Add invalid-request fallback routing

2026-01-23 22:24:46 +08:00
parent 316f2fee21
commit fd0370c07a
28 changed files with 1532 additions and 341 deletions
--- a/backend/ent/group.go
+++ b/backend/ent/group.go
@@ -56,6 +56,8 @@ type Group struct {
 	ClaudeCodeOnly bool `json:"claude_code_only,omitempty"`
 	// 非 Claude Code 请求降级使用的分组 ID
 	FallbackGroupID *int64 `json:"fallback_group_id,omitempty"`
+	// 无效请求兜底使用的分组 ID
+	FallbackGroupIDOnInvalidRequest *int64 `json:"fallback_group_id_on_invalid_request,omitempty"`
 	// 模型路由配置：模型模式 -> 优先账号ID列表
 	ModelRouting map[string][]int64 `json:"model_routing,omitempty"`
 	// 是否启用模型路由配置
@@ -172,7 +174,7 @@ func (*Group) scanValues(columns []string) ([]any, error) {
 			values[i] = new(sql.NullBool)
 		case group.FieldRateMultiplier, group.FieldDailyLimitUsd, group.FieldWeeklyLimitUsd, group.FieldMonthlyLimitUsd, group.FieldImagePrice1k, group.FieldImagePrice2k, group.FieldImagePrice4k:
 			values[i] = new(sql.NullFloat64)
-		case group.FieldID, group.FieldDefaultValidityDays, group.FieldFallbackGroupID:
+		case group.FieldID, group.FieldDefaultValidityDays, group.FieldFallbackGroupID, group.FieldFallbackGroupIDOnInvalidRequest:
 			values[i] = new(sql.NullInt64)
 		case group.FieldName, group.FieldDescription, group.FieldStatus, group.FieldPlatform, group.FieldSubscriptionType:
 			values[i] = new(sql.NullString)
@@ -322,6 +324,13 @@ func (_m *Group) assignValues(columns []string, values []any) error {
 				_m.FallbackGroupID = new(int64)
 				*_m.FallbackGroupID = value.Int64
 			}
+		case group.FieldFallbackGroupIDOnInvalidRequest:
+			if value, ok := values[i].(*sql.NullInt64); !ok {
+				return fmt.Errorf("unexpected type %T for field fallback_group_id_on_invalid_request", values[i])
+			} else if value.Valid {
+				_m.FallbackGroupIDOnInvalidRequest = new(int64)
+				*_m.FallbackGroupIDOnInvalidRequest = value.Int64
+			}
 		case group.FieldModelRouting:
 			if value, ok := values[i].(*[]byte); !ok {
 				return fmt.Errorf("unexpected type %T for field model_routing", values[i])
@@ -487,6 +496,11 @@ func (_m *Group) String() string {
 		builder.WriteString(fmt.Sprintf("%v", *v))
 	}
 	builder.WriteString(", ")
+	if v := _m.FallbackGroupIDOnInvalidRequest; v != nil {
+		builder.WriteString("fallback_group_id_on_invalid_request=")
+		builder.WriteString(fmt.Sprintf("%v", *v))
+	}
+	builder.WriteString(", ")
 	builder.WriteString("model_routing=")
 	builder.WriteString(fmt.Sprintf("%v", _m.ModelRouting))
 	builder.WriteString(", ")
--- a/backend/ent/group/group.go
+++ b/backend/ent/group/group.go
@@ -53,6 +53,8 @@ const (
 	FieldClaudeCodeOnly = "claude_code_only"
 	// FieldFallbackGroupID holds the string denoting the fallback_group_id field in the database.
 	FieldFallbackGroupID = "fallback_group_id"
+	// FieldFallbackGroupIDOnInvalidRequest holds the string denoting the fallback_group_id_on_invalid_request field in the database.
+	FieldFallbackGroupIDOnInvalidRequest = "fallback_group_id_on_invalid_request"
 	// FieldModelRouting holds the string denoting the model_routing field in the database.
 	FieldModelRouting = "model_routing"
 	// FieldModelRoutingEnabled holds the string denoting the model_routing_enabled field in the database.
@@ -151,6 +153,7 @@ var Columns = []string{
 	FieldImagePrice4k,
 	FieldClaudeCodeOnly,
 	FieldFallbackGroupID,
+	FieldFallbackGroupIDOnInvalidRequest,
 	FieldModelRouting,
 	FieldModelRoutingEnabled,
 }
@@ -317,6 +320,11 @@ func ByFallbackGroupID(opts ...sql.OrderTermOption) OrderOption {
 	return sql.OrderByField(FieldFallbackGroupID, opts...).ToFunc()
 }

+// ByFallbackGroupIDOnInvalidRequest orders the results by the fallback_group_id_on_invalid_request field.
+func ByFallbackGroupIDOnInvalidRequest(opts ...sql.OrderTermOption) OrderOption {
+	return sql.OrderByField(FieldFallbackGroupIDOnInvalidRequest, opts...).ToFunc()
+}
+
 // ByModelRoutingEnabled orders the results by the model_routing_enabled field.
 func ByModelRoutingEnabled(opts ...sql.OrderTermOption) OrderOption {
 	return sql.OrderByField(FieldModelRoutingEnabled, opts...).ToFunc()
--- a/backend/ent/group/where.go
+++ b/backend/ent/group/where.go
@@ -150,6 +150,11 @@ func FallbackGroupID(v int64) predicate.Group {
 	return predicate.Group(sql.FieldEQ(FieldFallbackGroupID, v))
 }

+// FallbackGroupIDOnInvalidRequest applies equality check predicate on the "fallback_group_id_on_invalid_request" field. It's identical to FallbackGroupIDOnInvalidRequestEQ.
+func FallbackGroupIDOnInvalidRequest(v int64) predicate.Group {
+	return predicate.Group(sql.FieldEQ(FieldFallbackGroupIDOnInvalidRequest, v))
+}
+
 // ModelRoutingEnabled applies equality check predicate on the "model_routing_enabled" field. It's identical to ModelRoutingEnabledEQ.
 func ModelRoutingEnabled(v bool) predicate.Group {
 	return predicate.Group(sql.FieldEQ(FieldModelRoutingEnabled, v))
@@ -1070,6 +1075,56 @@ func FallbackGroupIDNotNil() predicate.Group {
 	return predicate.Group(sql.FieldNotNull(FieldFallbackGroupID))
 }

+// FallbackGroupIDOnInvalidRequestEQ applies the EQ predicate on the "fallback_group_id_on_invalid_request" field.
+func FallbackGroupIDOnInvalidRequestEQ(v int64) predicate.Group {
+	return predicate.Group(sql.FieldEQ(FieldFallbackGroupIDOnInvalidRequest, v))
+}
+
+// FallbackGroupIDOnInvalidRequestNEQ applies the NEQ predicate on the "fallback_group_id_on_invalid_request" field.
+func FallbackGroupIDOnInvalidRequestNEQ(v int64) predicate.Group {
+	return predicate.Group(sql.FieldNEQ(FieldFallbackGroupIDOnInvalidRequest, v))
+}
+
+// FallbackGroupIDOnInvalidRequestIn applies the In predicate on the "fallback_group_id_on_invalid_request" field.
+func FallbackGroupIDOnInvalidRequestIn(vs ...int64) predicate.Group {
+	return predicate.Group(sql.FieldIn(FieldFallbackGroupIDOnInvalidRequest, vs...))
+}
+
+// FallbackGroupIDOnInvalidRequestNotIn applies the NotIn predicate on the "fallback_group_id_on_invalid_request" field.
+func FallbackGroupIDOnInvalidRequestNotIn(vs ...int64) predicate.Group {
+	return predicate.Group(sql.FieldNotIn(FieldFallbackGroupIDOnInvalidRequest, vs...))
+}
+
+// FallbackGroupIDOnInvalidRequestGT applies the GT predicate on the "fallback_group_id_on_invalid_request" field.
+func FallbackGroupIDOnInvalidRequestGT(v int64) predicate.Group {
+	return predicate.Group(sql.FieldGT(FieldFallbackGroupIDOnInvalidRequest, v))
+}
+
+// FallbackGroupIDOnInvalidRequestGTE applies the GTE predicate on the "fallback_group_id_on_invalid_request" field.
+func FallbackGroupIDOnInvalidRequestGTE(v int64) predicate.Group {
+	return predicate.Group(sql.FieldGTE(FieldFallbackGroupIDOnInvalidRequest, v))
+}
+
+// FallbackGroupIDOnInvalidRequestLT applies the LT predicate on the "fallback_group_id_on_invalid_request" field.
+func FallbackGroupIDOnInvalidRequestLT(v int64) predicate.Group {
+	return predicate.Group(sql.FieldLT(FieldFallbackGroupIDOnInvalidRequest, v))
+}
+
+// FallbackGroupIDOnInvalidRequestLTE applies the LTE predicate on the "fallback_group_id_on_invalid_request" field.
+func FallbackGroupIDOnInvalidRequestLTE(v int64) predicate.Group {
+	return predicate.Group(sql.FieldLTE(FieldFallbackGroupIDOnInvalidRequest, v))
+}
+
+// FallbackGroupIDOnInvalidRequestIsNil applies the IsNil predicate on the "fallback_group_id_on_invalid_request" field.
+func FallbackGroupIDOnInvalidRequestIsNil() predicate.Group {
+	return predicate.Group(sql.FieldIsNull(FieldFallbackGroupIDOnInvalidRequest))
+}
+
+// FallbackGroupIDOnInvalidRequestNotNil applies the NotNil predicate on the "fallback_group_id_on_invalid_request" field.
+func FallbackGroupIDOnInvalidRequestNotNil() predicate.Group {
+	return predicate.Group(sql.FieldNotNull(FieldFallbackGroupIDOnInvalidRequest))
+}
+
 // ModelRoutingIsNil applies the IsNil predicate on the "model_routing" field.
 func ModelRoutingIsNil() predicate.Group {
 	return predicate.Group(sql.FieldIsNull(FieldModelRouting))
--- a/backend/ent/group_create.go
+++ b/backend/ent/group_create.go
@@ -286,6 +286,20 @@ func (_c *GroupCreate) SetNillableFallbackGroupID(v *int64) *GroupCreate {
 	return _c
 }

+// SetFallbackGroupIDOnInvalidRequest sets the "fallback_group_id_on_invalid_request" field.
+func (_c *GroupCreate) SetFallbackGroupIDOnInvalidRequest(v int64) *GroupCreate {
+	_c.mutation.SetFallbackGroupIDOnInvalidRequest(v)
+	return _c
+}
+
+// SetNillableFallbackGroupIDOnInvalidRequest sets the "fallback_group_id_on_invalid_request" field if the given value is not nil.
+func (_c *GroupCreate) SetNillableFallbackGroupIDOnInvalidRequest(v *int64) *GroupCreate {
+	if v != nil {
+		_c.SetFallbackGroupIDOnInvalidRequest(*v)
+	}
+	return _c
+}
+
 // SetModelRouting sets the "model_routing" field.
 func (_c *GroupCreate) SetModelRouting(v map[string][]int64) *GroupCreate {
 	_c.mutation.SetModelRouting(v)
@@ -640,6 +654,10 @@ func (_c *GroupCreate) createSpec() (*Group, *sqlgraph.CreateSpec) {
 		_spec.SetField(group.FieldFallbackGroupID, field.TypeInt64, value)
 		_node.FallbackGroupID = &value
 	}
+	if value, ok := _c.mutation.FallbackGroupIDOnInvalidRequest(); ok {
+		_spec.SetField(group.FieldFallbackGroupIDOnInvalidRequest, field.TypeInt64, value)
+		_node.FallbackGroupIDOnInvalidRequest = &value
+	}
 	if value, ok := _c.mutation.ModelRouting(); ok {
 		_spec.SetField(group.FieldModelRouting, field.TypeJSON, value)
 		_node.ModelRouting = value
@@ -1128,6 +1146,30 @@ func (u *GroupUpsert) ClearFallbackGroupID() *GroupUpsert {
 	return u
 }

+// SetFallbackGroupIDOnInvalidRequest sets the "fallback_group_id_on_invalid_request" field.
+func (u *GroupUpsert) SetFallbackGroupIDOnInvalidRequest(v int64) *GroupUpsert {
+	u.Set(group.FieldFallbackGroupIDOnInvalidRequest, v)
+	return u
+}
+
+// UpdateFallbackGroupIDOnInvalidRequest sets the "fallback_group_id_on_invalid_request" field to the value that was provided on create.
+func (u *GroupUpsert) UpdateFallbackGroupIDOnInvalidRequest() *GroupUpsert {
+	u.SetExcluded(group.FieldFallbackGroupIDOnInvalidRequest)
+	return u
+}
+
+// AddFallbackGroupIDOnInvalidRequest adds v to the "fallback_group_id_on_invalid_request" field.
+func (u *GroupUpsert) AddFallbackGroupIDOnInvalidRequest(v int64) *GroupUpsert {
+	u.Add(group.FieldFallbackGroupIDOnInvalidRequest, v)
+	return u
+}
+
+// ClearFallbackGroupIDOnInvalidRequest clears the value of the "fallback_group_id_on_invalid_request" field.
+func (u *GroupUpsert) ClearFallbackGroupIDOnInvalidRequest() *GroupUpsert {
+	u.SetNull(group.FieldFallbackGroupIDOnInvalidRequest)
+	return u
+}
+
 // SetModelRouting sets the "model_routing" field.
 func (u *GroupUpsert) SetModelRouting(v map[string][]int64) *GroupUpsert {
 	u.Set(group.FieldModelRouting, v)
@@ -1581,6 +1623,34 @@ func (u *GroupUpsertOne) ClearFallbackGroupID() *GroupUpsertOne {
 	})
 }

+// SetFallbackGroupIDOnInvalidRequest sets the "fallback_group_id_on_invalid_request" field.
+func (u *GroupUpsertOne) SetFallbackGroupIDOnInvalidRequest(v int64) *GroupUpsertOne {
+	return u.Update(func(s *GroupUpsert) {
+		s.SetFallbackGroupIDOnInvalidRequest(v)
+	})
+}
+
+// AddFallbackGroupIDOnInvalidRequest adds v to the "fallback_group_id_on_invalid_request" field.
+func (u *GroupUpsertOne) AddFallbackGroupIDOnInvalidRequest(v int64) *GroupUpsertOne {
+	return u.Update(func(s *GroupUpsert) {
+		s.AddFallbackGroupIDOnInvalidRequest(v)
+	})
+}
+
+// UpdateFallbackGroupIDOnInvalidRequest sets the "fallback_group_id_on_invalid_request" field to the value that was provided on create.
+func (u *GroupUpsertOne) UpdateFallbackGroupIDOnInvalidRequest() *GroupUpsertOne {
+	return u.Update(func(s *GroupUpsert) {
+		s.UpdateFallbackGroupIDOnInvalidRequest()
+	})
+}
+
+// ClearFallbackGroupIDOnInvalidRequest clears the value of the "fallback_group_id_on_invalid_request" field.
+func (u *GroupUpsertOne) ClearFallbackGroupIDOnInvalidRequest() *GroupUpsertOne {
+	return u.Update(func(s *GroupUpsert) {
+		s.ClearFallbackGroupIDOnInvalidRequest()
+	})
+}
+
 // SetModelRouting sets the "model_routing" field.
 func (u *GroupUpsertOne) SetModelRouting(v map[string][]int64) *GroupUpsertOne {
 	return u.Update(func(s *GroupUpsert) {
@@ -2205,6 +2275,34 @@ func (u *GroupUpsertBulk) ClearFallbackGroupID() *GroupUpsertBulk {
 	})
 }

+// SetFallbackGroupIDOnInvalidRequest sets the "fallback_group_id_on_invalid_request" field.
+func (u *GroupUpsertBulk) SetFallbackGroupIDOnInvalidRequest(v int64) *GroupUpsertBulk {
+	return u.Update(func(s *GroupUpsert) {
+		s.SetFallbackGroupIDOnInvalidRequest(v)
+	})
+}
+
+// AddFallbackGroupIDOnInvalidRequest adds v to the "fallback_group_id_on_invalid_request" field.
+func (u *GroupUpsertBulk) AddFallbackGroupIDOnInvalidRequest(v int64) *GroupUpsertBulk {
+	return u.Update(func(s *GroupUpsert) {
+		s.AddFallbackGroupIDOnInvalidRequest(v)
+	})
+}
+
+// UpdateFallbackGroupIDOnInvalidRequest sets the "fallback_group_id_on_invalid_request" field to the value that was provided on create.
+func (u *GroupUpsertBulk) UpdateFallbackGroupIDOnInvalidRequest() *GroupUpsertBulk {
+	return u.Update(func(s *GroupUpsert) {
+		s.UpdateFallbackGroupIDOnInvalidRequest()
+	})
+}
+
+// ClearFallbackGroupIDOnInvalidRequest clears the value of the "fallback_group_id_on_invalid_request" field.
+func (u *GroupUpsertBulk) ClearFallbackGroupIDOnInvalidRequest() *GroupUpsertBulk {
+	return u.Update(func(s *GroupUpsert) {
+		s.ClearFallbackGroupIDOnInvalidRequest()
+	})
+}
+
 // SetModelRouting sets the "model_routing" field.
 func (u *GroupUpsertBulk) SetModelRouting(v map[string][]int64) *GroupUpsertBulk {
 	return u.Update(func(s *GroupUpsert) {
--- a/backend/ent/group_update.go
+++ b/backend/ent/group_update.go
@@ -395,6 +395,33 @@ func (_u *GroupUpdate) ClearFallbackGroupID() *GroupUpdate {
 	return _u
 }

+// SetFallbackGroupIDOnInvalidRequest sets the "fallback_group_id_on_invalid_request" field.
+func (_u *GroupUpdate) SetFallbackGroupIDOnInvalidRequest(v int64) *GroupUpdate {
+	_u.mutation.ResetFallbackGroupIDOnInvalidRequest()
+	_u.mutation.SetFallbackGroupIDOnInvalidRequest(v)
+	return _u
+}
+
+// SetNillableFallbackGroupIDOnInvalidRequest sets the "fallback_group_id_on_invalid_request" field if the given value is not nil.
+func (_u *GroupUpdate) SetNillableFallbackGroupIDOnInvalidRequest(v *int64) *GroupUpdate {
+	if v != nil {
+		_u.SetFallbackGroupIDOnInvalidRequest(*v)
+	}
+	return _u
+}
+
+// AddFallbackGroupIDOnInvalidRequest adds value to the "fallback_group_id_on_invalid_request" field.
+func (_u *GroupUpdate) AddFallbackGroupIDOnInvalidRequest(v int64) *GroupUpdate {
+	_u.mutation.AddFallbackGroupIDOnInvalidRequest(v)
+	return _u
+}
+
+// ClearFallbackGroupIDOnInvalidRequest clears the value of the "fallback_group_id_on_invalid_request" field.
+func (_u *GroupUpdate) ClearFallbackGroupIDOnInvalidRequest() *GroupUpdate {
+	_u.mutation.ClearFallbackGroupIDOnInvalidRequest()
+	return _u
+}
+
 // SetModelRouting sets the "model_routing" field.
 func (_u *GroupUpdate) SetModelRouting(v map[string][]int64) *GroupUpdate {
 	_u.mutation.SetModelRouting(v)
@@ -829,6 +856,15 @@ func (_u *GroupUpdate) sqlSave(ctx context.Context) (_node int, err error) {
 	if _u.mutation.FallbackGroupIDCleared() {
 		_spec.ClearField(group.FieldFallbackGroupID, field.TypeInt64)
 	}
+	if value, ok := _u.mutation.FallbackGroupIDOnInvalidRequest(); ok {
+		_spec.SetField(group.FieldFallbackGroupIDOnInvalidRequest, field.TypeInt64, value)
+	}
+	if value, ok := _u.mutation.AddedFallbackGroupIDOnInvalidRequest(); ok {
+		_spec.AddField(group.FieldFallbackGroupIDOnInvalidRequest, field.TypeInt64, value)
+	}
+	if _u.mutation.FallbackGroupIDOnInvalidRequestCleared() {
+		_spec.ClearField(group.FieldFallbackGroupIDOnInvalidRequest, field.TypeInt64)
+	}
 	if value, ok := _u.mutation.ModelRouting(); ok {
 		_spec.SetField(group.FieldModelRouting, field.TypeJSON, value)
 	}
@@ -1513,6 +1549,33 @@ func (_u *GroupUpdateOne) ClearFallbackGroupID() *GroupUpdateOne {
 	return _u
 }

+// SetFallbackGroupIDOnInvalidRequest sets the "fallback_group_id_on_invalid_request" field.
+func (_u *GroupUpdateOne) SetFallbackGroupIDOnInvalidRequest(v int64) *GroupUpdateOne {
+	_u.mutation.ResetFallbackGroupIDOnInvalidRequest()
+	_u.mutation.SetFallbackGroupIDOnInvalidRequest(v)
+	return _u
+}
+
+// SetNillableFallbackGroupIDOnInvalidRequest sets the "fallback_group_id_on_invalid_request" field if the given value is not nil.
+func (_u *GroupUpdateOne) SetNillableFallbackGroupIDOnInvalidRequest(v *int64) *GroupUpdateOne {
+	if v != nil {
+		_u.SetFallbackGroupIDOnInvalidRequest(*v)
+	}
+	return _u
+}
+
+// AddFallbackGroupIDOnInvalidRequest adds value to the "fallback_group_id_on_invalid_request" field.
+func (_u *GroupUpdateOne) AddFallbackGroupIDOnInvalidRequest(v int64) *GroupUpdateOne {
+	_u.mutation.AddFallbackGroupIDOnInvalidRequest(v)
+	return _u
+}
+
+// ClearFallbackGroupIDOnInvalidRequest clears the value of the "fallback_group_id_on_invalid_request" field.
+func (_u *GroupUpdateOne) ClearFallbackGroupIDOnInvalidRequest() *GroupUpdateOne {
+	_u.mutation.ClearFallbackGroupIDOnInvalidRequest()
+	return _u
+}
+
 // SetModelRouting sets the "model_routing" field.
 func (_u *GroupUpdateOne) SetModelRouting(v map[string][]int64) *GroupUpdateOne {
 	_u.mutation.SetModelRouting(v)
@@ -1977,6 +2040,15 @@ func (_u *GroupUpdateOne) sqlSave(ctx context.Context) (_node *Group, err error)
 	if _u.mutation.FallbackGroupIDCleared() {
 		_spec.ClearField(group.FieldFallbackGroupID, field.TypeInt64)
 	}
+	if value, ok := _u.mutation.FallbackGroupIDOnInvalidRequest(); ok {
+		_spec.SetField(group.FieldFallbackGroupIDOnInvalidRequest, field.TypeInt64, value)
+	}
+	if value, ok := _u.mutation.AddedFallbackGroupIDOnInvalidRequest(); ok {
+		_spec.AddField(group.FieldFallbackGroupIDOnInvalidRequest, field.TypeInt64, value)
+	}
+	if _u.mutation.FallbackGroupIDOnInvalidRequestCleared() {
+		_spec.ClearField(group.FieldFallbackGroupIDOnInvalidRequest, field.TypeInt64)
+	}
 	if value, ok := _u.mutation.ModelRouting(); ok {
 		_spec.SetField(group.FieldModelRouting, field.TypeJSON, value)
 	}
--- a/backend/ent/migrate/schema.go
+++ b/backend/ent/migrate/schema.go
@@ -226,6 +226,7 @@ var (
 		{Name: "image_price_4k", Type: field.TypeFloat64, Nullable: true, SchemaType: map[string]string{"postgres": "decimal(20,8)"}},
 		{Name: "claude_code_only", Type: field.TypeBool, Default: false},
 		{Name: "fallback_group_id", Type: field.TypeInt64, Nullable: true},
+		{Name: "fallback_group_id_on_invalid_request", Type: field.TypeInt64, Nullable: true},
 		{Name: "model_routing", Type: field.TypeJSON, Nullable: true, SchemaType: map[string]string{"postgres": "jsonb"}},
 		{Name: "model_routing_enabled", Type: field.TypeBool, Default: false},
 	}
--- a/backend/ent/mutation.go
+++ b/backend/ent/mutation.go
@@ -3833,61 +3833,63 @@ func (m *AccountGroupMutation) ResetEdge(name string) error {
 // GroupMutation represents an operation that mutates the Group nodes in the graph.
 type GroupMutation struct {
 	config
-	op                       Op
-	typ                      string
-	id                       *int64
-	created_at               *time.Time
-	updated_at               *time.Time
-	deleted_at               *time.Time
-	name                     *string
-	description              *string
-	rate_multiplier          *float64
-	addrate_multiplier       *float64
-	is_exclusive             *bool
-	status                   *string
-	platform                 *string
-	subscription_type        *string
-	daily_limit_usd          *float64
-	adddaily_limit_usd       *float64
-	weekly_limit_usd         *float64
-	addweekly_limit_usd      *float64
-	monthly_limit_usd        *float64
-	addmonthly_limit_usd     *float64
-	default_validity_days    *int
-	adddefault_validity_days *int
-	image_price_1k           *float64
-	addimage_price_1k        *float64
-	image_price_2k           *float64
-	addimage_price_2k        *float64
-	image_price_4k           *float64
-	addimage_price_4k        *float64
-	claude_code_only         *bool
-	fallback_group_id        *int64
-	addfallback_group_id     *int64
-	model_routing            *map[string][]int64
-	model_routing_enabled    *bool
-	clearedFields            map[string]struct{}
-	api_keys                 map[int64]struct{}
-	removedapi_keys          map[int64]struct{}
-	clearedapi_keys          bool
-	redeem_codes             map[int64]struct{}
-	removedredeem_codes      map[int64]struct{}
-	clearedredeem_codes      bool
-	subscriptions            map[int64]struct{}
-	removedsubscriptions     map[int64]struct{}
-	clearedsubscriptions     bool
-	usage_logs               map[int64]struct{}
-	removedusage_logs        map[int64]struct{}
-	clearedusage_logs        bool
-	accounts                 map[int64]struct{}
-	removedaccounts          map[int64]struct{}
-	clearedaccounts          bool
-	allowed_users            map[int64]struct{}
-	removedallowed_users     map[int64]struct{}
-	clearedallowed_users     bool
-	done                     bool
-	oldValue                 func(context.Context) (*Group, error)
-	predicates               []predicate.Group
+	op                                      Op
+	typ                                     string
+	id                                      *int64
+	created_at                              *time.Time
+	updated_at                              *time.Time
+	deleted_at                              *time.Time
+	name                                    *string
+	description                             *string
+	rate_multiplier                         *float64
+	addrate_multiplier                      *float64
+	is_exclusive                            *bool
+	status                                  *string
+	platform                                *string
+	subscription_type                       *string
+	daily_limit_usd                         *float64
+	adddaily_limit_usd                      *float64
+	weekly_limit_usd                        *float64
+	addweekly_limit_usd                     *float64
+	monthly_limit_usd                       *float64
+	addmonthly_limit_usd                    *float64
+	default_validity_days                   *int
+	adddefault_validity_days                *int
+	image_price_1k                          *float64
+	addimage_price_1k                       *float64
+	image_price_2k                          *float64
+	addimage_price_2k                       *float64
+	image_price_4k                          *float64
+	addimage_price_4k                       *float64
+	claude_code_only                        *bool
+	fallback_group_id                       *int64
+	addfallback_group_id                    *int64
+	fallback_group_id_on_invalid_request    *int64
+	addfallback_group_id_on_invalid_request *int64
+	model_routing                           *map[string][]int64
+	model_routing_enabled                   *bool
+	clearedFields                           map[string]struct{}
+	api_keys                                map[int64]struct{}
+	removedapi_keys                         map[int64]struct{}
+	clearedapi_keys                         bool
+	redeem_codes                            map[int64]struct{}
+	removedredeem_codes                     map[int64]struct{}
+	clearedredeem_codes                     bool
+	subscriptions                           map[int64]struct{}
+	removedsubscriptions                    map[int64]struct{}
+	clearedsubscriptions                    bool
+	usage_logs                              map[int64]struct{}
+	removedusage_logs                       map[int64]struct{}
+	clearedusage_logs                       bool
+	accounts                                map[int64]struct{}
+	removedaccounts                         map[int64]struct{}
+	clearedaccounts                         bool
+	allowed_users                           map[int64]struct{}
+	removedallowed_users                    map[int64]struct{}
+	clearedallowed_users                    bool
+	done                                    bool
+	oldValue                                func(context.Context) (*Group, error)
+	predicates                              []predicate.Group
 }

 var _ ent.Mutation = (*GroupMutation)(nil)
@@ -4976,6 +4978,76 @@ func (m *GroupMutation) ResetFallbackGroupID() {
 	delete(m.clearedFields, group.FieldFallbackGroupID)
 }

+// SetFallbackGroupIDOnInvalidRequest sets the "fallback_group_id_on_invalid_request" field.
+func (m *GroupMutation) SetFallbackGroupIDOnInvalidRequest(i int64) {
+	m.fallback_group_id_on_invalid_request = &i
+	m.addfallback_group_id_on_invalid_request = nil
+}
+
+// FallbackGroupIDOnInvalidRequest returns the value of the "fallback_group_id_on_invalid_request" field in the mutation.
+func (m *GroupMutation) FallbackGroupIDOnInvalidRequest() (r int64, exists bool) {
+	v := m.fallback_group_id_on_invalid_request
+	if v == nil {
+		return
+	}
+	return *v, true
+}
+
+// OldFallbackGroupIDOnInvalidRequest returns the old "fallback_group_id_on_invalid_request" field's value of the Group entity.
+// If the Group object wasn't provided to the builder, the object is fetched from the database.
+// An error is returned if the mutation operation is not UpdateOne, or the database query fails.
+func (m *GroupMutation) OldFallbackGroupIDOnInvalidRequest(ctx context.Context) (v *int64, err error) {
+	if !m.op.Is(OpUpdateOne) {
+		return v, errors.New("OldFallbackGroupIDOnInvalidRequest is only allowed on UpdateOne operations")
+	}
+	if m.id == nil || m.oldValue == nil {
+		return v, errors.New("OldFallbackGroupIDOnInvalidRequest requires an ID field in the mutation")
+	}
+	oldValue, err := m.oldValue(ctx)
+	if err != nil {
+		return v, fmt.Errorf("querying old value for OldFallbackGroupIDOnInvalidRequest: %w", err)
+	}
+	return oldValue.FallbackGroupIDOnInvalidRequest, nil
+}
+
+// AddFallbackGroupIDOnInvalidRequest adds i to the "fallback_group_id_on_invalid_request" field.
+func (m *GroupMutation) AddFallbackGroupIDOnInvalidRequest(i int64) {
+	if m.addfallback_group_id_on_invalid_request != nil {
+		*m.addfallback_group_id_on_invalid_request += i
+	} else {
+		m.addfallback_group_id_on_invalid_request = &i
+	}
+}
+
+// AddedFallbackGroupIDOnInvalidRequest returns the value that was added to the "fallback_group_id_on_invalid_request" field in this mutation.
+func (m *GroupMutation) AddedFallbackGroupIDOnInvalidRequest() (r int64, exists bool) {
+	v := m.addfallback_group_id_on_invalid_request
+	if v == nil {
+		return
+	}
+	return *v, true
+}
+
+// ClearFallbackGroupIDOnInvalidRequest clears the value of the "fallback_group_id_on_invalid_request" field.
+func (m *GroupMutation) ClearFallbackGroupIDOnInvalidRequest() {
+	m.fallback_group_id_on_invalid_request = nil
+	m.addfallback_group_id_on_invalid_request = nil
+	m.clearedFields[group.FieldFallbackGroupIDOnInvalidRequest] = struct{}{}
+}
+
+// FallbackGroupIDOnInvalidRequestCleared returns if the "fallback_group_id_on_invalid_request" field was cleared in this mutation.
+func (m *GroupMutation) FallbackGroupIDOnInvalidRequestCleared() bool {
+	_, ok := m.clearedFields[group.FieldFallbackGroupIDOnInvalidRequest]
+	return ok
+}
+
+// ResetFallbackGroupIDOnInvalidRequest resets all changes to the "fallback_group_id_on_invalid_request" field.
+func (m *GroupMutation) ResetFallbackGroupIDOnInvalidRequest() {
+	m.fallback_group_id_on_invalid_request = nil
+	m.addfallback_group_id_on_invalid_request = nil
+	delete(m.clearedFields, group.FieldFallbackGroupIDOnInvalidRequest)
+}
+
 // SetModelRouting sets the "model_routing" field.
 func (m *GroupMutation) SetModelRouting(value map[string][]int64) {
 	m.model_routing = &value
@@ -5419,7 +5491,7 @@ func (m *GroupMutation) Type() string {
 // order to get all numeric fields that were incremented/decremented, call
 // AddedFields().
 func (m *GroupMutation) Fields() []string {
-	fields := make([]string, 0, 21)
+	fields := make([]string, 0, 22)
 	if m.created_at != nil {
 		fields = append(fields, group.FieldCreatedAt)
 	}
@@ -5477,6 +5549,9 @@ func (m *GroupMutation) Fields() []string {
 	if m.fallback_group_id != nil {
 		fields = append(fields, group.FieldFallbackGroupID)
 	}
+	if m.fallback_group_id_on_invalid_request != nil {
+		fields = append(fields, group.FieldFallbackGroupIDOnInvalidRequest)
+	}
 	if m.model_routing != nil {
 		fields = append(fields, group.FieldModelRouting)
 	}
@@ -5529,6 +5604,8 @@ func (m *GroupMutation) Field(name string) (ent.Value, bool) {
 		return m.ClaudeCodeOnly()
 	case group.FieldFallbackGroupID:
 		return m.FallbackGroupID()
+	case group.FieldFallbackGroupIDOnInvalidRequest:
+		return m.FallbackGroupIDOnInvalidRequest()
 	case group.FieldModelRouting:
 		return m.ModelRouting()
 	case group.FieldModelRoutingEnabled:
@@ -5580,6 +5657,8 @@ func (m *GroupMutation) OldField(ctx context.Context, name string) (ent.Value, e
 		return m.OldClaudeCodeOnly(ctx)
 	case group.FieldFallbackGroupID:
 		return m.OldFallbackGroupID(ctx)
+	case group.FieldFallbackGroupIDOnInvalidRequest:
+		return m.OldFallbackGroupIDOnInvalidRequest(ctx)
 	case group.FieldModelRouting:
 		return m.OldModelRouting(ctx)
 	case group.FieldModelRoutingEnabled:
@@ -5726,6 +5805,13 @@ func (m *GroupMutation) SetField(name string, value ent.Value) error {
 		}
 		m.SetFallbackGroupID(v)
 		return nil
+	case group.FieldFallbackGroupIDOnInvalidRequest:
+		v, ok := value.(int64)
+		if !ok {
+			return fmt.Errorf("unexpected type %T for field %s", value, name)
+		}
+		m.SetFallbackGroupIDOnInvalidRequest(v)
+		return nil
 	case group.FieldModelRouting:
 		v, ok := value.(map[string][]int64)
 		if !ok {
@@ -5775,6 +5861,9 @@ func (m *GroupMutation) AddedFields() []string {
 	if m.addfallback_group_id != nil {
 		fields = append(fields, group.FieldFallbackGroupID)
 	}
+	if m.addfallback_group_id_on_invalid_request != nil {
+		fields = append(fields, group.FieldFallbackGroupIDOnInvalidRequest)
+	}
 	return fields
 }

@@ -5801,6 +5890,8 @@ func (m *GroupMutation) AddedField(name string) (ent.Value, bool) {
 		return m.AddedImagePrice4k()
 	case group.FieldFallbackGroupID:
 		return m.AddedFallbackGroupID()
+	case group.FieldFallbackGroupIDOnInvalidRequest:
+		return m.AddedFallbackGroupIDOnInvalidRequest()
 	}
 	return nil, false
 }
@@ -5873,6 +5964,13 @@ func (m *GroupMutation) AddField(name string, value ent.Value) error {
 		}
 		m.AddFallbackGroupID(v)
 		return nil
+	case group.FieldFallbackGroupIDOnInvalidRequest:
+		v, ok := value.(int64)
+		if !ok {
+			return fmt.Errorf("unexpected type %T for field %s", value, name)
+		}
+		m.AddFallbackGroupIDOnInvalidRequest(v)
+		return nil
 	}
 	return fmt.Errorf("unknown Group numeric field %s", name)
 }
@@ -5908,6 +6006,9 @@ func (m *GroupMutation) ClearedFields() []string {
 	if m.FieldCleared(group.FieldFallbackGroupID) {
 		fields = append(fields, group.FieldFallbackGroupID)
 	}
+	if m.FieldCleared(group.FieldFallbackGroupIDOnInvalidRequest) {
+		fields = append(fields, group.FieldFallbackGroupIDOnInvalidRequest)
+	}
 	if m.FieldCleared(group.FieldModelRouting) {
 		fields = append(fields, group.FieldModelRouting)
 	}
@@ -5952,6 +6053,9 @@ func (m *GroupMutation) ClearField(name string) error {
 	case group.FieldFallbackGroupID:
 		m.ClearFallbackGroupID()
 		return nil
+	case group.FieldFallbackGroupIDOnInvalidRequest:
+		m.ClearFallbackGroupIDOnInvalidRequest()
+		return nil
 	case group.FieldModelRouting:
 		m.ClearModelRouting()
 		return nil
@@ -6020,6 +6124,9 @@ func (m *GroupMutation) ResetField(name string) error {
 	case group.FieldFallbackGroupID:
 		m.ResetFallbackGroupID()
 		return nil
+	case group.FieldFallbackGroupIDOnInvalidRequest:
+		m.ResetFallbackGroupIDOnInvalidRequest()
+		return nil
 	case group.FieldModelRouting:
 		m.ResetModelRouting()
 		return nil
--- a/backend/ent/runtime/runtime.go
+++ b/backend/ent/runtime/runtime.go
@@ -281,7 +281,7 @@ func init() {
 	// group.DefaultClaudeCodeOnly holds the default value on creation for the claude_code_only field.
 	group.DefaultClaudeCodeOnly = groupDescClaudeCodeOnly.Default.(bool)
 	// groupDescModelRoutingEnabled is the schema descriptor for model_routing_enabled field.
-	groupDescModelRoutingEnabled := groupFields[17].Descriptor()
+	groupDescModelRoutingEnabled := groupFields[18].Descriptor()
 	// group.DefaultModelRoutingEnabled holds the default value on creation for the model_routing_enabled field.
 	group.DefaultModelRoutingEnabled = groupDescModelRoutingEnabled.Default.(bool)
 	promocodeFields := schema.PromoCode{}.Fields()
--- a/backend/ent/schema/group.go
+++ b/backend/ent/schema/group.go
@@ -95,6 +95,10 @@ func (Group) Fields() []ent.Field {
 			Optional().
 			Nillable().
 			Comment("非 Claude Code 请求降级使用的分组 ID"),
+		field.Int64("fallback_group_id_on_invalid_request").
+			Optional().
+			Nillable().
+			Comment("无效请求兜底使用的分组 ID"),

 		// 模型路由配置 (added by migration 040)
 		field.JSON("model_routing", map[string][]int64{}).