Convert to use typescript, implement eslint

README.md

@@ -18,7 +18,7 @@ cd corsair-lcd-control
 npm install
 ```
 
-`postinstall` automatically rebuilds native modules for Electron using `@electron/rebuild`.
+`postinstall` rebuilds native USB modules for Electron.
 
 ## Development
 
@@ -26,13 +26,15 @@ npm install
 npm start
 ```
 
+Compiles TypeScript to `build/`, then launches Electron with the compiled output.
+
 ## Build
 
 ```bash
 npm run build
 ```
 
-Produces platform-specific packages:
+Compiles TypeScript, then produces platform-specific packages via electron-builder:
 
 | Platform | Format |
 |----------|--------|
@@ -40,6 +42,14 @@ Produces platform-specific packages:
 | macOS    | `.dmg` |
 | Windows  | `.exe` (NSIS) |
 
+## Lint
+
+```bash
+npm run lint
+```
+
+Runs ESLint with `typescript-eslint` (`recommendedTypeChecked`) across all `src/` TypeScript files.
+
 ## Rebuild Native Modules
 
 If native modules fail to load after a Node.js or Electron upgrade:
@@ -48,9 +58,26 @@ If native modules fail to load after a Node.js or Electron upgrade:
 npm run rebuild
 ```
 
+## Project Structure
+
+```
+├── src/
+│   ├── main.ts          # Electron main process
+│   ├── preload.ts       # Context bridge for IPC
+│   ├── renderer.ts      # Renderer UI logic
+│   ├── index.html       # Main window HTML
+│   └── styles.css       # Dark theme styles
+├── assets/
+│   └── icon.png         # System tray icon
+├── build/               # Compiled JS output (gitignored)
+├── tsconfig.json        # TypeScript config
+├── eslint.config.js     # ESLint config
+└── package.json
+```
+
 ## Capabilities
 
-- **USB** — `usb` module enumerates and connects to devices
+- **USB** — enumerates and connects to devices via `usb`
 - **System Tray** — background process with context menu (Show/Hide/Quit)
 - **Preferences** — persisted via `electron-store` (JSON)
 - **File Pickers** — native OS dialogs via Electron's `dialog` API