remove rheemcloud pkg, implement against rest api only

contrib/schema.json

@@ -124,6 +124,7 @@
   },
   "properties": {
     "costPerKWH": {
+      "default": 0.19,
       "type": "number"
     },
     "econetEmail": {
@@ -132,6 +133,10 @@
     "econetPassword": {
       "type": "string"
     },
+    "econetTLSInsecure": {
+      "default": false,
+      "type": "boolean"
+    },
     "environment": {
       "type": "string"
     },
@@ -150,7 +155,7 @@
     "otel": {
       "$ref": "#/definitions/ConfigOTELConfig"
     },
-    "usageInterval": {
+    "pollInterval": {
       "type": "integer"
     },
     "version": {