WordSocket compatibility with REEID Translate

Plugin capabilities

• Realtime event delivery from WordPress to connected browsers via WebSocket, with automatic SSE fallback when WebSocket is unavailable.
• Publishes encrypted, HMAC-signed realtime events to the WPSignal service when configured triggers fire (e.g., post published, comment approved, option updated, and custom post types).
• Browser-side handling: the client decrypts received payloads and dispatches `wpsignal:*` DOM events; the relay/server is described as not having access to plaintext message content.
• Realtime collaboration integration for Gutenberg: when Gutenberg real-time collaboration is available and enabled, WordSocket registers as a WebSocket-based Yjs sync provider and replaces the default HTTP polling transport for collaborative editing.
• Connection/auth behavior: supports automatic one-click connection via the WPSignal dashboard (no API key required) and manual connection via API key; uses short-lived JWTs (5 minutes) with automatic refresh.
• Per-site isolation and token/channel extensibility: uses per-site JWT signing secrets and supports filters (`wpsignal_token_channels` and `wpsignal_token_channel_prefixes`) to extend token channels and namespace permissions without modifying core.
• Admin controls and diagnostics: includes an admin explorer page with a live event log, publish test event form, and token inspector; includes an admin toggle to disable the collaboration provider and fall back to WordPress HTTP polling.