feat(models): rename ModelPublicUser to ModelPublicUsers and update references

* Update user-related models to use plural naming for consistency
* Add relationships to ModelPublicUsers in related models
* Adjust database migration and schema to reflect changes
* Remove deprecated ModelPublicUser

pkg/models/sql_public_session.go

@@ -17,6 +17,7 @@ type ModelPublicSession struct {
 	UpdatedAt     resolvespec_common.SqlTimeStamp `bun:"updated_at,type:timestamp,default:now(),notnull," json:"updated_at"`
 	UserAgent     resolvespec_common.SqlString    `bun:"user_agent,type:text,nullzero," json:"user_agent"`
 	UserID        resolvespec_common.SqlString    `bun:"user_id,type:varchar(36),notnull," json:"user_id"`
+	RelUserID     *ModelPublicUsers               `bun:"rel:has-one,join:user_id=id" json:"reluserid,omitempty"` // Has one ModelPublicUsers
 }
 
 // TableName returns the table name for ModelPublicSession