feat(server): real agent credentials + agent.toml setup; per-game config honesty

Server page Host-agent panel now fetches GET /api/servers/agent-
credentials and renders the real agent.toml (license UUID, nats_user,
nats_password) instead of the broken LICENSE_ID=license_key env
commands that would never connect. Password masked by default with a
reveal toggle; copy-to-clipboard uses the real value. Setup commands
point at --config /etc/corrosion/agent.toml.

Configuration panel: World size / Current seed (Rust-only Facepunch
concepts) gated behind isRust; Conan/Soulmask/Dune get an honest note
pointing to the File Manager for their real config files instead of
fake Rust fields.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

frontend/src/views/admin/ServerView.vue

@@ -1,12 +1,12 @@
 <script setup lang="ts">
 import { ref, computed, onMounted } from 'vue'
 import { useServerStore } from '@/stores/server'
-import { useAuthStore } from '@/stores/auth'
 import { useToastStore } from '@/stores/toast'
 import { useThemeGame } from '@/composables/useThemeGame'
 import { useGameProfile } from '@/config/gameProfiles'
 import type { DeploymentConfig, DeploymentStatus } from '@/types'
 import { useWebSocket } from '@/composables/useWebSocket'
+import { useApi } from '@/composables/useApi'
 import Panel from '@/components/ds/data/Panel.vue'
 import Button from '@/components/ds/core/Button.vue'
 import Badge from '@/components/ds/core/Badge.vue'
@@ -19,7 +19,6 @@ import Switch from '@/components/ds/forms/Switch.vue'
 import Tabs from '@/components/ds/navigation/Tabs.vue'
 
 const server = useServerStore()
-const auth = useAuthStore()
 const toast = useToastStore()
 const { activeGame } = useThemeGame()
 
@@ -66,6 +65,18 @@ const deployLoading = ref(false)
 const oxideStatus = ref<{ stage: string; progress: number; message: string; error?: string } | null>(null)
 const isInstallingOxide = ref(false)
 
+// Agent credentials (fetched from /api/servers/agent-credentials on mount)
+interface AgentCreds {
+  license_id: string
+  nats_user: string
+  nats_password: string
+  nats_url: string
+}
+const agentCreds = ref<AgentCreds | null>(null)
+const showCreds = ref(false)
+// Ref for the TOML block copy button
+const tomlCopied = ref(false)
+
 const deployForm = ref<DeploymentConfig>({
   server_name: 'My Rust Server',
   max_players: 100,
@@ -97,25 +108,62 @@ const agentLastSeenLabel = computed(() => {
   return d.toLocaleDateString()
 })
 
-const licenseKey = computed(() => auth.license?.license_key || 'YOUR-LICENSE-KEY')
-
 const linuxCommands = computed(() => `# Download the agent
 curl -LO https://cdn.corrosionmgmt.com/host-agent/latest/corrosion-host-agent-linux-amd64
 chmod +x corrosion-host-agent-linux-amd64
 
-# Start with your license key
-export LICENSE_ID="${licenseKey.value}"
-export NATS_URL="nats://nats.corrosionmgmt.com:4222"
-./corrosion-host-agent-linux-amd64`)
+# Write /etc/corrosion/agent.toml (see config block below), then run:
+sudo mkdir -p /etc/corrosion
+sudo ./corrosion-host-agent-linux-amd64 --config /etc/corrosion/agent.toml`)
 
 const windowsCommands = computed(() => `# Requires PowerShell (not Command Prompt)
 # Download the agent
 Invoke-WebRequest -Uri "https://cdn.corrosionmgmt.com/host-agent/latest/corrosion-host-agent-windows-amd64.exe" -OutFile "corrosion-host-agent-windows-amd64.exe"
 
-# Start with your license key
-$env:LICENSE_ID="${licenseKey.value}"
-$env:NATS_URL="nats://nats.corrosionmgmt.com:4222"
-.\\corrosion-host-agent-windows-amd64.exe`)
+# Write C:\\ProgramData\\Corrosion\\agent.toml (see config block below), then run:
+New-Item -ItemType Directory -Force -Path "C:\\ProgramData\\Corrosion"
+.\\corrosion-host-agent-windows-amd64.exe --config "C:\\ProgramData\\Corrosion\\agent.toml"`)
+
+const agentTomlConfig = computed(() => {
+  const c = agentCreds.value
+  const licenseId = c?.license_id ?? 'YOUR-LICENSE-ID'
+  const natsUrl = c?.nats_url ?? 'nats://nats.corrosionmgmt.com:4222'
+  const natsUser = c?.nats_user ?? 'YOUR-LICENSE-ID'
+  const natsPassword = c ? (showCreds.value ? c.nats_password : '••••••••') : 'YOUR-AGENT-TOKEN'
+  return `[agent]
+license_id = "${licenseId}"
+nats_url = "${natsUrl}"
+nats_user = "${natsUser}"
+nats_password = "${natsPassword}"
+heartbeat_seconds = 60
+
+[[instance]]
+id = "rust-main"
+game = "rust"
+root = "/opt/rustserver"
+label = "My Server"`
+})
+
+// Returns the raw (unmasked) TOML for clipboard — always use actual password if available
+const agentTomlConfigRaw = computed(() => {
+  const c = agentCreds.value
+  const licenseId = c?.license_id ?? 'YOUR-LICENSE-ID'
+  const natsUrl = c?.nats_url ?? 'nats://nats.corrosionmgmt.com:4222'
+  const natsUser = c?.nats_user ?? 'YOUR-LICENSE-ID'
+  const natsPassword = c?.nats_password ?? 'YOUR-AGENT-TOKEN'
+  return `[agent]
+license_id = "${licenseId}"
+nats_url = "${natsUrl}"
+nats_user = "${natsUser}"
+nats_password = "${natsPassword}"
+heartbeat_seconds = 60
+
+[[instance]]
+id = "rust-main"
+game = "rust"
+root = "/opt/rustserver"
+label = "My Server"`
+})
 
 async function copySetupCommands() {
   try {
@@ -133,6 +181,16 @@ async function copySetupCommands() {
   }
 }
 
+async function copyTomlConfig() {
+  try {
+    await navigator.clipboard.writeText(agentTomlConfigRaw.value)
+    tomlCopied.value = true
+    setTimeout(() => { tomlCopied.value = false }, 2000)
+  } catch {
+    // Clipboard API unavailable
+  }
+}
+
 async function startDeploy() {
   if (!deployForm.value.rcon_password || deployForm.value.rcon_password.length < 6) return
   deployLoading.value = true
@@ -297,6 +355,14 @@ onMounted(async () => {
   await server.fetchServer()
   loadFormFromConfig()
 
+  // Fetch agent credentials for the TOML config block (leave null on error — honest fallback)
+  try {
+    const creds = await useApi().get<AgentCreds | null>('/servers/agent-credentials')
+    agentCreds.value = creds
+  } catch {
+    agentCreds.value = null
+  }
+
   const ws = useWebSocket()
   ws.subscribe((msg) => {
     if (msg.type === 'event' && msg.event === 'deploy_status') {
@@ -463,10 +529,9 @@ onMounted(async () => {
         <p class="sv__cmt"># Download the agent</p>
         <p>curl -LO https://cdn.corrosionmgmt.com/host-agent/latest/corrosion-host-agent-linux-amd64</p>
         <p>chmod +x corrosion-host-agent-linux-amd64</p>
-        <p class="sv__cmt sv__mt">&#x23; Start with your license key</p>
-        <p>export LICENSE_ID=<span class="sv__accent">"{{ licenseKey }}"</span></p>
-        <p>export NATS_URL=<span class="sv__accent">"nats://nats.corrosionmgmt.com:4222"</span></p>
-        <p>./corrosion-host-agent-linux-amd64</p>
+        <p class="sv__cmt sv__mt">&#x23; Write /etc/corrosion/agent.toml (see config block below), then run:</p>
+        <p>sudo mkdir -p /etc/corrosion</p>
+        <p>sudo ./corrosion-host-agent-linux-amd64 --config <span class="sv__accent">/etc/corrosion/agent.toml</span></p>
       </div>
 
       <!-- Windows commands -->
@@ -474,11 +539,38 @@ onMounted(async () => {
         <p class="sv__cmt"># Requires PowerShell (not Command Prompt)</p>
         <p class="sv__cmt"># Download the agent</p>
         <p>Invoke-WebRequest -Uri <span class="sv__accent">"https://cdn.corrosionmgmt.com/host-agent/latest/corrosion-host-agent-windows-amd64.exe"</span> -OutFile <span class="sv__accent">"corrosion-host-agent-windows-amd64.exe"</span></p>
-        <p class="sv__cmt sv__mt">&#x23; Start with your license key</p>
-        <p>$env:LICENSE_ID=<span class="sv__accent">"{{ licenseKey }}"</span></p>
-        <p>$env:NATS_URL=<span class="sv__accent">"nats://nats.corrosionmgmt.com:4222"</span></p>
-        <p>.\corrosion-host-agent-windows-amd64.exe</p>
+        <p class="sv__cmt sv__mt">&#x23; Write C:\ProgramData\Corrosion\agent.toml (see config block below), then run:</p>
+        <p>New-Item -ItemType Directory -Force -Path <span class="sv__accent">"C:\ProgramData\Corrosion"</span></p>
+        <p>.\corrosion-host-agent-windows-amd64.exe --config <span class="sv__accent">"C:\ProgramData\Corrosion\agent.toml"</span></p>
       </div>
+
+      <!-- Agent configuration (agent.toml) -->
+      <div class="sv__section-head sv__mt">
+        <Icon name="file-text" :size="14" />
+        <span>Agent configuration (agent.toml)</span>
+      </div>
+      <div class="sv__setup-head">
+        <div class="sv__toml-reveal">
+          <Button
+            variant="ghost"
+            size="sm"
+            :icon="showCreds ? 'eye-off' : 'eye'"
+            @click="showCreds = !showCreds"
+          >{{ showCreds ? 'Hide credentials' : 'Reveal credentials' }}</Button>
+        </div>
+        <Button
+          variant="secondary"
+          size="sm"
+          :icon="tomlCopied ? 'check' : 'copy'"
+          @click="copyTomlConfig"
+        >{{ tomlCopied ? 'Copied' : 'Copy' }}</Button>
+      </div>
+      <div class="sv__codeblock">
+        <pre class="sv__pre">{{ agentTomlConfig }}</pre>
+      </div>
+      <Alert v-if="!agentCreds" tone="warn" class="sv__mt">
+        Could not load credentials from server. Copy this config and replace the placeholders with values from your Corrosion dashboard settings.
+      </Alert>
     </Panel>
 
     <!-- Deploy Server — Rust only (SteamCMD path). Other games use docker-compose or external tooling. -->
@@ -778,15 +870,21 @@ onMounted(async () => {
           <div class="sv__field-label">Max players</div>
           <div class="sv__field-val sv__field-val--mono">{{ server.config?.max_players ?? '—' }}</div>
         </div>
-        <div class="sv__field">
+        <!-- Rust-only: world size and seed are Facepunch/procgen concepts -->
+        <div v-if="isRust" class="sv__field">
           <div class="sv__field-label">World size</div>
           <div class="sv__field-val sv__field-val--mono">{{ server.config?.world_size ?? '—' }}</div>
         </div>
-        <div class="sv__field">
+        <div v-if="isRust" class="sv__field">
           <div class="sv__field-label">Current seed</div>
           <div class="sv__field-val sv__field-val--mono">{{ server.config?.current_seed ?? '—' }}</div>
         </div>
       </div>
+      <!-- Non-Rust: game-specific settings live in config files on the host -->
+      <Alert v-if="!editMode && !isRust" tone="neutral" class="sv__mt">
+        Game-specific settings for {{ profile.label }} live in config files on the host — manage them in the
+        <Button variant="ghost" size="sm" icon="folder" @click="$router.push('/files')">File Manager</Button>
+      </Alert>
 
       <!-- Edit mode -->
       <form v-else @submit.prevent="saveConfig" class="sv__form">
@@ -803,7 +901,9 @@ onMounted(async () => {
             type="number"
             :mono="true"
           />
+          <!-- Rust-only: world size and seed are Facepunch/procgen concepts -->
           <Input
+            v-if="isRust"
             :model-value="String(form.world_size)"
             @update:model-value="v => { form.world_size = Number(v) }"
             label="World size"
@@ -811,6 +911,7 @@ onMounted(async () => {
             :mono="true"
           />
           <Input
+            v-if="isRust"
             :model-value="String(form.current_seed)"
             @update:model-value="v => { form.current_seed = Number(v) }"
             label="Current seed"
@@ -818,6 +919,11 @@ onMounted(async () => {
             :mono="true"
             class="sv__col-span2"
           />
+          <!-- Non-Rust: redirect to file manager for game-specific config -->
+          <Alert v-if="!isRust" tone="neutral" class="sv__col-span2">
+            Game-specific settings for {{ profile.label }} live in config files on the host — manage them in the
+            <Button variant="ghost" size="sm" icon="folder" @click="$router.push('/files')">File Manager</Button>
+          </Alert>
         </div>
       </form>
     </Panel>
@@ -931,6 +1037,12 @@ onMounted(async () => {
 /* Setup head */
 .sv__setup-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 10px; }
 
+/* TOML reveal row */
+.sv__toml-reveal { display: flex; align-items: center; }
+
+/* Pre inside codeblock — preserve whitespace, no extra margin */
+.sv__pre { margin: 0; white-space: pre; }
+
 /* Code block */
 .sv__codeblock {
   background: var(--surface-inset); border-radius: var(--radius-md);