feat: add 'instanode up' command + INSTANT_TOKEN env support (#1)

- cmd/up.go (new): provisions the full bundle (db/cache/nosql/queue/
  storage/webhook) in one command and prints a deploy-ready .env to
  stdout. Mirrors the bundle-first product positioning.

- cmd/monitor.go: provisionResponse gains ReceiveURL field so
  /webhook/new responses parse cleanly (webhook returns receive_url
  instead of connection_url).

- cmd/root.go: INSTANT_TOKEN env var takes priority over the saved
  config from 'instanode login'. Lets CI / agents pass a token without
  a login step.

Co-authored-by: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

Author: mastermanas805

cmd/monitor.go

@@ -91,11 +91,13 @@ func makeProvisionCmd(endpoint, resourceType string) func(*cobra.Command, []stri
 }
 
 // provisionResponse is the shape returned by POST /{service}/new endpoints.
+// /webhook/new returns receive_url instead of connection_url.
 type provisionResponse struct {
 	OK            bool   `json:"ok"`
 	Token         string `json:"token"`
 	Name          string `json:"name"`
 	ConnectionURL string `json:"connection_url"`
+	ReceiveURL    string `json:"receive_url"`
 	Tier          string `json:"tier"`
 	Note          string `json:"note"`
 	Upgrade       string `json:"upgrade"`

cmd/root.go

@@ -82,8 +82,9 @@ func initConfig() {
 	}
 
 	// Wire up the auth transport — no-ops when unauthenticated.
-	apiKey := ""
-	if cfg != nil {
+	// Priority: INSTANT_TOKEN env var > saved config (instant login).
+	apiKey := os.Getenv("INSTANT_TOKEN")
+	if apiKey == "" && cfg != nil {
 		apiKey = cfg.APIKey
 	}
 	HTTPClient = &http.Client{