Structured Komodo port diagnostics + probe button

komodoResolveGamePort silently returned null for six distinct failure
modes (unconfigured, no-name, unreachable, http-error, unparseable,
no-udp-in-response), which made "no game_port — Komodo did not return
one" indistinguishable from an auth failure or an unrecognized response
shape. Adds komodoResolvePortDetailed returning a discriminated union
with the failure reason, HTTP status, and a truncated response snippet.

extractUdpPort broadens to cover four more shapes seen in the wild:
extra host-port field names (HostPort/hostPort/host_port/PublicPort),
`type` as a protocol alias, host-network strings ("28962/udp"), and the
docker-inspect container-keyed form ({ "28960/udp": [{ HostPort }] }).
Arrays reached via a ports-flavored key now win over accidental matches
elsewhere in the tree.

New POST /api/servers/[name]/probe-komodo triggers a fresh lookup,
caches the port on success, and returns the structured result. The RCON
diagnostic panel gains a Probe Komodo button (shown when endpoint is
unresolved and Komodo is configured) that renders the snippet inline —
so unrecognized shapes surface directly instead of vanishing.

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

src/routes/api/servers/[name]/probe-komodo/+server.ts

@@ -0,0 +1,27 @@
+import { json } from '@sveltejs/kit';
+import type { RequestHandler } from './$types';
+import { komodoResolvePortDetailed } from '$lib/server/integrations/komodo.js';
+import { getServer, setServerField } from '$lib/server/fleet/servers.js';
+
+/**
+ * Trigger a fresh Komodo GetDeployment lookup for a specific server and
+ * return the structured result — including a snippet of the response so
+ * the UI can render "here's where we found the port" (or "here's what
+ * Komodo returned; extend extractUdpPort for this shape").
+ *
+ * On success, the resolved port is written to servers.game_port so the
+ * next RCON attempt uses it without waiting for another sweep tick.
+ */
+export const POST: RequestHandler = async ({ params }) => {
+    const name = params.name;
+    if (!name) return json({ ok: false, reason: 'no-name', detail: 'missing server name' }, { status: 400 });
+
+    const row = getServer(name);
+    if (!row) return json({ ok: false, reason: 'no-name', detail: `unknown server: ${name}` }, { status: 404 });
+
+    const result = await komodoResolvePortDetailed(name);
+    if (result.ok) {
+        setServerField(name, 'game_port', result.port);
+    }
+    return json(result);
+};