fix: Clean up Quick Setup — remove NATS_TOKEN, auto-populate license key

NATS has no auth configured, so NATS_TOKEN was a placeholder that
confused users. Made it optional in the Go agent (default empty) and
removed it from Quick Setup commands. Also removed GAME_SERVER_PATH
since one-click deploy handles server installation. License key already
auto-populates from auth store after previous commit.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

companion-agent/cmd/agent/main.go

@@ -18,7 +18,7 @@ import (
 type Config struct {
 	// NATS connection
 	NATSUrl   string `envconfig:"NATS_URL" required:"true"`
-	NATSToken string `envconfig:"NATS_TOKEN" required:"true"`
+	NATSToken string `envconfig:"NATS_TOKEN" default:""`
 
 	// License identification
 	LicenseID string `envconfig:"LICENSE_ID" required:"true"`

companion-agent/internal/client/nats.go

@@ -7,13 +7,12 @@ import (
 	"github.com/nats-io/nats.go"
 )
 
-// Connect establishes a connection to NATS with token authentication
+// Connect establishes a connection to NATS with optional token authentication
 // and automatic reconnection handling
 func Connect(url, token string) (*nats.Conn, error) {
 	opts := []nats.Option{
-		nats.Token(token),
 		nats.Name("corrosion-companion"),
-		nats.MaxReconnects(-1), // Unlimited reconnect attempts
+		nats.MaxReconnects(-1),
 		nats.ReconnectWait(2 * time.Second),
 		nats.DisconnectErrHandler(func(nc *nats.Conn, err error) {
 			if err != nil {
@@ -31,6 +30,11 @@ func Connect(url, token string) (*nats.Conn, error) {
 		}),
 	}
 
+	// Only use token auth if a token is provided
+	if token != "" {
+		opts = append(opts, nats.Token(token))
+	}
+
 	nc, err := nats.Connect(url, opts...)
 	if err != nil {
 		return nil, fmt.Errorf("failed to connect to NATS: %w", err)

frontend/src/views/admin/ServerView.vue

@@ -73,8 +73,6 @@ chmod +x corrosion-companion-linux-amd64
 # Start with your license key
 export LICENSE_ID="${licenseKey.value}"
 export NATS_URL="nats://nats.corrosionmgmt.com:4222"
-export NATS_TOKEN="<your-nats-token>"
-export GAME_SERVER_PATH="/path/to/RustDedicated"
 ./corrosion-companion-linux-amd64`)
 
 const windowsCommands = computed(() => `# Requires PowerShell (not Command Prompt)
@@ -84,8 +82,6 @@ Invoke-WebRequest -Uri "https://cdn.corrosionmgmt.com/companion/latest/corrosion
 # Start with your license key
 $env:LICENSE_ID="${licenseKey.value}"
 $env:NATS_URL="nats://nats.corrosionmgmt.com:4222"
-$env:NATS_TOKEN="<your-nats-token>"
-$env:GAME_SERVER_PATH="C:\\RustServer\\server\\RustDedicated.exe"
 .\\corrosion-companion-windows-amd64.exe`)
 
 async function copySetupCommands() {
@@ -390,8 +386,6 @@ onMounted(async () => {
           <p class="mt-3 text-neutral-500"># Start with your license key</p>
           <p>export LICENSE_ID=<span class="text-oxide-400">"{{ licenseKey }}"</span></p>
           <p>export NATS_URL=<span class="text-oxide-400">"nats://nats.corrosionmgmt.com:4222"</span></p>
-          <p>export NATS_TOKEN=<span class="text-neutral-500">"&lt;your-nats-token&gt;"</span></p>
-          <p>export GAME_SERVER_PATH=<span class="text-neutral-500">"/path/to/RustDedicated"</span></p>
           <p>./corrosion-companion-linux-amd64</p>
         </div>
 
@@ -403,8 +397,6 @@ onMounted(async () => {
           <p class="mt-3 text-neutral-500"># Start with your license key</p>
           <p>$env:LICENSE_ID=<span class="text-oxide-400">"{{ licenseKey }}"</span></p>
           <p>$env:NATS_URL=<span class="text-oxide-400">"nats://nats.corrosionmgmt.com:4222"</span></p>
-          <p>$env:NATS_TOKEN=<span class="text-neutral-500">"&lt;your-nats-token&gt;"</span></p>
-          <p>$env:GAME_SERVER_PATH=<span class="text-neutral-500">"C:\RustServer\server\RustDedicated.exe"</span></p>
           <p>.\corrosion-companion-windows-amd64.exe</p>
         </div>
       </div>