1. 增加了几种模板

server/repositories/migration.go

@@ -6,6 +6,7 @@ import (
 	"time"
 
 	"github.com/niangaodev/art-code/config"
+	"github.com/niangaodev/art-code/models"
 )
 
 // MigrateToBigInt performs schema migration to BigInt timestamps
@@ -332,6 +333,77 @@ func MigratePptTemplates() {
 	EnsureSystemPptTemplate()
 }
 
+// MigrateTemplates 创建 templates 表并种入内置模板（classic / ubuntu-terminal）
+func MigrateTemplates() {
+	log.Printf("Migrating templates...")
+
+	if !tableExists("templates") {
+		execSQL(`CREATE TABLE templates (
+			id INT UNSIGNED NOT NULL AUTO_INCREMENT COMMENT '模板ID',
+			slug VARCHAR(100) CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci NOT NULL COMMENT '唯一标识（classic/ubuntu-terminal/自定义slug）',
+			name VARCHAR(100) CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci NOT NULL COMMENT '模板显示名称',
+			type VARCHAR(20) CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci NOT NULL DEFAULT 'custom' COMMENT '类型（builtin内置/custom自定义）',
+			description TEXT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci NULL COMMENT '模板描述',
+			manifest LONGTEXT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci NULL COMMENT 'manifest.json 内容（custom）',
+			layout_json LONGTEXT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci NULL COMMENT 'layout.json 内容（custom）',
+			skin_css_path VARCHAR(500) CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci NULL DEFAULT NULL COMMENT '皮肤CSS相对路径（/uploads/templates/{slug}/skin.css）',
+			is_system TINYINT(1) NOT NULL DEFAULT 0 COMMENT '是否系统内置模板（0否 1是，不可删除）',
+			is_active TINYINT(1) NOT NULL DEFAULT 1 COMMENT '是否启用（0否 1是）',
+			sort_order INT NOT NULL DEFAULT 0 COMMENT '排序（越小越靠前）',
+			deleted_at BIGINT NOT NULL DEFAULT 0 COMMENT '软删除时间戳',
+			created_at BIGINT NOT NULL DEFAULT 0 COMMENT '创建时间（Unix秒）',
+			updated_at BIGINT NOT NULL DEFAULT 0 COMMENT '更新时间（Unix秒）',
+			PRIMARY KEY (id),
+			UNIQUE INDEX idx_slug (slug)
+		) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci COMMENT='前端页面模板表'`)
+	}
+
+	ensureBuiltinTemplate(BuiltinTemplateClassic, "经典", "系统内置经典布局", 0)
+	ensureBuiltinTemplate(BuiltinTemplateTerminal, "Ubuntu 终端", "系统内置终端风格（ls/search/cat 命令交互）", 1)
+	ensureBuiltinTemplate(BuiltinTemplatePixel, "像素", "系统内置像素风（8-bit 游戏机界面）", 2)
+	ensureBuiltinTemplate(BuiltinTemplateMagazine, "杂志", "系统内置杂志风（衬线多栏编辑排版）", 3)
+	ensureBuiltinTemplate(BuiltinTemplateNewspaper, "报纸", "系统内置报纸风（报头多栏纸感排版）", 4)
+	ensureBuiltinTemplate(BuiltinTemplateBento, "Bento 宫格", "系统内置 Bento 宫格风（圆角几何色块）", 5)
+	ensureBuiltinTemplate(BuiltinTemplateGlass, "玻璃拟态", "系统内置玻璃拟态（毛玻璃光感）", 6)
+	ensureBuiltinTemplate(BuiltinTemplateRetro, "复古印刷", "系统内置复古印刷（旧印刷烫金质感）", 7)
+	ensureBuiltinTemplate(BuiltinTemplateGuofeng, "国风水墨", "系统内置国风水墨（宣纸印章山水）", 8)
+
+	// 种入 site_template 默认配置
+	if s, err := GetSettingByKey(SettingKeySiteTemplate); err == nil && s == nil {
+		_ = CreateSetting(&models.Setting{
+			KeyName:     SettingKeySiteTemplate,
+			Value:       DefaultSiteTemplateSlug,
+			Description: "当前启用的前端页面模板 slug",
+		})
+	}
+}
+
+// ensureBuiltinTemplate 幂等种入内置模板
+func ensureBuiltinTemplate(slug, name, desc string, sortOrder int) {
+	var count int64
+	config.DB.Model(&models.Template{}).
+		Where("slug = ? AND deleted_at = ?", slug, 0).
+		Count(&count)
+	if count > 0 {
+		return
+	}
+	now := time.Now().Unix()
+	t := models.Template{
+		Slug:        slug,
+		Name:        name,
+		Type:        TemplateTypeBuiltin,
+		Description: desc,
+		IsSystem:    true,
+		IsActive:    true,
+		SortOrder:   sortOrder,
+		CreatedAt:   now,
+		UpdatedAt:   now,
+	}
+	if err := config.DB.Create(&t).Error; err != nil {
+		log.Printf("Failed to seed builtin template %s: %v", slug, err)
+	}
+}
+
 // MigrateOSSConfigFields 为 oss_configs 补齐各云厂商专用列（幂等）
 func MigrateOSSConfigFields() {
 	log.Printf("Migrating oss_configs provider fields...")