v0.7.12 - Implemented comprehensive debug system with 6 levels (0-5), file:line tracking at TRACE level, deployment script integration, and default level 5 for development

src/config.h

@@ -105,6 +105,7 @@ typedef struct {
     char admin_pubkey_override[65];   // Empty string = not set, 64-char hex = override
     char relay_privkey_override[65];  // Empty string = not set, 64-char hex = override
     int strict_port;  // 0 = allow port increment, 1 = fail if exact port unavailable
+    int debug_level;  // 0-5, default 0 (no debug output)
 } cli_options_t;
 
 // Global unified configuration cache