feat: add energy monitoring entities (EnergyMeter, EnergyConsumption)

module-mdm/src/main/java/com/ether/pms/mdm/entity/EnergyConsumption.java

@@ -0,0 +1,62 @@
+package com.ether.pms.mdm.entity;
+
+import jakarta.persistence.*;
+import lombok.Data;
+import java.math.BigDecimal;
+import java.time.LocalDate;
+import java.time.LocalDateTime;
+import java.util.UUID;
+
+@Entity
+@Table(name = "ops_energy_consumption")
+@Data
+public class EnergyConsumption {
+
+    @Id
+    @GeneratedValue(strategy = GenerationType.UUID)
+    private UUID id;
+
+    @Column(name = "project_id", nullable = false)
+    private UUID projectId;
+
+    @Column(name = "meter_id", nullable = false)
+    private UUID meterId;
+
+    @Column(name = "consumption_date", nullable = false)
+    private LocalDate consumptionDate;
+
+    @Column(name = "previous_reading", precision = 12, scale = 2)
+    private BigDecimal previousReading;
+
+    @Column(name = "current_reading", precision = 12, scale = 2)
+    private BigDecimal currentReading;
+
+    @Column(nullable = false, precision = 12, scale = 2)
+    private BigDecimal consumption;
+
+    @Column(precision = 10, scale = 2)
+    private BigDecimal amount;
+
+    @Column(name = "recorded_by")
+    private UUID recordedBy;
+
+    @Column(name = "record_method")
+    @Enumerated(EnumType.STRING)
+    private RecordMethod recordMethod = RecordMethod.MANUAL;
+
+    public enum RecordMethod {
+        MANUAL,  // 手动录入
+        IOT      // IoT自动采集
+    }
+
+    @Column(columnDefinition = "TEXT")
+    private String remarks;
+
+    @Column(name = "created_at")
+    private LocalDateTime createdAt;
+
+    @PrePersist
+    public void prePersist() {
+        createdAt = LocalDateTime.now();
+    }
+}

module-mdm/src/main/java/com/ether/pms/mdm/entity/EnergyMeter.java

@@ -0,0 +1,80 @@
+package com.ether.pms.mdm.entity;
+
+import jakarta.persistence.*;
+import lombok.Data;
+import java.math.BigDecimal;
+import java.time.LocalDateTime;
+import java.util.UUID;
+
+@Entity
+@Table(name = "ops_energy_meter")
+@Data
+public class EnergyMeter {
+
+    @Id
+    @GeneratedValue(strategy = GenerationType.UUID)
+    private UUID id;
+
+    @Column(name = "project_id", nullable = false)
+    private UUID projectId;
+
+    @Column(name = "meter_code", nullable = false, unique = true)
+    private String meterCode;
+
+    @Column(name = "meter_name", nullable = false)
+    private String meterName;
+
+    @Column(name = "energy_type", nullable = false)
+    @Enumerated(EnumType.STRING)
+    private EnergyType energyType;
+
+    public enum EnergyType {
+        LIGHTING("照明插座用电"),
+        HVAC("空调用电"),
+        POWER("动力用电"),
+        SPECIAL("特殊用电"),
+        WATER("给排水"),
+        GAS("燃气");
+
+        private final String desc;
+        EnergyType(String desc) { this.desc = desc; }
+        public String getDesc() { return desc; }
+    }
+
+    @Column(name = "space_node_id")
+    private UUID spaceNodeId;
+
+    @Column(name = "installation_location")
+    private String installationLocation;
+
+    @Column(name = "rated_capacity", precision = 10, scale = 2)
+    private BigDecimal ratedCapacity;
+
+    @Column(name = "unit_price", precision = 10, scale = 4)
+    private BigDecimal unitPrice;
+
+    @Column(nullable = false)
+    @Enumerated(EnumType.STRING)
+    private Status status = Status.ACTIVE;
+
+    public enum Status {
+        ACTIVE, INACTIVE
+    }
+
+    @Column(name = "created_at")
+    private LocalDateTime createdAt;
+
+    @Column(name = "updated_at")
+    private LocalDateTime updatedAt;
+
+    @PrePersist
+    public void prePersist() {
+        createdAt = LocalDateTime.now();
+        updatedAt = LocalDateTime.now();
+    }
+
+    @PreUpdate
+    public void preUpdate() {
+        updatedAt = LocalDateTime.now();
+    }
+}