docs: rebrand VNG Cloud to GreenNode in VKS and shared text

CLAUDE.md

@@ -2,7 +2,7 @@
 
 ## Project overview
 
-GreenNode CLI (`grn`) is a unified command-line tool for managing GreenNode (VNG Cloud) services. Written in Go, distributed as a single binary. VKS (VNG Kubernetes Service) is the first service; other product teams add their own services.
+GreenNode CLI (`grn`) is a unified command-line tool for managing GreenNode services. Written in Go, distributed as a single binary. VKS (GreenNode Kubernetes Service) is the first service; other product teams add their own services.
 
 - **Repo**: `vngcloud/greennode-cli`
 - **Docs**: https://vngcloud.github.io/greennode-cli/
@@ -78,7 +78,7 @@ go/
 - Commands in `cmd/` following cobra patterns
 - Use `cobra.Command` with `RunE` for error handling
 
-## VNG Cloud API quirks
+## GreenNode API quirks
 
 - **IAM API uses camelCase**: `grantType`, `accessToken`, `expiresIn`
 - **VKS API pagination is 0-based**: page 0 = first page

README.md

@@ -87,7 +87,7 @@ output = json
 project_id = pro-xxxxxxxx
 ```
 
-Credentials are obtained from the [VNG Cloud IAM Portal](https://hcm-3.console.vngcloud.vn/iam/) under Service Accounts.
+Credentials are obtained from the [GreenNode IAM Portal](https://hcm-3.console.vngcloud.vn/iam/) under Service Accounts.
 
 Credential resolution order: environment variables take priority over the credentials file.
 
@@ -194,7 +194,7 @@ The best way to interact with our team is through GitHub:
 - [Documentation](https://vngcloud.github.io/greenode-cli/)
 - [Changelog](CHANGELOG.md)
 - [Contributing Guide](CONTRIBUTING.md)
-- [VNG Cloud Console](https://hcm-3.console.vngcloud.vn/)
+- [GreenNode Console](https://hcm-3.console.vngcloud.vn/)
 
 ## License
 

docs/commands/vks/index.md

@@ -1,6 +1,6 @@
 # VKS Commands
 
-VKS (VNG Kubernetes Service) commands for managing Kubernetes clusters and node groups.
+VKS (GreenNode Kubernetes Service) commands for managing Kubernetes clusters and node groups.
 
 ```bash
 grn vks <command> [options]

docs/configuration.md

@@ -18,7 +18,7 @@ Fetching project_id from HCM-3...
 Auto-detected project_id: pro-xxxxxxxx
 ```
 
-`Project ID` is the VNG Cloud project UUID for the selected region (e.g.
+`Project ID` is the GreenNode project UUID for the selected region (e.g.
 `pro-e28d4501-...`). Leave blank and the wizard calls the vServer API with
 your credentials to detect and save it. Each user has one project per region,
 so the detection is unambiguous.
@@ -27,7 +27,7 @@ If auto-detect fails (network or auth error), the wizard prints a warning and
 leaves the field blank — downstream tools (such as the GreenNode MCP Server)
 can still auto-detect at first call.
 
-Credentials are obtained from the [VNG Cloud IAM Portal](https://hcm-3.console.vngcloud.vn/iam/) under Service Accounts.
+Credentials are obtained from the [GreenNode IAM Portal](https://hcm-3.console.vngcloud.vn/iam/) under Service Accounts.
 
 ## Credential resolution order
 
@@ -43,7 +43,7 @@ Credentials are resolved in the following order (highest to lowest priority):
 | `GRN_ACCESS_KEY_ID` | Client ID (overrides credentials file) |
 | `GRN_SECRET_ACCESS_KEY` | Client Secret (overrides credentials file) |
 | `GRN_DEFAULT_REGION` | Default region |
-| `GRN_DEFAULT_PROJECT_ID` | Project ID (VNG Cloud project UUID) |
+| `GRN_DEFAULT_PROJECT_ID` | Project ID (GreenNode project UUID) |
 | `GRN_PROFILE` | Profile name (default: "default") |
 | `GRN_DEFAULT_OUTPUT` | Output format |
 

go/cmd/root.go

@@ -30,14 +30,14 @@ var (
 
 var rootCmd = &cobra.Command{
 	Use:     "grn",
-	Short:   "GreenNode CLI - unified command-line tool for GreenNode (VNG Cloud) services",
+	Short:   "GreenNode CLI - unified command-line tool for GreenNode services",
 	Version: fmt.Sprintf("%s Go/%s %s/%s", cliVersion, runtime.Version()[2:], runtime.GOOS, runtime.GOARCH),
 	// Print a single clean "Error: ..." line on failure (done in Execute) rather
 	// than cobra's error plus a full usage dump.
 	SilenceErrors: true,
 	SilenceUsage:  true,
 	Long: `GreenNode CLI (grn) is a unified command-line tool for managing
-GreenNode (VNG Cloud) services including VKS (VNG Kubernetes Service).
+GreenNode services including VKS (GreenNode Kubernetes Service).
 
 To get started, run:
   grn configure

go/cmd/vks/vks.go

@@ -8,7 +8,7 @@ import (
 // VksCmd is the parent command for all VKS subcommands.
 var VksCmd = &cobra.Command{
 	Use:   "vks",
-	Short: "VNG Kubernetes Service (VKS) commands",
+	Short: "GreenNode Kubernetes Service (VKS) commands",
 	Long:  "Manage VKS clusters, node groups, and related resources.",
 	// Reject unknown subcommands (nested groups don't error by default in cobra).
 	Args: cobra.NoArgs,