Configure Maven repository for unionflow-server-api dependency

src/main/java/dev/lions/unionflow/server/entity/TemplateNotification.java

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+package dev.lions.unionflow.server.entity;
+
+import jakarta.persistence.*;
+import jakarta.validation.constraints.NotBlank;
+import java.util.ArrayList;
+import java.util.List;
+import lombok.AllArgsConstructor;
+import lombok.Builder;
+import lombok.Data;
+import lombok.EqualsAndHashCode;
+import lombok.NoArgsConstructor;
+
+/**
+ * Entité TemplateNotification pour les templates de notifications réutilisables
+ *
+ * @author UnionFlow Team
+ * @version 3.0
+ * @since 2025-01-29
+ */
+@Entity
+@Table(
+    name = "templates_notifications",
+    indexes = {
+      @Index(name = "idx_template_code", columnList = "code", unique = true),
+      @Index(name = "idx_template_actif", columnList = "actif")
+    })
+@Data
+@NoArgsConstructor
+@AllArgsConstructor
+@Builder
+@EqualsAndHashCode(callSuper = true)
+public class TemplateNotification extends BaseEntity {
+
+  /** Code unique du template */
+  @NotBlank
+  @Column(name = "code", unique = true, nullable = false, length = 100)
+  private String code;
+
+  /** Sujet du template */
+  @Column(name = "sujet", length = 500)
+  private String sujet;
+
+  /** Corps du template (texte) */
+  @Column(name = "corps_texte", columnDefinition = "TEXT")
+  private String corpsTexte;
+
+  /** Corps du template (HTML) */
+  @Column(name = "corps_html", columnDefinition = "TEXT")
+  private String corpsHtml;
+
+  /** Variables disponibles (JSON) */
+  @Column(name = "variables_disponibles", columnDefinition = "TEXT")
+  private String variablesDisponibles;
+
+  /** Canaux supportés (JSON array) */
+  @Column(name = "canaux_supportes", length = 500)
+  private String canauxSupportes;
+
+  /** Langue du template */
+  @Column(name = "langue", length = 10)
+  private String langue;
+
+  /** Description */
+  @Column(name = "description", length = 1000)
+  private String description;
+
+  /** Notifications utilisant ce template */
+  @OneToMany(mappedBy = "template", cascade = CascadeType.ALL, fetch = FetchType.LAZY)
+  @Builder.Default
+  private List<Notification> notifications = new ArrayList<>();
+
+  /** Callback JPA avant la persistance */
+  @PrePersist
+  protected void onCreate() {
+    super.onCreate();
+    if (langue == null || langue.isEmpty()) {
+      langue = "fr";
+    }
+  }
+}
+