Add deploy + destroy server flow; migrate to t5_<mode>_<slug>_<n> naming

Full server lifecycle management from Electric Cherry: pick game/mode/map/pluto
key in the Fleet page, EC provisions the deployment via Komodo, allocates a
port in 28960-28980, creates the 0o777 host dir, and starts the container.
Destroy button tears everything down (Komodo Destroy+Delete, rm -rf host dir,
transactional DB cleanup) and surfaces any partial-failure warnings inline.

Same phase cuts over to the new naming scheme (t5_zombie_cosmodrome_1 etc.).
Komodo entity names now match EC server names 1:1 (no more _/- transform), and
the map catalog carries friendly/slug/canonical for each of the 11 t5 zombie
maps. Server rows gain game_mode, map_slug, host_dir, config_file, game_id,
image, created_by, and destroyed_at columns for provisioning + audit.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

src/routes/+page.svelte

@@ -1,6 +1,7 @@
 <script lang="ts">
     import { onMount } from 'svelte';
     import ServerCard from '$ui/components/ServerCard.svelte';
+    import DeployServerDialog from '$ui/components/DeployServerDialog.svelte';
     import { statusByServer } from '$ui/stores/servers.js';
     import type { RosterPlayer, Health } from '$ui/stores/servers.js';
 
@@ -23,11 +24,16 @@
     }
 
     let servers = $state<ServerRow[]>([]);
+    let deployOpen = $state(false);
 
-    onMount(async () => {
+    async function refresh(): Promise<void> {
         const res = await fetch('/api/servers');
         const body = (await res.json()) as { servers: ServerRow[] };
         servers = body.servers;
+    }
+
+    onMount(() => {
+        refresh();
     });
 
     // Live server view — merge SSE data over the initial GET
@@ -62,7 +68,13 @@
             <h1>Fleet</h1>
             <span class="count">{servers.length} server{servers.length === 1 ? '' : 's'}</span>
         </div>
+        <div class="hdr-actions">
+            <button class="deploy" onclick={() => (deployOpen = true)}>Deploy new server</button>
+        </div>
     </header>
+
+    <DeployServerDialog bind:open={deployOpen} />
+
     {#if servers.length === 0}
         <p class="empty">no servers registered yet — check SERVERS_ROOT</p>
     {:else}
@@ -123,4 +135,17 @@
         border: 1px dashed var(--border);
         border-radius: var(--r-md);
     }
+    .hdr-actions { display: flex; gap: 10px; }
+    .deploy {
+        background: linear-gradient(180deg, var(--blue-500), var(--blue-600));
+        border: 1px solid var(--blue-400);
+        color: var(--cream);
+        border-radius: var(--r-sm);
+        padding: 10px 18px;
+        font-family: var(--font-body);
+        font-weight: 600;
+        cursor: pointer;
+        transition: box-shadow 0.15s;
+    }
+    .deploy:hover { box-shadow: var(--accent-glow); }
 </style>