Tests for issue #4341: ArraySchema.arraySchema.requiredMode not working

[ewaostrowska]

Summary

Adds minimal bug reproduction tests for issue #4341.

Problem

After replacing required with requiredMode in #4286, the issue #3438 has reappeared. When using @ArraySchema with requiredMode on arraySchema, the field is not marked as required in the generated schema.

Tests Added

Test 1: testArraySchemaRequiredMode()

• Reproduces the bug where ArraySchema.arraySchema.requiredMode doesn't work
• Expected: Field 'addresses' should be in required array
• Actual: Required mode on arraySchema is ignored

Test 2: testWorkaround()

• Validates the workaround using schema.requiredMode
• Shows that placing requiredMode on schema instead works correctly

Expected Behavior

@ArraySchema(
    arraySchema = @Schema(requiredMode = RequiredMode.REQUIRED)
)
private List<String> addresses;

Should generate:

{
  "Person": {
    "required": ["addresses"]
  }
}

Current Workaround

@ArraySchema(
    arraySchema = @Schema(description = "The person"),
    schema = @Schema(requiredMode = RequiredMode.REQUIRED)
)
private List<String> addresses;

References

Closes #4341
Related to #3438, #4286

Checklist

• Minimal bug reproduction tests
• Tests compile successfully
• Tests demonstrate the bug
• Tests show working workaround