Initial commit — SvelteKit fleet manager for T5 Plutonium servers

Ports push_scripts.sh (1497 lines of bash) to a SvelteKit + SQLite web app
that manages a fleet of T5 Plutonium servers running on Komodo. Same push
and beta workflow as the shell script, with a live SSE pipeline view, a
!rt-token-gated auth modal that hard-pauses deployments on stale tokens,
per-file audit diffs, and a Komodo-container deployment target.

- Push/beta engines port the exact filter, held-by-beta, conflict, and
  stale-backup rules from the shell script
- SQLite (better-sqlite3) replaces script_metadata.json; a one-shot
  importer moves legacy state over on first boot
- 16 vitest tests cover push add/update/skip, beta open→rollback,
  open→promote, conflict guards, sweep frozen/manual branches, and IW4M
  login/status parsing
- docker/ + komodo/stack.toml deploy as a managed container on the same
  host as the game servers, /root/zombies bind-mounted at the same path
  the shell script used

src/routes/api/events/servers/+server.ts

@@ -0,0 +1,33 @@
+import { subscribe } from '$lib/server/pipeline/bus.js';
+
+const encoder = new TextEncoder();
+const HEARTBEAT_MS = 20_000;
+
+export async function GET() {
+    let heartbeat: NodeJS.Timeout | null = null;
+    let unsubscribe: (() => void) | null = null;
+
+    const stream = new ReadableStream<Uint8Array>({
+        start(controller) {
+            unsubscribe = subscribe((event) => {
+                if (event.type === 'server-status') {
+                    controller.enqueue(encoder.encode(`event: server-status\ndata: ${JSON.stringify(event)}\n\n`));
+                }
+            });
+            controller.enqueue(encoder.encode(': hello\n\n'));
+            heartbeat = setInterval(() => controller.enqueue(encoder.encode(': ping\n\n')), HEARTBEAT_MS);
+        },
+        cancel() {
+            if (heartbeat) clearInterval(heartbeat);
+            if (unsubscribe) unsubscribe();
+        }
+    });
+
+    return new Response(stream, {
+        headers: {
+            'Content-Type': 'text/event-stream',
+            'Cache-Control': 'no-cache, no-transform',
+            Connection: 'keep-alive'
+        }
+    });
+}