voice_app/
├── Cargo.toml                 # Workspace manifest; links all crates
├── README.md                  # Project entry point and documentation index
├── .gitignore                 # Exclude /target, .env, and binary/database files
├── LICENSE                    # Project licensing (e.g., AGPLv3 or MIT)
├── Documentation/             # Comprehensive technical specifications and plans
│   ├── High_level_plan/       # Technical specs and architecture overview
│   ├── Low_level_plan/        # Implementation details and data flow
│   ├── Mile_Stones/           # Code-level step-by-step checklists
│   ├── Standards/             # Strict rules for code quality and testing
│   └── Concept/               # UI mockups and aesthetic references
├── core_protocol/             # Shared binary logic and network Enums
│   ├── Cargo.toml             # deps: serde, bincode, uuid, chrono, thiserror, secrecy
│   └── src/
│       ├── lib.rs             # Exports modules
│       ├── tcp_events.rs      # Enums for reliable Auth/Chat/Admin events
│       ├── udp_packets.rs     # Structs for VoiceFrame headers and payload
│       └── constants.rs       # Fixed specs: 48kHz, 20ms frame (960 samples)
├── server_node/               # Headless relay, DB host, and Web Admin dashboard
│   ├── Cargo.toml             # deps: tokio, sqlx, axum, rust-embed, argon2, jwt, dashmap, tracing, anyhow, tokio-util, tokio-serde
│   ├── migrations/            # SQLx .sql scripts for SQLite schema persistence
│   ├── web_dashboard/         # Admin UI source (HTML/CSS/JS) for embedding
│   └── src/
│       ├── main.rs            # Entry: Spawns TCP(8080), UDP(8080), HTTP(8081) tasks
│       ├── state.rs           # Live concurrent State: DashMap tracking
│       ├── database.rs        # SQLite logic: Auth and Persistent settings
│       ├── tcp_router.rs      # Logic for reliable control lanes
│       ├── udp_relay.rs       # High-speed voice packet forwarding
│       ├── web_api.rs         # Axum REST API and embedded file serving
│       ├── telemetry.rs       # Prometheus /metrics endpoint for server health
│       └── auth_service.rs    # Argon2 hashing and JWT token generation
├── client_node/               # Desktop application, audio engine, and plugin host
│   ├── Cargo.toml             # deps: tokio, eframe, cpal, audiopus, webrtc-dsp, extism, tracing, anyhow, tokio-util, tokio-serde
│   └── src/
│       ├── main.rs            # Entry: Initializes eframe and background Tokio runtime
│       ├── app_state.rs       # Actor Pattern bridge for non-blocking UI/Net
│       ├── ui/                # egui Graphical Interface
│       │   ├── mod.rs         # Module exports
│       │   ├── layout.rs      # Main window shell
│       │   ├── side_panel.rs  # Channel tree and connection UI
│       │   └── chat_area.rs   # Text messages and system logs
│       ├── network/           # Internet connectivity modules
│       │   ├── mod.rs         # Module exports
│       │   ├── control.rs     # TCP: TLS, Heartbeats, Auto-reconnect
│       │   ├── voice.rs       # UDP: Jitter buffer (40ms), Seq ordering, Decryption
│       │   └── chaos.rs       # UDP Middleware: Artificial packet loss/latency injection
│       ├── audio/             # Real-time pipeline with 20ms frames
│       │   ├── mod.rs         # Module exports
│       │   ├── capture.rs     # Microphone -> Lock-free Ringbuffer
│       │   ├── dsp.rs         # Noise suppression & Echo cancellation (WebRTC)
│       │   ├── codec.rs       # Opus Encoding/Decoding (48kbps VBR)
│       │   └── playback.rs    # Ringbuffer -> Speaker output
│       └── plugins/           # Wasm Extension Sandbox
│           ├── mod.rs         # Module exports
│           ├── runtime.rs     # Extism Wasm runtime initialization
│           └── hooks.rs       # Event triggers: OnVoice, OnMessage, OnJoin
├── tests/                     # Integration and Load Testing
│   └── load_tester.rs         # Standalone binary simulating 100+ concurrent clients
├── deploy/                    # Automation and containerization assets
│   ├── Dockerfile             # Multi-stage build for tiny server images
│   ├── docker-compose.yml     # One-click deployment for Docker/NAS users
│   └── voice_app.service      # Systemd unit file for Linux hosting
├── scripts/                   # Zero-conf installation scripts
│   ├── install.sh             # Linux "One-liner" installer (curl | bash)
│   └── update.sh              # Automated binary fetcher from GitHub
└── config/
    └── default_config.toml    # Default ports, SQLite paths, and network settings