Add Visage v2.1.0 - facial recognition plugin

[cc1234475]

Description

Adds Visage, a facial recognition plugin that identifies performers from scene sprites using a Gradio-powered face recognition backend. The plugin injects UI buttons into Stash scene pages to trigger face detection, runs a side-by-side comparison modal, and lets users confirm matches to add performers to scenes.

Files

• plugins/visage/visage.yml — Plugin configuration (name, version 2.1.0, CSP settings for Gradio API endpoints)
• plugins/visage/visage.js — Bundled plugin code (React components via Stash PluginApi, GraphQL queries, Gradio client integration)
• plugins/visage/visage.css — Modal and toolbar styles

Notes

• Requires a running Gradio server (default: https://cc1234-stashface-onnx.hf.space, configurable to any endpoint)
• The plugin is UI-only (no exec tasks) and uses Stash's embedded JavaScript plugin interface
• This is an LLM-assisted contribution per the repository's guidelines — code was reviewed and tested by a human