feat: 新增 Agent、Memory、Skill 模块

- handler: agent_handler, memory_handler, skill_handler
- model: agent.go, skill.go
- repository: agent_repo, skill_repo
- service: agent_service, memory_service, skill_service
- 新增 migrations 目录

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

server/internal/repository/agent_repo.go

@@ -46,3 +46,108 @@ func (r *AgentRepository) Update(agent *model.Agent) error {
 func (r *AgentRepository) Delete(id string) error {
 	return r.db.Delete(&model.Agent{}, "id = ?", id).Error
 }
+
+// AgentSkill 相关方法
+
+func (r *AgentRepository) CreateAgentSkill(as *model.AgentSkill) error {
+	return r.db.Create(as).Error
+}
+
+func (r *AgentRepository) FindSkillsByAgentID(agentID string) ([]model.AgentSkill, error) {
+	var agentSkills []model.AgentSkill
+	err := r.db.Where("agent_id = ?", agentID).Find(&agentSkills).Error
+	return agentSkills, err
+}
+
+func (r *AgentRepository) DeleteAgentSkills(agentID string) error {
+	return r.db.Delete(&model.AgentSkill{}, "agent_id = ?", agentID).Error
+}
+
+// AgentKnowledgeBase 相关方法
+
+func (r *AgentRepository) CreateAgentKnowledgeBase(akb *model.AgentKnowledgeBase) error {
+	return r.db.Create(akb).Error
+}
+
+func (r *AgentRepository) FindKnowledgeBasesByAgentID(agentID string) ([]model.AgentKnowledgeBase, error) {
+	var agentKBs []model.AgentKnowledgeBase
+	err := r.db.Where("agent_id = ?", agentID).Find(&agentKBs).Error
+	return agentKBs, err
+}
+
+func (r *AgentRepository) DeleteAgentKnowledgeBases(agentID string) error {
+	return r.db.Delete(&model.AgentKnowledgeBase{}, "agent_id = ?", agentID).Error
+}
+
+// AgentMemory 相关方法
+
+func (r *AgentRepository) CreateMemory(memory *model.AgentMemory) error {
+	return r.db.Create(memory).Error
+}
+
+func (r *AgentRepository) FindMemoriesByAgentID(agentID string, limit int) ([]model.AgentMemory, error) {
+	var memories []model.AgentMemory
+	err := r.db.Where("agent_id = ?", agentID).Order("importance DESC, created_at DESC").Limit(limit).Find(&memories).Error
+	return memories, err
+}
+
+func (r *AgentRepository) FindMemoriesByUserID(agentID, userID string, limit int) ([]model.AgentMemory, error) {
+	var memories []model.AgentMemory
+	err := r.db.Where("agent_id = ? AND user_id = ?", agentID, userID).Order("importance DESC, created_at DESC").Limit(limit).Find(&memories).Error
+	return memories, err
+}
+
+func (r *AgentRepository) DeleteMemory(id string) error {
+	return r.db.Delete(&model.AgentMemory{}, "id = ?", id).Error
+}
+
+// AgentTeam 相关方法
+
+func (r *AgentRepository) CreateAgentTeam(team *model.AgentTeam) error {
+	return r.db.Create(team).Error
+}
+
+func (r *AgentRepository) FindTeamMembers(supervisorAgentID string) ([]model.AgentTeam, error) {
+	var teams []model.AgentTeam
+	err := r.db.Where("supervisor_agent_id = ?", supervisorAgentID).Find(&teams).Error
+	return teams, err
+}
+
+func (r *AgentRepository) FindByMemberAgentID(memberAgentID string) ([]model.AgentTeam, error) {
+	var teams []model.AgentTeam
+	err := r.db.Where("member_agent_id = ?", memberAgentID).Find(&teams).Error
+	return teams, err
+}
+
+func (r *AgentRepository) DeleteAgentTeam(id string) error {
+	return r.db.Delete(&model.AgentTeam{}, "id = ?", id).Error
+}
+
+func (r *AgentRepository) DeleteTeamMembers(supervisorAgentID string) error {
+	return r.db.Delete(&model.AgentTeam{}, "supervisor_agent_id = ?", supervisorAgentID).Error
+}
+
+// AgentTask 相关方法
+
+func (r *AgentRepository) CreateTask(task *model.AgentTask) error {
+	return r.db.Create(task).Error
+}
+
+func (r *AgentRepository) UpdateTask(task *model.AgentTask) error {
+	return r.db.Save(task).Error
+}
+
+func (r *AgentRepository) FindTasksByAgentID(agentID string, limit int) ([]model.AgentTask, error) {
+	var tasks []model.AgentTask
+	err := r.db.Where("agent_id = ?", agentID).Order("created_at DESC").Limit(limit).Find(&tasks).Error
+	return tasks, err
+}
+
+func (r *AgentRepository) FindTaskByID(id string) (*model.AgentTask, error) {
+	var task model.AgentTask
+	err := r.db.First(&task, "id = ?", id).Error
+	if err != nil {
+		return nil, err
+	}
+	return &task, nil
+}