fix: clear the clang-tidy errors CI reported on this branch

All eleven were reproduced locally against the same checks before fixing.

Six unused includes, left behind when the merge unioned two sets of includes
and later edits removed their only users: algorithm, functional, numeric and
thread in the job-queue test, and cstdint in the sync-state test and the load
manager. Each verified unused by grepping for every symbol the header
provides, so none is a still-needed include being dropped.

The telemetry registry header included ranges for a std::ranges::all_of call,
but that algorithm comes from algorithm, which the header already included.

Two consteval handler-name loops became std::ranges::all_of, which reads as
the predicate it is, and the two flagged fixtures are const.

Also picks up the levelization baseline the check asked for: the consensus
span-name test adds one edge from the libxrpl tests to xrpld.consensus, which
is the exact line CI's diff requested.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

src/tests/libxrpl/telemetry/MetricsRegistry.cpp

@@ -56,6 +56,7 @@
 
 #include <gtest/gtest.h>
 
+#include <algorithm>
 #include <array>
 #include <cstddef>
 #include <set>
@@ -209,12 +210,9 @@ constexpr std::array kFoldToOtherHandlers = {
 consteval bool
 allPassThroughUnchanged()
 {
-    for (auto const name : kPassThroughHandlers)
-    {
-        if (MetricsRegistry::sanitiseHandler(name) != name)
-            return false;
-    }
-    return true;
+    return std::ranges::all_of(kPassThroughHandlers, [](auto const name) {
+        return MetricsRegistry::sanitiseHandler(name) == name;
+    });
 }
 
 /**
@@ -223,12 +221,9 @@ allPassThroughUnchanged()
 consteval bool
 allFoldToOther()
 {
-    for (auto const name : kFoldToOtherHandlers)
-    {
-        if (MetricsRegistry::sanitiseHandler(name) != MetricsRegistry::kHandlerOther)
-            return false;
-    }
-    return true;
+    return std::ranges::all_of(kFoldToOtherHandlers, [](auto const name) {
+        return MetricsRegistry::sanitiseHandler(name) == MetricsRegistry::kHandlerOther;
+    });
 }
 
 // Compile-time guarantees. Duplicated at runtime below so a failure names

src/tests/libxrpl/telemetry/SyncStateSignals.cpp

@@ -26,7 +26,6 @@
 #include <gtest/gtest.h>
 
 #include <chrono>
-#include <cstdint>
 
 using namespace xrpl;
 using namespace std::chrono_literals;