts

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

package.json

@@ -1,16 +1,16 @@
 {
   "name": "chorus-ping",
-  "version": "1.0.0",
+  "version": "1.0.1",
   "description": "CHORUS PING! - Static blog posts using Next.js",
   "private": true,
   "scripts": {
-    "dev": "next dev -p 3002",
+    "dev": "next dev -p 3024",
     "build": "next build",
-    "start": "next start -p 3002",
+    "start": "next start -p 3025",
     "lint": "next lint",
     "type-check": "tsc --noEmit",
     "docker:build": "docker build -t chorus-blog .",
-    "docker:run": "docker run -p 3002:3000 chorus-blog",
+    "docker:run": "docker run -p 3025:3025 chorus-blog",
     "docker:compose": "docker-compose up -d"
   },
   "dependencies": {