Initial release v1.0.0 - BLE Device Simulator with MCP Integration

Features:
- MCP server with tools for AI-controlled device simulation
- FastAPI backend with REST API and WebSocket support
- Real-time device updates via WebSocket
- Web UI for manual device control
- ESP32 firmware for BLE device simulation
- Docker containerization with MQTT broker

Supported device types:
- Heart Rate Monitor (BLE Heart Rate Service)
- Treadmill (BLE Fitness Machine Service)
- Bike Trainer (BLE Cycling Power Service)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

firmware/esp32_ble_sim/include/config_manager.h

@@ -0,0 +1,64 @@
+#ifndef CONFIG_MANAGER_H
+#define CONFIG_MANAGER_H
+
+#include <Arduino.h>
+#include <Preferences.h>
+
+// ============================================
+// Configuration Structure
+// ============================================
+struct DeviceConfig {
+    bool configured = false;
+    String wifiSsid = "";
+    String wifiPassword = "";
+    String mqttHost = "";
+    uint16_t mqttPort = 1883;
+    String deviceId = "";
+};
+
+// ============================================
+// Configuration Manager Class
+// ============================================
+class ConfigManager {
+public:
+    ConfigManager();
+
+    // Load config from NVS
+    bool load();
+
+    // Save config to NVS
+    void save();
+
+    // Clear all config
+    void clear();
+
+    // Check if configured
+    bool isConfigured() const { return config.configured; }
+
+    // Getters
+    const String& getWifiSsid() const { return config.wifiSsid; }
+    const String& getWifiPassword() const { return config.wifiPassword; }
+    const String& getMqttHost() const { return config.mqttHost; }
+    uint16_t getMqttPort() const { return config.mqttPort; }
+    const String& getDeviceId() const { return config.deviceId; }
+
+    // Setters
+    void setWifiCredentials(const String& ssid, const String& password);
+    void setMqttConfig(const String& host, uint16_t port);
+    void setDeviceId(const String& id);
+
+    // Get unique AP name based on chip ID
+    String getAPName() const;
+
+    // Get unique default device ID based on chip ID
+    String getDefaultDeviceId() const;
+
+private:
+    DeviceConfig config;
+    Preferences preferences;
+};
+
+// Global instance
+extern ConfigManager configManager;
+
+#endif // CONFIG_MANAGER_H