feat: add email summary script and configuration

- Add Tencent enterprise email IMAP config to TOOLS.md
- Create email_summary.py script to fetch yesterday's emails
- Set up daily cron job at 9 AM
- Note: fj@77ircloud.com emails are marked as important

skills-lock.json

@@ -16,6 +16,11 @@
       "sourceType": "github",
       "computedHash": "6962db07127ee540a56e4677f65576d0727668a1d67f7da8bc978f10791c2bfe"
     },
+    "lobster-email": {
+      "source": "fallomai/lobster-email",
+      "sourceType": "github",
+      "computedHash": "e29889a802d5a017950ef3bcffe5c0fa191d556281118dff329d1c6c0ce689d1"
+    },
     "pdf": {
       "source": "anthropics/skills",
       "sourceType": "github",