feat(wifi): add channel analyzer and jam detect modules

[r13xr13]

Summary

Two new WiFi analysis modules for real-time spectrum monitoring and deauth detection.

Changes

Channel Analyzer (src/modules/wifi/channel_analyzer.cpp/.h)

• Real-time per-channel utilization display with solid-threshold bars
• Scans channels 1-11 with configurable dwell time
• Shows channel load percentage, peak, and signal meter
• Tolerates ESP_ERR_WIFI_INIT_STATE for graceful recovery

Jam Detect (src/modules/wifi/jam_detect.cpp/.h)

• Detects deauthentication flood attacks by monitoring deauth packet rate
• Visual indicator when channel is under active attack
• Threshold-based alerting with user-defensible false positive ratio
• Same init-state tolerance as channel analyzer

Testing

• Verified both modules initialize correctly when WiFi is already active or inactive
• No hangs on init failure — modules degrade gracefully and retry
• Accessible from WiFi menu

[Ninja-jr]

Was this tested in a real live device to see if it works as expected and doesn't get messy in small screens?

[r13xr13]

Was this tested in a real live device to see if it works as expected and doesn't get messy in small screens?

trim.2AE4C060-FCA5-4D5E-89F7-08C6DF2077BE.MOV

[Ninja-jr]

All good then.