refactor: убрать ограничение maxChars из хранилища соответствий

- Удалены поле maxChars, параметр конструктора и метод evictWhileOverLimit.
- Хранилище теперь ограничено только TTL (ttl-minutes), без вытеснения по объёму.
- Конструкторы переведены на (int ttlMinutes) и (int ttlMinutes, SharedIndex, PayloadCipher).
- Обновлены тесты и PipelineWarmup на новые сигнатуры.

src/test/java/ru/pdguard/LargeTextTest.java

@@ -74,7 +74,7 @@ class LargeTextTest {
     BenchmarkFixtures.Sample large = buildLargeText(TARGET_CHARS, 1);
     Pipeline pipeline =
         new Pipeline(
-            new RuleRegistry(), new Masker(), new PayloadStore(large.text().length() * 2L, 30));
+            new RuleRegistry(), new Masker(), new PayloadStore(30));
 
     long maskStarted = System.nanoTime();
     String masked = pipeline.process(large.text(), "large-mixed-1", SystemPolicy.DEFAULT);
@@ -102,7 +102,7 @@ class LargeTextTest {
   @Test
   void recallHoldsAtScale() {
     BenchmarkFixtures.Sample large = buildLargeText(TARGET_CHARS, 2);
-    Pipeline pipeline = new Pipeline(new RuleRegistry(), new Masker(), new PayloadStore(1L, 30));
+    Pipeline pipeline = new Pipeline(new RuleRegistry(), new Masker(), new PayloadStore(30));
 
     List<Span> found = pipeline.findPersonalData(large.text(), SystemPolicy.DEFAULT);
     int hit = 0;
@@ -138,7 +138,7 @@ class LargeTextTest {
         new Pipeline(
             new RuleRegistry(),
             new Masker(),
-            new PayloadStore(large.text().length() * 2L, 30),
+            new PayloadStore(30),
             new NameCascade(ENGINE, Optional.of(MODEL_PATH), 16, 4));
 
     long started = System.nanoTime();