Update dependencies to latest versions and fix security vulnerabilities

- Updated loglevel from 1.8.0 to 1.9.2
- Updated Jest from 29.2.2 to 30.1.3
- Updated jest-environment-jsdom from 29.2.2 to 30.1.2
- Updated browserify from 17.0.0 to 17.0.1
- Updated uglify-js from 3.17.4 to 3.19.3
- Resolved 12 security vulnerabilities via npm audit fix
- Rebuilt distribution files with updated dependencies
- Added CLAUDE.md for future development guidance
- Bumped version to 0.1.3

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <[email protected]>

Author: PBrunot

CLAUDE.md

@@ -0,0 +1,77 @@
+# CLAUDE.md
+
+This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.
+
+## Project Overview
+
+This is a JavaScript library for interfacing with the OWON B41T+ digital multimeter via Web Bluetooth. The project enables browser-based communication with the multimeter to read measurements in real-time.
+
+## Development Commands
+
+### Build Commands
+- `npm run dev` - Build unminified development version to `./dist/bt-owon-bt.js`
+- `npm run dist` - Build minified production version to `./dist/bt-owon-bt.min.js`
+
+### Testing
+- `npm test` - Run Jest tests
+
+### Package Management
+- `npm ci` - Install dependencies (preferred for CI/clean installs)
+
+## Core Architecture
+
+### Main Entry Point
+- `owon.js` - Main API module that exports Start(), Stop(), SetLogLevel() functions and exposes btState object
+
+### Core Modules
+- `webbluetooth.js` - Contains the main Bluetooth state machine and protocol implementation
+  - Implements Bluetooth Low Energy communication using Web Bluetooth API
+  - Handles device pairing, service discovery, and notification subscriptions
+  - Contains protocol parser for OWON B35/B41T+ data format
+  - State machine with states: NOT_CONNECTED, CONNECTING, DEVICE_PAIRED, SUBSCRIBING, IDLE, BUSY, ERROR, STOPPING, STOPPED, METER_INIT, METER_INITIALIZING
+
+- `utils.js` - Utility functions for async operations and data conversion
+  - sleep(), waitFor(), waitForTimeout() - async helpers
+  - buf2hex(), hex2buf() - ArrayBuffer conversion utilities
+
+### Protocol Implementation
+The project implements the OWON B35 protocol (compatible with B41T+):
+- Bluetooth service UUID: `0000fff0-0000-1000-8000-00805f9b34fb`
+- Notifications UUID: `0000fff4-0000-1000-8000-00805f9b34fb`
+- Each notification contains 3 int16 values: measurement type/decimals/units, measure type flags, and display digits with sign bit
+
+### Frontend Integration
+- `multimeter.html` - Demo web interface using Bootstrap and Chart.js
+- Built files in `dist/` are standalone and can be included via script tags
+- Library exports `OwonBT` global when used in browser
+
+### Build System
+- Uses Browserify to create standalone browser bundles
+- UglifyJS for minification with source maps
+- Jest for unit testing with jsdom environment
+
+## Key Implementation Details
+
+### State Management
+The core state is managed in `webbluetooth.js` through the `btState` object which contains:
+- Connection state and state machine status
+- Bluetooth device/service/characteristic references
+- Raw and parsed measurement data
+- Statistics and debugging information
+
+### Error Handling
+- Auto-reconnection logic on GATT disconnections
+- Timeout handling for various operations (30s default, 1s in simulation)
+- Error states trigger cleanup and potential reconnection attempts
+
+### Data Flow
+1. User calls `OwonBT.Start()` to initiate connection
+2. State machine handles Bluetooth pairing and service discovery
+3. Notifications from multimeter are parsed and stored in `btState.parsedResponse`
+4. Frontend can read live data from `btState` object
+5. `OwonBT.Stop()` cleanly disconnects and stops state machine
+
+## Testing Strategy
+- Unit tests focus on API existence and state object structure
+- Uses Jest with jsdom environment for browser API mocking
+- Tests are in `tests/OwonBT.test.js`