Initial commit: FranklinWH AGATE client library reverse engineered from Family Energy app

- Reverse engineered network I/O stack for AGATE device
- Bluetooth LE and Wi-Fi onboard communication support
- Discovered operations: queryAgateInfo, queryDeviceInfoHttp, queryModesByHttp, queryConnectWifi, connectViaBluetooth, startBluetoothHeartbeat
- Cloud API endpoints identified: e-api.franklinwh.com, energy.franklinwh.com, hes-gateway
- Python library structure with client, bluetooth, wifi, api modules
- Documentation for reverse engineering findings

franklinwh_agate_client/wifi.py

@@ -0,0 +1,23 @@
+"""
+Wi-Fi Manager for AGATE device network operations.
+"""
+
+class WifiManager:
+    """Manages Wi-Fi connection to AGATE device onboard hotspot."""
+    
+    def __init__(self):
+        self.connected = False
+    
+    def query_connect_wifi(self, ssid, password=None):
+        """Query/connect to AGATE Wi-Fi."""
+        # Reverse engineered operation: queryConnectWifi
+        pass
+    
+    def wifi_onboarding_add_wifi(self, ssid, password):
+        """Add Wi-Fi network via onboarding."""
+        # Reverse engineered operation: wifiOnboardingAddWifi
+        pass
+    
+    def get_wifi_signal_strength(self):
+        """Get current Wi-Fi signal strength."""
+        pass