feat: Add CrowdSec logging, rate limiting, and fix MCP parameter defaults

- Add real client IP detection (CF-Connecting-IP / src fallback) to both frontends
- Add per-IP rate limiting (429) using real IP for Cloudflare compatibility
- Add CrowdSec syslog forwarding with custom log format
- Add httplog option for detailed HTTP logging
- Fix Python-level defaults on MCP tool parameters to match Field(default=X)

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

haproxy_mcp/tools/servers.py

@@ -455,7 +455,7 @@ def register_server_tools(mcp):
         domain: Annotated[str, Field(description="Domain name to add server to (e.g., api.example.com)")],
         slot: Annotated[int, Field(description="Server slot number 1-10, or 0 for auto-select next available slot")],
         ip: Annotated[str, Field(description="Server IP address (IPv4 like 10.0.0.1 or IPv6 like 2001:db8::1)")],
-        http_port: Annotated[int, Field(default=80, description="HTTP port for backend connection (default: 80)")]
+        http_port: Annotated[int, Field(default=80, description="HTTP port for backend connection (default: 80)")] = 80
     ) -> str:
         """Add a server to a domain's backend pool for load balancing.
 
@@ -509,7 +509,7 @@ def register_server_tools(mcp):
     @mcp.tool()
     def haproxy_wait_drain(
         domain: Annotated[str, Field(description="Domain name to wait for (e.g., api.example.com)")],
-        timeout: Annotated[int, Field(default=30, description="Maximum seconds to wait (default: 30, max: 300)")]
+        timeout: Annotated[int, Field(default=30, description="Maximum seconds to wait (default: 30, max: 300)")] = 30
     ) -> str:
         """Wait for all active connections to drain from a domain's servers.