refactor: move http api to a new transport layer

internal/transport/node/client.go

@@ -0,0 +1,17 @@
+package node
+
+import (
+	"git.wzray.com/homelab/hivemind/internal/transport"
+)
+
+type Client struct {
+	caller transport.Caller
+}
+
+func New(caller transport.Caller) *Client {
+	return &Client{caller: caller}
+}
+
+func (c *Client) Healthcheck(endpoint string) (string, error) {
+	return healthcheckRoute.CallNoInput(c.caller, endpoint)
+}