refactor: restructure add-gmail skill for new skill architecture

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

.claude/skills/add-gmail/add/src/channels/gmail.test.ts

@@ -0,0 +1,71 @@
+import { describe, it, expect, vi, beforeEach } from 'vitest';
+
+import { GmailChannel, GmailChannelOpts } from './gmail.js';
+
+function makeOpts(overrides?: Partial<GmailChannelOpts>): GmailChannelOpts {
+  return {
+    onMessage: vi.fn(),
+    onChatMetadata: vi.fn(),
+    registeredGroups: () => ({}),
+    ...overrides,
+  };
+}
+
+describe('GmailChannel', () => {
+  let channel: GmailChannel;
+
+  beforeEach(() => {
+    channel = new GmailChannel(makeOpts());
+  });
+
+  describe('ownsJid', () => {
+    it('returns true for gmail: prefixed JIDs', () => {
+      expect(channel.ownsJid('gmail:abc123')).toBe(true);
+      expect(channel.ownsJid('gmail:thread-id-456')).toBe(true);
+    });
+
+    it('returns false for non-gmail JIDs', () => {
+      expect(channel.ownsJid('12345@g.us')).toBe(false);
+      expect(channel.ownsJid('tg:123')).toBe(false);
+      expect(channel.ownsJid('dc:456')).toBe(false);
+      expect(channel.ownsJid('user@s.whatsapp.net')).toBe(false);
+    });
+  });
+
+  describe('name', () => {
+    it('is gmail', () => {
+      expect(channel.name).toBe('gmail');
+    });
+  });
+
+  describe('isConnected', () => {
+    it('returns false before connect', () => {
+      expect(channel.isConnected()).toBe(false);
+    });
+  });
+
+  describe('disconnect', () => {
+    it('sets connected to false', async () => {
+      await channel.disconnect();
+      expect(channel.isConnected()).toBe(false);
+    });
+  });
+
+  describe('constructor options', () => {
+    it('accepts custom poll interval', () => {
+      const ch = new GmailChannel(makeOpts(), 30000);
+      expect(ch.name).toBe('gmail');
+    });
+
+    it('defaults to unread query when no filter configured', () => {
+      const ch = new GmailChannel(makeOpts());
+      const query = (ch as unknown as { buildQuery: () => string }).buildQuery();
+      expect(query).toBe('is:unread category:primary');
+    });
+
+    it('defaults with no options provided', () => {
+      const ch = new GmailChannel(makeOpts());
+      expect(ch.name).toBe('gmail');
+    });
+  });
+});