docs: mirror OpenWA v0.25 sync (webhook events, idempotency header, receipts)
docs: Tier 2 improvements - event log, reactions, DLQ replay, scheduled send, base64 media, media-reply workaround
docs: add inline notes explaining SSRF_ALLOWED_HOSTS values - your-site-name = Frappe/ERPNext site name - your-server-ip = IP used to connect from VM to host - minio = MinIO hostname (if used for file storage)
docs: expand SSRF troubleshooting with site name + minio guidance
Wiki: add session disconnect troubleshooting + changelog entry for health check fix
Wiki: force-kill recovery strategy for failed sessions
Wiki: update failed session recovery instructions
Add stale session recovery to Troubleshooting
Add comprehensive wiki pages: Installation, Configuration, Architecture, API Reference, Message Flows, Custom Fields, Troubleshooting, Changelog