alex d533f4d754 Refactor WiFi scanning to be fully async for ESPAsyncWebServer ...

- Remove blocking WiFi scan operations from HTTP handlers
- Make WiFi_scanNetworks() always async, remove sync path
- Remove blocking wait loop that caused WDT resets
- Add scan status polling in process() function
- Make getScanItemOut() cache-only, never triggers scans
- Add /wifi/scanstatus JSON endpoint for AJAX polling
- Add client-side JavaScript for async network list updates
- Remove _asyncScan toggle, always use async scanning
- Add scan state management variables (_scanInProgress, _scanRequested)

2025-11-05 19:18:48 +10:00

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WiFiManager

Refactor WiFi scanning to be fully async for ESPAsyncWebServer

2025-11-05 19:18:48 +10:00