Show fresh player capacity on Fleet cards

tests/unit/server-status.test.ts

@@ -28,6 +28,30 @@ async function setup() {
 }
 
 describe('database fleet and container readiness', () => {
+    it('publishes capacity from accepted monitoring samples and clears it on the next failed check', async () => {
+        const { inspect, rcon, fanoutStatus } = await setup();
+        const { GET } = await import('../../src/routes/api/servers/+server.js');
+        const { subscribe } = await import('../../src/lib/server/pipeline/bus.js');
+        vi.useFakeTimers({ toFake: ['Date'] });
+        const at = Date.parse('2026-10-07T12:00:00Z');
+        vi.setSystemTime(at);
+        inspect.mockResolvedValue({ ok: true, state: 'running' });
+        rcon.mockResolvedValue({ ok: true, endpoint: { host: 'localhost', port: 28960 }, rawReply: 'status',
+            status: { players: 3, capacity: 4, map: 'zombie_theater', gametype: 'zom', roster: [] } });
+        const events: unknown[] = [];
+        const stop = subscribe(event => { if (event.type === 'server-status') events.push(event); });
+        try {
+            await fanoutStatus();
+            expect(events.at(-1)).toMatchObject({ entries: [{ capacity: 4, capacityObservedAt: new Date(at).toISOString() }] });
+            expect((await GET().json()).servers[0]).toMatchObject({ capacity: 4, capacity_observed_at: new Date(at).toISOString() });
+            vi.setSystemTime(at + 30_000);
+            rcon.mockResolvedValue({ ok: false, endpoint: null, reason: 'timeout', detail: 'No reply' });
+            await fanoutStatus();
+            expect(events.at(-1)).toMatchObject({ entries: [{ capacity: null, capacityObservedAt: null }] });
+            expect((await GET().json()).servers[0]).toMatchObject({ capacity: null, capacity_observed_at: null });
+        } finally { stop(); }
+    });
+
     it('requires two distinct failed monitoring checks, preserves diagnostics, and resets on success', async () => {
         const { inspect, rcon, fanoutStatus, getServer } = await setup();
         const { GET } = await import('../../src/routes/api/servers/+server.js');