Major refactor: Fix SQLite concurrency, remove rate limiting, simplify architecture

- Switch to single Gunicorn worker to eliminate SQLite database locking issues
- Remove Flask-Limiter and all rate limiting complexity
- Remove Cloudflare proxy setup and dependencies
- Simplify configuration and remove unnecessary features
- Update all templates and static files for streamlined operation
- Clean up old files and documentation
- Restore stable database from backup
- System now runs fast and reliably without database locks

config.json

@@ -3,10 +3,10 @@
     "name": "ircquotes",
     "host": "127.0.0.1",
     "port": 6969,
-    "debug": false
+    "debug": true
   },
   "gunicorn": {
-    "workers": 4,
+    "workers": 1,
     "timeout": 30,
     "keepalive": 5,
     "max_requests": 1000,
@@ -24,12 +24,6 @@
     "session_cookie_secure": false,
     "session_cookie_httponly": true,
     "session_cookie_samesite": "Lax",
-    "proxy_setup": {
-      "behind_cloudflare": true,
-      "behind_nginx": true,
-      "trusted_proxies": 2,
-      "cloudflare_ip_header": "CF-Connecting-IP"
-    },
     "security_headers": {
       "x_content_type_options": "nosniff",
       "x_frame_options": "DENY",
@@ -38,25 +32,9 @@
       "content_security_policy": "default-src 'self'; script-src 'self' 'unsafe-inline'; style-src 'self' 'unsafe-inline'; img-src 'self' data:; connect-src 'self'"
     }
   },
-  "rate_limiting": {
-    "enabled": true,
-    "global_limit": "1000 per hour",
-    "endpoints": {
-      "login": "5 per minute",
-      "submit": "5 per minute",
-      "modapp": "20 per minute",
-      "bulk_actions": "10 per minute",
-      "approve": "30 per minute",
-      "reject": "30 per minute",
-      "delete": "20 per minute",
-      "vote": "60 per minute",
-      "flag": "10 per minute",
-      "search": "30 per minute"
-    }
-  },
   "admin": {
-    "username": "admin",
-    "password_hash": "$argon2i$v=19$m=65536,t=4,p=1$cWZDc1pQaUJLTUJoaVI4cw$kn8XKz6AEZi8ebXfyyZuzommSypliVFrsGqzOyUEIHA"
+    "username": "ComputerTech",
+    "password_hash": "$argon2id$v=19$m=65536,t=3,p=4$cIPRCJrjS1DwjaFov5G+BQ$yundbpf2i1jBrKsj96ra7wTNmVZ56SJR25XX4jp2yR8"
   },
   "quotes": {
     "min_length": 1,