feat(job): merge sless_function into sless_job — self-contained build+run

- FunctionJobSpec: убран FunctionRef, добавлены Runtime/Entrypoint/Env/S3Key/MemoryMB/TimeoutSec
- FunctionJobStatus: новый ImageRef, новая фаза Building
- FunctionJobReconciler: Building фаза (kaniko), убрана зависимость от Function CRD
  Builder+OperatorNamespace как поля struct; аннотация sless.kube5s.ru/build-job guard
- main.go: Builder+OperatorNamespace переданы в FunctionJobReconciler
- jobs.go handler: jobRequest/jobResponse без FunctionRef; новый UploadJobCode handler
- router.go: /jobs/{name}/upload маршрут
- client.go: JobRequest/JobResponse обновлены; UploadJobCode; uploadCodeToURL общий хелпер
- job_resource.go: полная переработка — источник/среда встроены в JobModel, ModifyPlan,
  Create с upload, wait_timeout_sec=900 по умолчанию (kaniko + выполнение)
- examples/POSTGRES/functions.tf: раскомментирован, sless_function удалён,
  sless_job самодостаточен (inline source_dir/runtime/entrypoint/env_vars)

api/v1alpha1/zz_generated.deepcopy.go

@@ -57,7 +57,7 @@ func (in *FunctionJob) DeepCopyInto(out *FunctionJob) {
 	*out = *in
 	out.TypeMeta = in.TypeMeta
 	in.ObjectMeta.DeepCopyInto(&out.ObjectMeta)
-	out.Spec = in.Spec
+	in.Spec.DeepCopyInto(&out.Spec)
 	in.Status.DeepCopyInto(&out.Status)
 }
 
@@ -112,8 +112,16 @@ func (in *FunctionJobList) DeepCopyObject() runtime.Object {
 }
 
 // DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
+// FunctionJobSpec содержит map[string]string Env — требует явного deep copy.
 func (in *FunctionJobSpec) DeepCopyInto(out *FunctionJobSpec) {
 	*out = *in
+	if in.Env != nil {
+		in, out := &in.Env, &out.Env
+		*out = make(map[string]string, len(*in))
+		for key, val := range *in {
+			(*out)[key] = val
+		}
+	}
 }
 
 // DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new FunctionJobSpec.