feat: failsafe mode

[ym]

The feature will be ported to dev later once this PR is merged

[Copilot]

Pull Request Overview

This PR implements a failsafe mode feature for the JetKVM application to handle critical process failures gracefully, particularly video capture crashes. When a failure is detected, the system enters failsafe mode, displays relevant UI notifications, restricts access to affected features, and provides crash log download functionality.

• Adds server-side crash detection and failsafe mode activation logic
• Implements UI overlays and banners to notify users of failsafe mode
• Blocks video-related RPC methods when in failsafe mode
• Provides crash log retrieval and GitHub issue reporting workflow

Reviewed Changes

Copilot reviewed 18 out of 18 changed files in this pull request and generated 5 comments.

Show a summary per file

File	Description
failsafe.go	New file implementing core failsafe detection logic and crash log handling
main.go	Adds failsafe mode check at application startup
webrtc.go	Integrates failsafe mode notifications into session lifecycle events
video.go	Adds failsafe notification to video state retrieval
native.go	Passes failsafe state to native subsystem initialization
internal/native/native.go	Adds disable flag to skip native initialization in failsafe mode
internal/native/cgo_linux.go	Guards all CGO calls with failsafe disabled checks
jsonrpc.go	Registers new RPC handler for retrieving failsafe logs
log.go	Adds dedicated logger for failsafe subsystem
cmd/main.go	Enhances crash dump creation with symlink management
ui/src/hooks/stores.ts	Adds failsafe mode state management store
ui/src/hooks/useJsonRpc.ts	Blocks video-related RPC methods in failsafe mode
ui/src/routes/devices.$id.tsx	Integrates failsafe mode UI and conditionally renders video
ui/src/routes/devices.$id.settings.tsx	Disables video/hardware settings navigation in failsafe mode
ui/src/routes/devices.$id.settings.general.reboot.tsx	Adds loading state to reboot dialog
ui/src/components/FaileSafeModeOverlay.tsx	New overlay component for failsafe mode with log download
ui/src/components/FailSafeModeBanner.tsx	New banner component for settings page failsafe notification
ui/src/index.css	Adds diagonal stripes CSS class for failsafe UI

Comments suppressed due to low confidence (1)

ui/src/components/FaileSafeModeOverlay.tsx:1

• The filename 'FaileSafeModeOverlay.tsx' has an inconsistent spelling - 'Faile' should be 'Fail'. This creates a mismatch with the exported component name 'FailSafeModeOverlay' and the import path.

import { useState } from "react";

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[IDisposable]

Should we delay trashing the crashlog until we've exited the failsafe mode through some action?