fix(query): allow string type for minimumShouldMatch parameter

Elasticsearch accepts string values like "75%" or "2<90%" for minimum_should_match.
Changed type from int|null to int|string|null in ElasticMatch and MultiMatch.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: Spamercz

src/Query/ElasticMatch.php

@@ -16,7 +16,7 @@ public function __construct(
 		private bool|int|string|null $query,
 		private float $boost = 1.0,
 		private \Spameri\ElasticQuery\Query\Match\Fuzziness|null $fuzziness = null,
-		private int|null $minimumShouldMatch = null,
+		private int|string|null $minimumShouldMatch = null,
 		private string $operator = \Spameri\ElasticQuery\Query\Match\Operator::OR,
 		private string|null $analyzer = null,
 	)

src/Query/MultiMatch.php

@@ -17,7 +17,7 @@ public function __construct(
 		private float $boost = 1.0,
 		private \Spameri\ElasticQuery\Query\Match\Fuzziness|null $fuzziness = null,
 		private string $type = \Spameri\ElasticQuery\Query\Match\MultiMatchType::BEST_FIELDS,
-		private int|null $minimumShouldMatch = null,
+		private int|string|null $minimumShouldMatch = null,
 		private string $operator = \Spameri\ElasticQuery\Query\Match\Operator::OR,
 		private string|null $analyzer = null,
 	)

tests/SpameriTests/ElasticQuery/Query/ElasticMatch.phpt

@@ -83,6 +83,54 @@ class ElasticMatch extends \Tester\TestCase
 	}
 
 
+	public function testMinimumShouldMatchString() : void
+	{
+		$match = new \Spameri\ElasticQuery\Query\ElasticMatch(
+			'name',
+			'Avengers Endgame',
+			1.0,
+			null,
+			'75%',
+		);
+
+		$array = $match->toArray();
+
+		\Tester\Assert::same('75%', $array['match']['name']['minimum_should_match']);
+	}
+
+
+	public function testMinimumShouldMatchCombinationString() : void
+	{
+		$match = new \Spameri\ElasticQuery\Query\ElasticMatch(
+			'name',
+			'Avengers Endgame Infinity War',
+			1.0,
+			null,
+			'2<90%',
+		);
+
+		$array = $match->toArray();
+
+		\Tester\Assert::same('2<90%', $array['match']['name']['minimum_should_match']);
+	}
+
+
+	public function testMinimumShouldMatchInt() : void
+	{
+		$match = new \Spameri\ElasticQuery\Query\ElasticMatch(
+			'name',
+			'Avengers Endgame',
+			1.0,
+			null,
+			2,
+		);
+
+		$array = $match->toArray();
+
+		\Tester\Assert::same(2, $array['match']['name']['minimum_should_match']);
+	}
+
+
 	public function tearDown() : void
 	{
 		$ch = \curl_init();

tests/SpameriTests/ElasticQuery/Query/MultiMatch.phpt

@@ -154,6 +154,57 @@ class MultiMatch extends \Tester\TestCase
 	}
 
 
+	public function testMinimumShouldMatchString(): void
+	{
+		$multiMatch = new \Spameri\ElasticQuery\Query\MultiMatch(
+			['title', 'description'],
+			'search term',
+			1.0,
+			null,
+			\Spameri\ElasticQuery\Query\Match\MultiMatchType::BEST_FIELDS,
+			'75%',
+		);
+
+		$array = $multiMatch->toArray();
+
+		\Tester\Assert::same('75%', $array['multi_match']['minimum_should_match']);
+	}
+
+
+	public function testMinimumShouldMatchCombinationString(): void
+	{
+		$multiMatch = new \Spameri\ElasticQuery\Query\MultiMatch(
+			['title', 'description'],
+			'search term query',
+			1.0,
+			null,
+			\Spameri\ElasticQuery\Query\Match\MultiMatchType::BEST_FIELDS,
+			'2<90%',
+		);
+
+		$array = $multiMatch->toArray();
+
+		\Tester\Assert::same('2<90%', $array['multi_match']['minimum_should_match']);
+	}
+
+
+	public function testMinimumShouldMatchInt(): void
+	{
+		$multiMatch = new \Spameri\ElasticQuery\Query\MultiMatch(
+			['title', 'description'],
+			'search term',
+			1.0,
+			null,
+			\Spameri\ElasticQuery\Query\Match\MultiMatchType::BEST_FIELDS,
+			2,
+		);
+
+		$array = $multiMatch->toArray();
+
+		\Tester\Assert::same(2, $array['multi_match']['minimum_should_match']);
+	}
+
+
 	public function testCreate(): void
 	{
 		$multiMatch = new \Spameri\ElasticQuery\Query\MultiMatch(