feat: rename Content field to Instruction across skill-related models and requests for consistency

internal/ai/runtime/internal/impl/factory/agent_factory.go

@@ -241,7 +241,7 @@ func buildSelectedSkillInstruction(skill *models.SkillDefinition, toolDefinition
 	if desc := strings.TrimSpace(skill.Description); desc != "" {
 		lines = append(lines, fmt.Sprintf("- description: %s", desc))
 	}
-	if content := strings.TrimSpace(skill.Content); content != "" {
+	if content := strings.TrimSpace(skill.Instruction); content != "" {
 		lines = append(lines, "", "技能说明：", content)
 	}
 	if examples := parseJSONStringArray(skill.Examples); len(examples) > 0 {

internal/builders/skill_builder.go

@@ -22,7 +22,7 @@ func BuildSkillDefinitionResponse(item *models.SkillDefinition) response.SkillDe
 		Code:             item.Code,
 		Name:             item.Name,
 		Description:      item.Description,
-		Content:          item.Content,
+		Instruction:      item.Instruction,
 		Examples:         examples,
 		AllowedToolCodes: allowedToolCodes,
 		Priority:         item.Priority,

internal/models/models.go

@@ -908,7 +908,7 @@ type SkillDefinition struct {
 	Code             string       `gorm:"type:varchar(100);not null;default:'';uniqueIndex"` // Code 为 Skill 的稳定唯一编码，供程序内部引用和路由判断使用，例如 refund_skill。
 	Name             string       `gorm:"type:varchar(100);not null;default:'';index"`       // Name 为 Skill 的展示名称，用于后台列表、配置页和人工选择场景。
 	Description      string       `gorm:"type:varchar(255);not null;default:''"`             // Description 为 Skill 的简要说明，用于描述该 Skill 的适用场景和职责边界。
-	Content          string       `gorm:"type:longtext"`                                     // Content 为 Skill 的主体文档，使用 Markdown 编写，供 Agent 理解任务目标、步骤和工具使用要求。
+	Instruction      string       `gorm:"type:longtext"`                                     // Instruction 为 Skill 的主体说明文档存储字段，使用 Markdown 编写，供 Agent 理解任务目标、步骤和工具使用要求。
 	Examples         string       `gorm:"type:text"`                                         // Examples 为示例问法 JSON 数组字符串。
 	AllowedToolCodes string       `gorm:"type:text"`                                         // AllowedToolCodes 为允许使用的工具编码 JSON 数组字符串。
 	Priority         int          `gorm:"type:int;not null;default:0;index"`                 // Priority 为 Skill 命中冲突时的优先级，数值越大优先级越高。

internal/pkg/dto/request/skill_request.go

@@ -10,7 +10,7 @@ type CreateSkillDefinitionRequest struct {
 	Code             string   `json:"code"`
 	Name             string   `json:"name"`
 	Description      string   `json:"description"`
-	Content          string   `json:"content"`
+	Instruction      string   `json:"instruction"`
 	Examples         []string `json:"examples"`
 	AllowedToolCodes []string `json:"allowedToolCodes"`
 	Priority         int      `json:"priority"`

internal/pkg/dto/response/skill_response.go

@@ -7,7 +7,7 @@ type SkillDefinitionResponse struct {
 	Code             string    `json:"code"`
 	Name             string    `json:"name"`
 	Description      string    `json:"description"`
-	Content          string    `json:"content"`
+	Instruction      string    `json:"instruction"`
 	Examples         []string  `json:"examples"`
 	AllowedToolCodes []string  `json:"allowedToolCodes"`
 	Priority         int       `json:"priority"`

internal/services/skill_definition_service.go

@@ -112,7 +112,7 @@ func (s *skillDefinitionService) CreateSkillDefinition(req request.CreateSkillDe
 		Code:             normalized.Code,
 		Name:             normalized.Name,
 		Description:      normalized.Description,
-		Content:          normalized.Content,
+		Instruction:      normalized.Instruction,
 		Examples:         mustMarshalSkillStringArray(normalized.Examples),
 		AllowedToolCodes: mustMarshalSkillStringArray(normalized.AllowedToolCodes),
 		Priority:         normalized.Priority,
@@ -151,7 +151,7 @@ func (s *skillDefinitionService) UpdateSkillDefinition(req request.UpdateSkillDe
 		"code":               normalized.Code,
 		"name":               normalized.Name,
 		"description":        normalized.Description,
-		"content":            normalized.Content,
+		"content":            normalized.Instruction,
 		"examples":           mustMarshalSkillStringArray(normalized.Examples),
 		"allowed_tool_codes": mustMarshalSkillStringArray(normalized.AllowedToolCodes),
 		"priority":           resolveSkillPriorityForService(normalized.Priority, current.Priority),
@@ -167,7 +167,7 @@ func (s *skillDefinitionService) normalizeSkillDefinitionRequest(req request.Cre
 		Code:        strings.TrimSpace(req.Code),
 		Name:        strings.TrimSpace(req.Name),
 		Description: strings.TrimSpace(req.Description),
-		Content:     strings.TrimSpace(req.Content),
+		Instruction: strings.TrimSpace(req.Instruction),
 		Priority:    normalizeSkillPriorityForService(req.Priority),
 		Remark:      strings.TrimSpace(req.Remark),
 	}
@@ -177,8 +177,8 @@ func (s *skillDefinitionService) normalizeSkillDefinitionRequest(req request.Cre
 	if normalized.Name == "" {
 		return nil, errorsx.InvalidParam("Skill 名称不能为空")
 	}
-	if normalized.Content == "" {
-		return nil, errorsx.InvalidParam("Content 不能为空")
+	if normalized.Instruction == "" {
+		return nil, errorsx.InvalidParam("技能说明不能为空")
 	}
 	examples, err := normalizeSkillStringArray(req.Examples)
 	if err != nil {