fix: API validation + Terraform plan-time validators

API (operator v0.1.13):
- functions.go: добавлена валидация entrypoint (не пустой) и
  memory_mb (1-4096). Фиксирует БАГ-1/2/4 из негативных тестов.
- triggers.go: добавлена валидация type (только 'http'/'cron').
  Фиксирует БАГ-3 (неверное сообщение об ошибке).

Провайдер (v0.1.7):
- Добавлен пакет terraform-plugin-framework-validators v0.19.0
- function_resource: runtime OneOf, memory_mb 1-4096, timeout_sec 1-900
- trigger_resource: type OneOf(http, cron)
- job_resource: run_id AtLeast(0)
- examples/main.tf: обновлена версия до ~> 0.1.7

doc/errors/log.md: задокументированы исправления и результаты повторных тестов

terraform/provider/internal/resources/function_resource.go

@@ -23,12 +23,15 @@ import (
 
 	"terraform-provider-sless/internal/client"
 
+	"github.com/hashicorp/terraform-plugin-framework-validators/int64validator"
+	"github.com/hashicorp/terraform-plugin-framework-validators/stringvalidator"
 	"github.com/hashicorp/terraform-plugin-framework/attr"
 	"github.com/hashicorp/terraform-plugin-framework/diag"
 	"github.com/hashicorp/terraform-plugin-framework/resource"
 	"github.com/hashicorp/terraform-plugin-framework/resource/schema"
 	"github.com/hashicorp/terraform-plugin-framework/resource/schema/planmodifier"
 	"github.com/hashicorp/terraform-plugin-framework/resource/schema/stringplanmodifier"
+	"github.com/hashicorp/terraform-plugin-framework/schema/validator"
 	"github.com/hashicorp/terraform-plugin-framework/types"
 )
 
@@ -90,6 +93,9 @@ func (r *FunctionResource) Schema(_ context.Context, _ resource.SchemaRequest, r
 				PlanModifiers: []planmodifier.String{
 					stringplanmodifier.RequiresReplace(),
 				},
+				Validators: []validator.String{
+					stringvalidator.OneOf("nodejs20", "python3.11", "go1.21"),
+				},
 			},
 			"entrypoint": schema.StringAttribute{
 				Optional: true,
@@ -101,10 +107,16 @@ func (r *FunctionResource) Schema(_ context.Context, _ resource.SchemaRequest, r
 			"memory_mb": schema.Int64Attribute{
 				Optional: true,
 				Computed: true,
+				Validators: []validator.Int64{
+					int64validator.Between(1, 4096),
+				},
 			},
 			"timeout_sec": schema.Int64Attribute{
 				Optional: true,
 				Computed: true,
+				Validators: []validator.Int64{
+					int64validator.Between(1, 900),
+				},
 			},
 			"env_vars": schema.MapAttribute{
 				ElementType: types.StringType,