Merge bitcoin/bitcoin#26762: bugfix: Make CCheckQueue RAII-styled (attempt 2)

5b3ea5fa2e refactor: Move `{MAX,DEFAULT}_SCRIPTCHECK_THREADS` constants (Hennadii Stepanov)
6e17b31680 refactor: Make `CCheckQueue` non-copyable and non-movable explicitly (Hennadii Stepanov)
8111e74653 refactor: Drop unneeded declaration (Hennadii Stepanov)
9cf89f7a5b refactor: Make `CCheckQueue` constructor start worker threads (Hennadii Stepanov)
d03eaacbcf Make `CCheckQueue` destructor stop worker threads (Hennadii Stepanov)
be4ff3060b Move global `scriptcheckqueue` into `ChainstateManager` class (Hennadii Stepanov)

Pull request description:

  This PR:
  - makes `CCheckQueue` RAII-styled
  - gets rid of the global `scriptcheckqueue`
  - fixes https://github.com/bitcoin/bitcoin/issues/25448

  The previous attempt was in https://github.com/bitcoin/bitcoin/pull/18731.

ACKs for top commit:
  martinus:
    ACK 5b3ea5fa2e
  achow101:
    ACK 5b3ea5fa2e
  TheCharlatan:
    ACK 5b3ea5fa2e

Tree-SHA512: 45cca846e7ed107e3930149f0b616ddbaf2648d6cde381f815331b861b5d67ab39e154883ae174b8abb1dae485bc904318c50c51e5d6b46923d89de51c5eadb0

src/qt/optionsdialog.cpp

@@ -17,9 +17,9 @@
 
 #include <common/system.h>
 #include <interfaces/node.h>
+#include <node/chainstatemanager_args.h>
 #include <netbase.h>
 #include <txdb.h>
-#include <validation.h>
 
 #include <chrono>
 

src/qt/optionsmodel.cpp

@@ -17,6 +17,7 @@
 #include <mapport.h>
 #include <net.h>
 #include <netbase.h>
+#include <node/chainstatemanager_args.h>
 #include <txdb.h> // for -dbcache defaults
 #include <util/string.h>
 #include <validation.h>    // For DEFAULT_SCRIPTCHECK_THREADS