GConnect v2.2.2

What's New in v2.2.2

Ultra-Low Latency PCM Streaming: AudioWorklet-based fractional linear downsampling of client microphone input to 16,000 Hz 16-bit mono PCM, streamed over authenticated binary WebSocket (/ws/audio).
Container Audio Playback: Plays container sound output (TTS, voice agents, etc.) back through user's chosen client speakers/headphones via AudioContext targeting sinkId with overrun ceiling management.
Virtual ALSA Device in Docker: Configured /etc/asound.conf mapping default capture and playback to container overlayfs FIFOs (/tmp/.gconnect_audio/). Standard Python libraries (speech_recognition, sounddevice, pyaudio) detect and use the virtual audio bridge out-of-the-box without code changes.
Google Meet-Style Audio UI: Added [🎙️ Audio] top toolbar button and settings modal with microphone & speaker dropdowns, hardware mute toggles, live VU meter, and 1-click active mic cluster takeover.
Audio Protection & Network Resilience: 50ms pre-buffering circular jitter buffer (AudioRingBuffer) and software audio ducking gate (DuckingGate) applying -18dB attenuation during container playback to eliminate feedback loops.
Verification Tool: Included voice_test.py at workspace root supporting 3-second recording and dual-tone harmonic chime playback.

Fixed 'Applying Configuration...' Freeze: frontend/js/share.js now awaits backend_info to ensure the sidecar has restarted and passed its health check before refreshing dashboard state, updating credentials cleanly.
Port 8000 Release Cooldown: In src-tauri/src/main.rs, added an 800ms cooldown before restarting the backend on mode changes, allowing the Windows socket stack to release port 8000.
Auth Token File Reuse: In backend/auth.py, get_token() now reuses the existing auth_token file if present rather than overwriting it, preserving credentials across sidecar restarts.

Dynamic Reconnect: GConnect automatically detects when Docker Desktop is launched after GConnect is already running without needing an app restart.
Graceful Disconnect Recovery: If Docker stops or restarts, GConnect safely transitions container state to offline and reconnects automatically upon the next health check.
Throttled Probing: Reconnection attempts are protected by thread locks and cooldown timers to prevent connection spamming.

Hardware-Level Verification: Directly queries pynvml, torch.cuda, and nvidia-smi to verify an actual physical NVIDIA adapter exists before issuing Docker --gpus all / DeviceRequest.
Eliminates 500 Daemon Crashes: Prevents nvidia-container-cli: initialization error: nvml error: no adapters were found crashes on systems with NVIDIA toolkits/CDI specs installed but running on Intel/AMD GPUs or VMs, starting seamlessly in CPU mode.

Permit X-Client-Id: Added X-Client-Id to CORS_ALLOW_HEADERS and _tauri_cors_headers in backend/auth.py.
Eliminates Blocked APIs: Resolves preflight OPTIONS rejections for /api/files and /api/container/status inside the desktop app, preventing "Error loading files" and false "Docker is not running" warnings.

Thread-Safe Connection Monitor: Added ConnectionTracker in backend/connection_tracker.py that tracks all connected client machines in real time.
Physical Device Grouping: Persistent gconnect_client_id prevents duplicate tab/terminal counts from inflating the connected device numbers.
Local vs Remote Classification: Accurately distinguishes This PC (Host) from Remote Teammates (LAN/Tailscale).
Client OS & Platform Detection: Automatically identifies client devices (e.g. Mac (Chrome), Windows PC (Edge), Linux (Firefox)).
Host Dashboard UI: Live "Connected Devices" card with device count badge (#shareBtnBadge), status bar indicator (#statusBarClients), and expandable client list.

Vibrant PS1 Shell Prompt: Bold Cyan host (\e[1;36m), Bold Green path (\e[1;32m), and Bold White command cursor (\e[1;37m).
Command & Output Differentiation: Active commands echo in Bold White with automatic debug trap resetting command outputs to crisp, readable gray.
Windows Host CMD & Bash Support: Fallback ANSI prompt configurations for Windows PTY and host bash.

Enabled cursorBlinking: "blink" for clear cursor visibility.
Enabled cursorSmoothCaretAnimation: "on" for fluid caret navigation across lines and mouse positioning.

Added "Import File(s)" button with multi-file picker directly in the workspace explorer header.
Implemented POST /api/files/upload backend endpoint with path traversal defense and filename sanitization.

Integrated dedicated 24px bottom status bar (#appStatusBar) keeping terminal text cleanly elevated above the Windows taskbar.
Real-time line/column cursor tracker, file encoding, language mode, Docker sandbox state, and problems indicator.

Fluid terminal scrolling (smoothScrollDuration: 150) matching Monaco.
Right-click terminal context menu (Copy, Paste, Select All, Clear) + copy-on-select.