Split NATS modules: splitter, WORM bloom archive, aggregator, docs-master

Each module has SUMMARY.md and NATS.md (who sends/receives, subject
addresses, payload). Tests: splitter 3, worm 3, aggregator 2.
Forgejo repos pushed separately; this commit keeps them in the monorepo.

packages/verae-request-splitter/test/splitRequest.test.js

@@ -0,0 +1,32 @@
+import { describe, it } from 'node:test';
+import assert from 'node:assert/strict';
+import { splitRequest, sha256Hex } from '../src/splitRequest.js';
+
+describe('splitRequest', () => {
+  it('hash-only has no archive puts', () => {
+    const out = splitRequest({ data: 'hello' });
+    assert.equal(out.chain.sha256, sha256Hex('hello'));
+    assert.equal(out.archivePuts.length, 0);
+    assert.equal(out.includeAttached, false);
+  });
+
+  it('splits public metadata and two files onto archive puts', () => {
+    const out = splitRequest({
+      data: 'hello',
+      publicMetadata: { title: 't' },
+      files: [
+        { path: 'a.txt', data: 'A' },
+        { path: 'b.txt', data: 'B' },
+      ],
+      includeAttached: true,
+    });
+    assert.equal(out.archivePuts.length, 3);
+    assert.equal(out.archivePuts.filter((p) => p.kind === 'file').length, 2);
+    assert.equal(out.includeAttached, true);
+    assert.equal(out.chain.sha256, sha256Hex('hello'));
+  });
+
+  it('throws without data or sha256', () => {
+    assert.throws(() => splitRequest({}), /data or sha256/);
+  });
+});