feat: migrate PiShock plugin to new API

The legacy do.pishock.com endpoint has been shut down. This migrates to
the new multi-step API flow:

1. Authenticate via auth.pishock.com to get user ID (cached in config)
2. Discover shockers via ps.pishock.com/GetUserDevices at plugin start
3. Operate shockers via api.pishock.com/Shockers/{id} with header auth

Also removes share codes (shockers are now auto-discovered), adds a
"Test Connection" button that sends a beep to verify credentials, and
adds CLAUDE.md for the repository.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: DASPRiD

.gitignore

@@ -1 +1,2 @@
 /target
+/.claude/settings.local.json

CLAUDE.md

@@ -0,0 +1,82 @@
+# CLAUDE.md
+
+This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.
+
+## Project Overview
+
+VRC OSC Manager is a Rust desktop application for managing multiple VRChat OSC plugins. It runs as a system tray application on Linux and Windows, with a Slint-based GUI for configuration.
+
+## Build & Development Commands
+
+```bash
+# Build (requires system libs on Linux: libdbus-1-dev libssl-dev libxdo-dev)
+cargo build
+
+# Run
+cargo run
+
+# Check without building
+cargo check
+
+# Lint
+cargo clippy -- -D warnings
+
+# Format check
+cargo fmt --all -- --check
+
+# Format fix
+cargo fmt --all
+
+# Cross-compile for Windows from Linux
+cross build --target x86_64-pc-windows-gnu --release
+```
+
+There are no tests in this project.
+
+## Architecture
+
+The application has two main threads:
+1. **UI thread** — runs the Slint event loop (`src/ui.rs`, `src/main.rs`)
+2. **Tokio runtime** — runs all background tasks (`src/background.rs`)
+
+Communication between UI and background uses `tokio::sync::mpsc` channels (`UiEvent` for UI→background, `AppEvent` for background→UI).
+
+### Background Task System
+
+Background tasks are managed via `tokio-graceful-shutdown` subsystems, all started in `src/background.rs`:
+
+- **OrchestrateTask** — central coordinator handling app/UI events and routing commands
+- **VrchatMonitorTask** — detects VRChat process start/stop via `sysinfo`
+- **PluginManagerTask** — starts/stops plugins based on VRChat activity and user config
+- **OscReceiverTask** / **OscSenderTask** — UDP OSC message I/O
+- **OscQueryTask** — HTTP server for VRChat's OSCQuery protocol
+- **TrayTask** — system tray icon management
+- **ConfigWriterTask** — debounced config file persistence
+
+### Plugin System
+
+Plugins implement the `Plugin` trait (`src/plugins/mod.rs`). The `define_plugins!` macro registers all plugins. Each plugin:
+- Has its own config managed via `ConfigManager::with_plugin_id()`
+- Receives/sends OSC messages through `ChannelManager` (broadcast receiver + mpsc sender)
+- Registers OSCQuery endpoints
+- Can optionally provide a settings UI panel
+
+Current plugins: `media_control`, `watch`, `pishock`.
+
+### UI Layer
+
+- UI is defined in Slint (`.slint` files in `ui/`)
+- `build.rs` compiles Slint files and converts tray icons (RGBA pixel reorder for Linux, `.rc` embedding for Windows)
+- `slint::include_modules!()` in `main.rs` generates Rust bindings from Slint
+
+### Config System
+
+`src/utils/config.rs` provides `ConfigManager` and `ConfigHandle<T>`. Configs are TOML files stored in the OS config directory under `vrc-osc-manager/`. `ConfigHandle` wraps `Arc<RwLock<T>>` and triggers async writes through the `ConfigWriterTask`.
+
+### Platform Abstraction
+
+`src/platform/` contains `linux.rs` and `windows.rs` behind `cfg` gates, implementing the `Platform` trait for auto-start and folder-open functionality.
+
+### mDNS/Service Discovery
+
+The app broadcasts OSCQuery and OSC services via mDNS (`searchlight` crate) so VRChat can discover it automatically.