feat(compat): declare core independence with core:"none" (INDEPENDENT status, block inheritance, no warning)

tests/group2_manifest_test.php

@@ -146,3 +146,36 @@ Harness::it('la descripcion del componente prevalece y hereda del paquete', func
         'components' => ['c' => ['files' => ['c.php'], 'description' => 7]],
     ]), 'description no-string es inválida');
 });
+
+Harness::it('core admite "none" como bloque con herencia completa', function () {
+    $m = Manifest::fromArray([
+        'name'    => 'pkg',
+        'version' => '1.0.0',
+        'core'    => 'none',
+        'components' => [
+            'a' => ['files' => ['src/A.php']],
+            'b' => ['files' => ['src/B.php'], 'core' => ['requires' => '>=0.2', 'tested' => '0.2']],
+        ],
+    ]);
+
+    ok($m->coreIndependent('a'), 'a hereda la independencia del paquete');
+    ok(!$m->coreIndependent('b'), 'b sobreescribe el bloque con su rango');
+    eq('>=0.2', $m->coreRequirement('b'));
+    eq('0.2', $m->testedCore('b'));
+    eq(null, $m->coreRequirement('a'), 'independiente no arrastra rangos');
+
+    $m2 = Manifest::fromArray([
+        'name'    => 'pkg2',
+        'version' => '1.0.0',
+        'core'    => ['requires' => '>=0.1'],
+        'components' => ['c' => ['files' => ['src/C.php'], 'core' => 'none']],
+    ]);
+    ok($m2->coreIndependent('c'), 'componente declara none sobre rango de paquete');
+    eq(null, $m2->coreRequirement('c'), 'el rango del paquete no se filtra al bloque declarado none');
+    eq('>=0.1', $m2->coreRequirement());
+
+    throws(fn () => Manifest::fromArray([
+        'name' => 'bad', 'version' => '1.0.0', 'core' => 'otro',
+        'components' => ['x' => ['files' => ['x.php']]],
+    ]), 'core string distinto de none es inválido');
+});