feat(cloud): Add support for custom cloud app URL configuration (#207)

* feat(cloud): Add support for custom cloud app URL configuration

- Extend CloudState and Config to include CloudAppURL
- Update RPC methods to handle both API and app URLs
- Modify cloud adoption and settings routes to support custom app URLs
- Remove hardcoded cloud app URL environment file
- Simplify cloud URL configuration in UI

* fix(cloud): Improve cloud URL configuration and adoption flow

- Update error handling in cloud URL configuration RPC method
- Modify cloud adoption route to support dynamic cloud URLs
- Remove hardcoded default cloud URLs in device access settings
- Refactor cloud adoption click handler to be more flexible

* refactor(cloud): Simplify cloud URL configuration RPC method

- Update rpcSetCloudUrl to return only an error
- Remove unnecessary boolean return value
- Improve error handling consistency

* refactor(ui): Simplify cloud provider configuration and URL handling

web.go

@@ -100,6 +100,7 @@ func setupRouter() *gin.Engine {
 	{
 		protected.POST("/webrtc/session", handleWebRTCSession)
 		protected.POST("/cloud/register", handleCloudRegister)
+		protected.GET("/cloud/state", handleCloudState)
 		protected.GET("/device", handleDevice)
 		protected.POST("/auth/logout", handleLogout)
 
@@ -359,6 +360,16 @@ func handleDeviceStatus(c *gin.Context) {
 	c.JSON(http.StatusOK, response)
 }
 
+func handleCloudState(c *gin.Context) {
+	response := CloudState{
+		Connected: config.CloudToken != "",
+		URL:       config.CloudURL,
+		AppURL:    config.CloudAppURL,
+	}
+
+	c.JSON(http.StatusOK, response)
+}
+
 func handleDeviceUIConfig(c *gin.Context) {
 	config, _ := json.Marshal(gin.H{
 		"CLOUD_API":      config.CloudURL,