Enable enhanced debug logging for network troubleshooting

Added debugging configuration to help diagnose AsyncWebServer connection issues:

1. **wokwi.toml** - Added log level configuration:
   - logLevel = "warn" for general Wokwi output
   - logLevel = "debug" for network traffic logging on port forwarding
   - This will show detailed network traffic between localhost:8080 and target:80

2. **diagram.json** - Increased serial buffer:
   - bufferSize: 8192 (up from default)
   - Prevents serial output truncation during debugging
   - Ensures complete capture of firmware logs

These changes provide visibility into:
- Network connection attempts and failures
- HTTP request/response traffic
- AsyncWebServer initialization and operation
- Any network-related errors or timeouts

Co-authored-by: softhack007 <91616163+softhack007@users.noreply.github.com>

Author: Copilot

test/wokwi/diagram.json

@@ -22,6 +22,7 @@
   "dependencies": {},
   "serialMonitor": {
     "display": "always",
-    "newline": "lf"
+    "newline": "lf",
+    "bufferSize": 8192
   }
 }

test/wokwi/wokwi.toml

@@ -5,6 +5,7 @@ version = 1
 firmware = "firmware-combined.bin"
 elf = "firmware.elf"
 gdbServerPort=3333
+logLevel = "warn"  # Enable Wokwi debug logging (error, warn, info, debug, trace)
 
 # Combined firmware layout:
 #   0x1000  - bootloader
@@ -15,3 +16,4 @@ gdbServerPort=3333
 # Forward the web server port
 from = "localhost:8080"
 to = "target:80"
+logLevel = "debug"  # Log all network traffic for debugging AsyncWebServer issues