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/api/servers/+server.ts

@@ -1,8 +1,10 @@
 import { json } from '@sveltejs/kit';
 import { listServers, heldByBeta } from '$lib/server/fleet/servers.js';
 import { classifyHealth } from '$lib/server/fleet/health.js';
+import { createServer } from '$lib/server/fleet/create.js';
 import { config, komodoConfigured, rconConfigured } from '$lib/server/config.js';
 import type { RconPlayer } from '$lib/server/integrations/rcon.js';
+import type { GameMode } from '$lib/server/fleet/map-aliases.js';
 
 function safeJson<T>(raw: string | null): T | null {
     if (!raw) return null;
@@ -35,3 +37,34 @@ export async function GET() {
         }
     });
 }
+
+export async function POST({ request }: { request: Request }) {
+    const body = (await request.json().catch(() => ({}))) as {
+        gameMode?: string;
+        mapSlug?: string;
+        plutoKey?: string;
+    };
+    if (typeof body.gameMode !== 'string' || typeof body.mapSlug !== 'string' || typeof body.plutoKey !== 'string') {
+        return json(
+            { ok: false, error: 'gameMode, mapSlug, and plutoKey are required strings', kind: 'bad-request' },
+            { status: 400 }
+        );
+    }
+    if (body.plutoKey.trim().length === 0) {
+        return json({ ok: false, error: 'plutoKey cannot be empty', kind: 'bad-request' }, { status: 400 });
+    }
+
+    const result = await createServer({
+        gameMode: body.gameMode as GameMode,
+        mapSlug: body.mapSlug,
+        plutoKey: body.plutoKey,
+        createdBy: 'ui'
+    });
+    if (!result.ok) {
+        const status = result.kind === 'unconfigured' ? 503
+            : result.kind === 'unknown-map' || result.kind === 'no-slot' || result.kind === 'no-port' ? 409
+            : 500;
+        return json({ ok: false, error: result.message, kind: result.kind }, { status });
+    }
+    return json({ ok: true, name: result.name, port: result.port });
+}