🔔 PortSLM → Slack relay

This Space forwards Hugging Face webhook events for AICPADSLIM/PortSLM-Qwen2.5-VL-3B-v2 to Slack (#assist-hps).

Webhook endpoint: POST /webhooks/slack

Configure a webhook at https://huggingface.co/settings/webhooks pointing to https://<this-space>.hf.space/webhooks/slack with the same secret.