feat(health): 添加文章修订历史查询 API — GET /health/articles/{id}/revisions

补全 ArticleRevision 实体的读取查询（之前仅有写入 save_revision），
新增 list_revisions service + handler + 路由，支持分页。

crates/erp-health/src/dto/article_dto.rs

@@ -144,6 +144,21 @@ impl ReviewArticleReq {
     }
 }
 
+// ---------------------------------------------------------------------------
+// 修订历史 DTOs
+// ---------------------------------------------------------------------------
+
+#[derive(Debug, Clone, Serialize, Deserialize, ToSchema)]
+pub struct ArticleRevisionResp {
+    pub id: Uuid,
+    pub article_id: Uuid,
+    pub revision_number: i32,
+    pub title: String,
+    pub summary: Option<String>,
+    pub created_by: Option<Uuid>,
+    pub created_at: chrono::DateTime<chrono::Utc>,
+}
+
 // ---------------------------------------------------------------------------
 // 分类 DTOs
 // ---------------------------------------------------------------------------

crates/erp-health/src/handler/article_handler.rs

@@ -203,3 +203,29 @@ where
     article_service::increment_view_count(&state, ctx.tenant_id, id).await?;
     Ok(Json(ApiResponse::ok(())))
 }
+
+#[derive(Debug, serde::Deserialize)]
+pub struct ListRevisionsQuery {
+    pub page: Option<u64>,
+    pub page_size: Option<u64>,
+}
+
+/// 查询文章修订历史
+pub async fn list_revisions<S>(
+    State(state): State<HealthState>,
+    Extension(ctx): Extension<TenantContext>,
+    Path(id): Path<uuid::Uuid>,
+    Query(params): Query<ListRevisionsQuery>,
+) -> Result<Json<ApiResponse<PaginatedResponse<crate::dto::article_dto::ArticleRevisionResp>>>, AppError>
+where
+    HealthState: FromRef<S>,
+    S: Clone + Send + Sync + 'static,
+{
+    require_permission(&ctx, "health.articles.list")?;
+    let page = params.page.unwrap_or(1);
+    let page_size = params.page_size.unwrap_or(20);
+    let result = article_service::list_revisions(
+        &state, ctx.tenant_id, id, page, page_size,
+    ).await?;
+    Ok(Json(ApiResponse::ok(result)))
+}

crates/erp-health/src/module.rs

@@ -433,6 +433,10 @@ impl HealthModule {
                 "/health/articles/{id}/view",
                 axum::routing::post(article_handler::view_article),
             )
+            .route(
+                "/health/articles/{id}/revisions",
+                axum::routing::get(article_handler::list_revisions),
+            )
             // 资讯分类
             .route(
                 "/health/article-categories",

crates/erp-health/src/service/article_service.rs

@@ -588,3 +588,54 @@ async fn save_revision(
     active.insert(&state.db).await?;
     Ok(())
 }
+
+pub async fn list_revisions(
+    state: &HealthState,
+    tenant_id: Uuid,
+    article_id: Uuid,
+    page: u64,
+    page_size: u64,
+) -> HealthResult<PaginatedResponse<crate::dto::article_dto::ArticleRevisionResp>> {
+    use crate::entity::article_revision;
+
+    let page = page.max(1);
+    let page_size = page_size.clamp(1, 100);
+
+    let condition = article_revision::Column::ArticleId
+        .eq(article_id)
+        .and(article_revision::Column::TenantId.eq(tenant_id));
+
+    let total = article_revision::Entity::find()
+        .filter(condition.clone())
+        .count(&state.db)
+        .await?;
+
+    let items = article_revision::Entity::find()
+        .filter(condition)
+        .order_by_desc(article_revision::Column::RevisionNumber)
+        .offset(((page - 1) * page_size) as u64)
+        .limit(page_size)
+        .all(&state.db)
+        .await?;
+
+    let data = items
+        .into_iter()
+        .map(|m| crate::dto::article_dto::ArticleRevisionResp {
+            id: m.id,
+            article_id: m.article_id,
+            revision_number: m.revision_number,
+            title: m.title,
+            summary: m.summary,
+            created_by: m.created_by,
+            created_at: m.created_at,
+        })
+        .collect();
+
+    Ok(PaginatedResponse {
+        data,
+        total,
+        page,
+        page_size,
+        total_pages: ((total as f64) / (page_size as f64)).ceil() as u64,
+    })
+}