Add live network totals for nodes, users, published media, and posts, including local-node counts and media-count federation support.

Hop-State: A_06FPDCRHF0BSN8BDYYXW3ER
Hop-Proposal: R_06FPDCQJTBM7EZK7BXFA8D0
Hop-Task: T_06FPD59337GBJTP7D756FEG
Hop-Attempt: AT_06FPD59337493XRD47TM0H0

src/lib/swarm/stats.test.ts

@@ -0,0 +1,42 @@
+import { describe, expect, it } from 'vitest';
+import { aggregateSwarmStats } from './registry';
+
+describe('aggregateSwarmStats', () => {
+  it('includes the local node and totals active peer statistics', () => {
+    const result = aggregateSwarmStats([
+      { isActive: true, userCount: 3, postCount: 24, mediaCount: 7 },
+      { isActive: true, userCount: 2, postCount: 8, mediaCount: null },
+      { isActive: false, userCount: 50, postCount: 500, mediaCount: 100 },
+    ], {
+      users: 4,
+      posts: 12,
+      media: 5,
+    }, true);
+
+    expect(result).toEqual({
+      totalNodes: 4,
+      activeNodes: 2,
+      totalUsers: 9,
+      totalPosts: 44,
+      totalMedia: 12,
+    });
+  });
+
+  it('excludes local counts when the node is not publicly participating', () => {
+    const result = aggregateSwarmStats([
+      { isActive: true, userCount: 3, postCount: 24, mediaCount: 7 },
+    ], {
+      users: 100,
+      posts: 200,
+      media: 300,
+    }, false);
+
+    expect(result).toEqual({
+      totalNodes: 1,
+      activeNodes: 1,
+      totalUsers: 3,
+      totalPosts: 24,
+      totalMedia: 7,
+    });
+  });
+});