refactor postgres: completely remove public AutostartDistlock enum

Completely removes the `DistLockComponentBase::AutostartDistlock` public enum and finalizes a series of refactorings, replacing manual distlock startup/shutdown management with an automated solution.
commit_hash:d8ac7fdf0e4f5a897071178035568c78342bb80d

Author: lexeyo

postgresql/include/userver/storages/postgres/dist_lock_component_base.hpp

@@ -67,18 +67,8 @@ namespace storages::postgres {
 /// @see @ref scripts/docs/en/userver/periodics.md
 class DistLockComponentBase : public components::ComponentBase {
 public:
-    // This enum is going to be completely removed.
-    enum class AutostartDistlock : bool { kYes = true };
-
     struct DisableAutostartAtBase {};
 
-    // This .ctor is going to be completely removed.
-    DistLockComponentBase(
-        const components::ComponentConfig& component_config,
-        const components::ComponentContext& component_context,
-        AutostartDistlock autostart_at_base_component
-    );
-
     /// @brief Constructs the distlock base and enables automatic startup and shutdown of the distlock.
     DistLockComponentBase(
         const components::ComponentConfig& component_config,
@@ -155,12 +145,12 @@ class DistLockComponentBase : public components::ComponentBase {
     bool IsCancelAdvised() const;
 
 private:
-    enum class AutostartDistlockInternal : bool { kNo = false, kYes = true };
+    enum class AutostartDistlock : bool { kNo = false, kYes = true };
 
     DistLockComponentBase(
         const components::ComponentConfig& component_config,
         const components::ComponentContext& component_context,
-        AutostartDistlockInternal enable_autostart_at_base
+        AutostartDistlock enable_autostart_at_base
     );
 
     bool ShouldRunOnHost(const dynamic_config::Snapshot& config) const;
@@ -172,7 +162,7 @@ class DistLockComponentBase : public components::ComponentBase {
     std::unique_ptr<dist_lock::DistLockedWorker> worker_;
     bool autostart_;
     bool testsuite_enabled_{false};
-    AutostartDistlockInternal enable_autostart_at_base_;
+    AutostartDistlock enable_autostart_at_base_;
     dist_lock::DistLockSettings default_settings_;
 
     concurrent::AsyncEventSubscriberScope subscription_token_;

postgresql/src/storages/postgres/dist_lock_component_base.cpp

@@ -24,7 +24,7 @@ namespace storages::postgres {
 DistLockComponentBase::DistLockComponentBase(
     const components::ComponentConfig& component_config,
     const components::ComponentContext& component_context,
-    AutostartDistlockInternal enable_autostart_at_base
+    AutostartDistlock enable_autostart_at_base
 )
     : components::ComponentBase(component_config, component_context),
       config_(component_context.FindComponent<components::DynamicConfig>().GetSource()),
@@ -86,7 +86,7 @@ DistLockComponentBase::DistLockComponentBase(
         {{"distlock_name", component_config.Name()}}
     );
 
-    const bool autostart_enabled = enable_autostart_at_base_ == AutostartDistlockInternal::kYes;
+    const bool autostart_enabled = enable_autostart_at_base_ == AutostartDistlock::kYes;
     if (component_config["testsuite-support"].As<bool>(autostart_enabled)) {
         auto& testsuite_tasks = testsuite::GetTestsuiteTasks(component_context);
 
@@ -107,25 +107,18 @@ DistLockComponentBase::DistLockComponentBase(
     }
 }
 
-DistLockComponentBase::DistLockComponentBase(
-    const components::ComponentConfig& component_config,
-    const components::ComponentContext& component_context,
-    AutostartDistlock
-)
-    : storages::postgres::DistLockComponentBase(component_config, component_context) {}
-
 DistLockComponentBase::DistLockComponentBase(
     const components::ComponentConfig& component_config,
     const components::ComponentContext& component_context
 )
-    : storages::postgres::DistLockComponentBase(component_config, component_context, AutostartDistlockInternal::kYes) {}
+    : storages::postgres::DistLockComponentBase(component_config, component_context, AutostartDistlock::kYes) {}
 
 DistLockComponentBase::DistLockComponentBase(
     const components::ComponentConfig& component_config,
     const components::ComponentContext& component_context,
     DisableAutostartAtBase
 )
-    : storages::postgres::DistLockComponentBase(component_config, component_context, AutostartDistlockInternal::kNo) {}
+    : storages::postgres::DistLockComponentBase(component_config, component_context, AutostartDistlock::kNo) {}
 
 DistLockComponentBase::~DistLockComponentBase() { subscription_token_.Unsubscribe(); }
 
@@ -134,7 +127,7 @@ dist_lock::DistLockedWorker& DistLockComponentBase::GetWorker() { return *worker
 bool DistLockComponentBase::OwnsLock() const noexcept { return worker_->OwnsLock() || testsuite_enabled_; }
 
 void DistLockComponentBase::AutostartDistLock() {
-    UASSERT(enable_autostart_at_base_ == AutostartDistlockInternal::kNo);
+    UASSERT(enable_autostart_at_base_ == AutostartDistlock::kNo);
 
     if (testsuite_enabled_) {
         return;