* feat(cloud): Use Websocket signaling in cloud mode
* refactor: Enhance WebRTC signaling and connection handling
* refactor: Improve WebRTC connection management and logging in KvmIdRoute
* refactor: Update PeerConnectionDisconnectedOverlay to use Card component for better UI structure
* refactor: Standardize metric naming and improve websocket logging
* refactor: Rename WebRTC signaling functions and update deployment script for debug version
* fix: Handle error when writing new ICE candidate to WebRTC signaling channel
* refactor: Rename signaling handler function for clarity
* refactor: Remove old http local http endpoint
* refactor: Improve metric help text and standardize comparison operator in KvmIdRoute
* chore(websocket): use MetricVec instead of Metric to store metrics
* fix conflicts
* fix: use wss when the page is served over https
* feat: Add app version header and update WebRTC signaling endpoint
* fix: Handle error when writing device metadata to WebRTC signaling channel
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Co-authored-by: Siyuan Miao <i@xswan.net>