docs: mirror OpenWA v0.25 sync (webhook events, idempotency header, receipts)
docs: add OpenWA 0.10.9+ features, new endpoints, env vars, status.received
docs: add OpenWA v0.10.6 features (edit, status, groups, labels, calls, search, chat, profile, channels)
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: add minio to SSRF_ALLOWED_HOSTS examples
docs: replace hardcoded site name/IP with generic placeholders in SSRF examples
wiki: add full .env template with SSRF site name + IP whitelist
Add comprehensive wiki pages: Installation, Configuration, Architecture, API Reference, Message Flows, Custom Fields, Troubleshooting, Changelog