fix(whatsapp): upgrade Baileys 6.7→6.17, fix proto import and 515 restart

Baileys 6.7.21 silently failed the pairing handshake. Upgrade to 6.17.16
which fixes this. Three related issues:

1. proto is no longer a named ESM export in 6.17.x — use createRequire
   to import via CJS (matching the proven v1 pattern).
2. Setup auth script didn't handle the 515 stream restart that WhatsApp
   sends after successful pairing. Refactored to reconnect (matching v1's
   connectSocket(isReconnect) pattern) instead of hanging until timeout.
3. Added succeeded guard and process.exit(0) to prevent timeout race
   after successful auth.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

.claude/skills/setup/SKILL.md

@@ -15,7 +15,7 @@ Use `AskUserQuestion` with these options:
 2. **No thanks** — description: "I'll approve each command individually as it comes up."
 3. **Show me the list first** — description: "Show me exactly which commands will be pre-approved before I decide."
 
-If they pick option 1: read `.claude/skills/setup/setup-permissions.json` and use the Skill tool to invoke `update-config` with: "Add these permissions to the project settings allow list: <paste the JSON array>".
+If they pick option 1: read `.claude/skills/setup/setup-permissions.json`, then read the project settings file at `.claude/settings.json` (create it if it doesn't exist with `{}`), and directly edit it to add/merge the permissions into the `permissions.allow` array. Do NOT use the `update-config` skill.
 
 If they pick option 3: read and display `.claude/skills/setup/setup-permissions.json`, then re-ask with just options 1 and 2.