Initial commit: add stepper controller firmware

include/config/ConfigManager.h

@@ -0,0 +1,50 @@
+#pragma once
+
+#include <Arduino.h>
+
+struct DeviceConfig {
+  String name;
+  String hostname;
+};
+
+struct MotorConfig {
+  long stepsPerRevolution;
+  float maxSpeed;
+  float acceleration;
+  bool reverseDirection;
+  bool holdPosition;
+};
+
+struct WifiConfig {
+  String ssid;
+  String password;
+  String apName;
+  String apPassword;
+};
+
+struct LimitConfig {
+  bool enabled;
+  int leftPin;
+  int rightPin;
+  bool activeHigh;
+};
+
+struct AppConfig {
+  DeviceConfig device;
+  MotorConfig motor;
+  WifiConfig wifi;
+  LimitConfig limits;
+};
+
+class ConfigManager {
+ public:
+  bool begin();
+  bool load();
+  bool save();
+  void resetToDefaults();
+  const AppConfig& get() const;
+  AppConfig& mutableConfig();
+
+ private:
+  AppConfig config_;
+};