Add detailed plugin documentation for Cleanup, Cloudflare, Deny Pages, IP Whitelist, JWT Validator, and FastCGI plugins

- Added individual markdown files with examples, configuration options, and HAProxy outputs for each plugin.
- Updated `README.md` to link plugin-specific documentation.
- Enhanced `plugins.md` to summarize plugin features and usage.
- Included Docker, Kubernetes, Swarm, and static configuration examples for all plugins.

docs/plugins/deny-pages.md

@@ -0,0 +1,113 @@
+# Deny Pages Plugin
+
+**Type:** Domain Plugin
+**Runs:** Once for each discovered domain/host
+
+## Overview
+
+The Deny Pages plugin blocks access to specific paths for a domain, returning a configurable HTTP status code.
+
+## Why Use It
+
+Protect admin panels, internal APIs, or debugging endpoints from public access.
+
+## Configuration Options
+
+| Option        | Description                            | Default    |
+|---------------|----------------------------------------|------------|
+| `enabled`     | Enable/disable plugin                  | `true`     |
+| `paths`       | Comma-separated list of paths to block | (required) |
+| `status_code` | HTTP status code to return             | `403`      |
+
+## Configuration Examples
+
+### Docker/Docker Compose (Basic)
+
+```yaml
+services:
+  webapp:
+    labels:
+      easyhaproxy.http.host: example.com
+      easyhaproxy.http.plugins: deny_pages
+      easyhaproxy.http.plugin.deny_pages.paths: /admin,/private,/debug
+      easyhaproxy.http.plugin.deny_pages.status_code: 404
+```
+
+### WordPress Protection
+
+```yaml
+labels:
+  easyhaproxy.http.host: wordpress.example.com
+  easyhaproxy.http.plugins: deny_pages
+  easyhaproxy.http.plugin.deny_pages.paths: /wp-admin,/wp-login.php,/.env
+  easyhaproxy.http.plugin.deny_pages.status_code: 404
+```
+
+### Kubernetes Annotations
+
+```yaml
+apiVersion: networking.k8s.io/v1
+kind: Ingress
+metadata:
+  annotations:
+    easyhaproxy.plugins: "deny_pages"
+    easyhaproxy.plugin.deny_pages.paths: "/admin,/private"
+    easyhaproxy.plugin.deny_pages.status_code: "403"
+spec:
+  rules:
+    - host: example.com
+      http:
+        paths:
+          - path: /
+            backend:
+              service:
+                name: webapp
+                port:
+                  number: 80
+```
+
+### Static YAML Configuration
+
+```yaml
+# /etc/haproxy/static/config.yaml
+easymapping:
+  - host: example.com
+    port: 80
+    container: webapp:80
+    plugins:
+      - deny_pages
+    plugin_config:
+      deny_pages:
+        paths: /admin,/private,/debug
+        status_code: 403
+```
+
+### Multiple Plugins (with Cloudflare)
+
+```yaml
+labels:
+  easyhaproxy.http.host: secure-app.com
+  easyhaproxy.http.plugins: cloudflare,deny_pages
+  easyhaproxy.http.plugin.deny_pages.paths: /admin,/config
+  easyhaproxy.http.plugin.deny_pages.status_code: 403
+```
+
+## Generated HAProxy Configuration
+
+```haproxy
+# Deny Pages - Block specific paths
+acl denied_path path_beg /admin /private /debug
+http-request deny deny_status 404 if denied_path
+```
+
+## Important Notes
+
+- The plugin runs once per domain during the discovery cycle
+- Path matching uses `path_beg` (prefix matching), so `/admin` blocks `/admin/*` too
+- Consider using `404` instead of `403` to hide the existence of blocked paths
+- Works well in combination with other security plugins
+
+## Related Documentation
+
+- [Plugin System Overview](../plugins.md)
+- [Container Labels Reference](../container-labels.md)