feat: IMAP mail sync with thread-to-contact matching (PRD §6.1)

Real IMAP connection via imapflow library:
- Connects to IMAP server (IMAPFlow, TLS on port 993)
- Fetches recent messages (configurable limit, default 20)
- Extracts: from, fromEmail, subject, date, snippet (200 chars)
- Thread-to-contact matching (PRD §6.1):
  1. Match sender email against persons table
  2. If no person match, extract domain and match against company.website
  3. Returns matchedCompany + matchedPerson for each email
- Audit-logged (action: crm.mailsync:imap)
- Zod validated (host, port, user, password, folder, limit)
- 502 on IMAP connection failure with detail
- 400 on validation failure

Tested: invalid creds → 502 'IMAP connection failed', missing host → 400

skills/ASR/scripts/asr.ts

@@ -0,0 +1,27 @@
+import ZAI from 'z-ai-web-dev-sdk';
+import fs from 'fs';
+import path from 'path';
+
+async function main(inputFile: string) {
+	if (!fs.existsSync(inputFile)) {
+		console.error(`Audio file not found: ${inputFile}`);
+        return;
+	}
+
+	try {
+		const zai = await ZAI.create();
+
+		const audioBuffer = fs.readFileSync(inputFile);
+		const file_base64 = audioBuffer.toString('base64');
+
+		const result = await zai.audio.asr.create({ file_base64 });
+
+		console.log('Transcription result:');
+		console.log(result.text ?? JSON.stringify(result, null, 2));
+	} catch (err: any) {
+		console.error('ASR failed:', err?.message || err);
+	}
+}
+
+main('./output.wav');
+