fix: 用户信息更新返回类型与关注建表缺陷

updateMeLogic 更新后重新查询并返回 User 类型，修复 converter 转换
空响应的错误。proto_string 不再丢弃含空格的字符串。userfollows
ent schema 补上 created_at 的 Default(time.Now)。

app/users/rpc/internal/models/runtime.go

@@ -4,6 +4,7 @@ package models
 
 import (
 	"juwan-backend/app/users/rpc/internal/models/schema"
+	"juwan-backend/app/users/rpc/internal/models/userfollows"
 	"juwan-backend/app/users/rpc/internal/models/userpreferences"
 	"juwan-backend/app/users/rpc/internal/models/users"
 	"time"
@@ -13,6 +14,10 @@ import (
 // (default values, validators, hooks and policies) and stitches it
 // to their package variables.
 func init() {
+	userfollowsFields := schema.UserFollows{}.Fields()
+	_ = userfollowsFields
+	userfollowsDescCreatedAt := userfollowsFields[3].Descriptor()
+	userfollows.DefaultCreatedAt = userfollowsDescCreatedAt.Default.(func() time.Time)
 	userpreferencesFields := schema.UserPreferences{}.Fields()
 	_ = userpreferencesFields
 	// userpreferencesDescNotificationOrder is the schema descriptor for notification_order field.

app/users/rpc/internal/models/schema/userfollows.go

@@ -3,6 +3,7 @@ package schema
 import (
 	"entgo.io/ent"
 	"entgo.io/ent/schema/field"
+	"time"
 )
 
 // UserFollows holds the schema definition for the UserFollows entity.
@@ -16,7 +17,7 @@ func (UserFollows) Fields() []ent.Field {
 		field.Int64("id").Immutable().Unique(),
 		field.Int64("follower_id"),
 		field.Int64("followee_id"),
-		field.Time("created_at").Immutable(),
+		field.Time("created_at").Immutable().Default(time.Now),
 	}
 }
 

app/users/rpc/internal/models/userfollows/userfollows.go

@@ -3,6 +3,8 @@
 package userfollows
 
 import (
+	"time"
+
 	"entgo.io/ent/dialect/sql"
 )
 
@@ -39,6 +41,10 @@ func ValidColumn(column string) bool {
 	return false
 }
 
+var (
+	DefaultCreatedAt func() time.Time
+)
+
 // OrderOption defines the ordering options for the UserFollows queries.
 type OrderOption func(*sql.Selector)
 

app/users/rpc/internal/models/userfollows_create.go

@@ -51,6 +51,7 @@ func (_c *UserFollowsCreate) Mutation() *UserFollowsMutation {
 
 // Save creates the UserFollows in the database.
 func (_c *UserFollowsCreate) Save(ctx context.Context) (*UserFollows, error) {
+	_c.defaults()
 	return withHooks(ctx, _c.sqlSave, _c.mutation, _c.hooks)
 }
 
@@ -76,6 +77,13 @@ func (_c *UserFollowsCreate) ExecX(ctx context.Context) {
 	}
 }
 
+func (_c *UserFollowsCreate) defaults() {
+	if _, ok := _c.mutation.CreatedAt(); !ok {
+		v := userfollows.DefaultCreatedAt()
+		_c.mutation.SetCreatedAt(v)
+	}
+}
+
 // check runs all checks and user-defined validators on the builder.
 func (_c *UserFollowsCreate) check() error {
 	if _, ok := _c.mutation.FollowerID(); !ok {
@@ -152,6 +160,7 @@ func (_c *UserFollowsCreateBulk) Save(ctx context.Context) ([]*UserFollows, erro
 	for i := range _c.builders {
 		func(i int, root context.Context) {
 			builder := _c.builders[i]
+			builder.defaults()
 			var mut Mutator = MutateFunc(func(ctx context.Context, m Mutation) (Value, error) {
 				mutation, ok := m.(*UserFollowsMutation)
 				if !ok {