refactor: shorten model and table prefixes

backend/internal/models/inbox_suggestion.go

@@ -2,8 +2,8 @@ package models
 
 import "time"
 
-// SenlinAgentInboxSuggestion 保存分析阶段的候选草稿；它不是任务、笔记或资料，只有用户确认后才会创建正式对象。
-type SenlinAgentInboxSuggestion struct {
+// SaInboxSuggestion 保存分析阶段的候选草稿；它不是任务、笔记或资料，只有用户确认后才会创建正式对象。
+type SaInboxSuggestion struct {
 	ID                uint   `gorm:"primaryKey"`
 	Identity          string `gorm:"type:char(36);uniqueIndex"`
 	InboxItemID       uint   `gorm:"index;not null"`
@@ -16,6 +16,6 @@ type SenlinAgentInboxSuggestion struct {
 	CreatedAt         time.Time
 }
 
-func (SenlinAgentInboxSuggestion) TableName() string {
-	return "senlin_agent_inbox_suggestions"
+func (SaInboxSuggestion) TableName() string {
+	return "sa_inbox_suggestions"
 }