0.5.3 — Formation mesh multi-speaker support

What's Changed

Fixes multi-speaker Formation/mesh setups. Every mesh member relays the others' messages, so the integration previously latched onto the first node in the list and could show the wrong now-playing track, artwork, and volume. It now selects the node matching the configured host and filters WebSocket messages to that speaker.

• Restore get_version() that was lost in a 0.5.x merge (fixes config flow).
• Select the mesh node matching this host instead of nodes[0].
• Only handle WebSocket messages from this speaker's own node (via sendingNodeID, tile keys, and sinkNodeIDs).
• Fetch volume and current track once the WebSocket is connected; clear state when nothing is playing.

Full PR: Fix/formation mesh support by @torchtarget in #2

New Contributors

• @torchtarget made their first contribution in #2 🎉

Full Changelog: v0.5.2...v0.5.3