remove rheemcloud pkg, implement against rest api only

go.mod

@@ -6,7 +6,6 @@ require (
 	buf.build/gen/go/bufbuild/protovalidate/protocolbuffers/go v1.36.11-20260415201107-50325440f8f2.1
 	gitea.libretechconsulting.com/rmcguire/go-app v0.17.1
 	github.com/grpc-ecosystem/grpc-gateway/v2 v2.29.0
-	github.com/kevinburke/rheemcloud-go v0.1.1
 	github.com/modelcontextprotocol/go-sdk v1.6.1
 	github.com/rs/zerolog v1.35.1
 	go.opentelemetry.io/otel/metric v1.44.0
@@ -43,14 +42,11 @@ require (
 	github.com/beorn7/perks v1.0.1 // indirect
 	github.com/cenkalti/backoff/v5 v5.0.3 // indirect
 	github.com/cespare/xxhash/v2 v2.3.0 // indirect
-	github.com/eclipse/paho.mqtt.golang v1.5.1 // indirect
 	github.com/go-logr/logr v1.4.3 // indirect
 	github.com/go-logr/stdr v1.2.2 // indirect
 	github.com/google/cel-go v0.29.1 // indirect
 	github.com/google/jsonschema-go v0.4.3 // indirect
 	github.com/google/uuid v1.6.0 // indirect
-	github.com/gorilla/websocket v1.5.3 // indirect
-	github.com/kevinburke/rest v0.0.0-20260604005914-d145d8a0294b // indirect
 	github.com/mattn/go-colorable v0.1.15 // indirect
 	github.com/mattn/go-isatty v0.0.22 // indirect
 	github.com/munnerz/goautoneg v0.0.0-20191010083416-a7dc8b61c822 // indirect
@@ -70,7 +66,6 @@ require (
 	golang.org/x/exp v0.0.0-20260611194520-c48552f49976 // indirect
 	golang.org/x/net v0.56.0 // indirect
 	golang.org/x/oauth2 v0.36.0 // indirect
-	golang.org/x/sync v0.21.0 // indirect
 	golang.org/x/sys v0.46.0 // indirect
 	golang.org/x/text v0.38.0 // indirect
 	google.golang.org/genproto/googleapis/rpc v0.0.0-20260630182238-925bb5da69e7 // indirect