Add e2e tests for documentation and specialwords spector scenarios

[Copilot]

Adds missing end-to-end test coverage for TypeSpec spector scenarios in documentation and specialwords packages following patterns established in PR #9172.

Tests Added

Documentation package (6 tests):

• BulletPointsOpTests - validates bullet point rendering in operation docs
• BulletPointsModelTests - validates bullet points in model/enum documentation
• NumberedTests - validates numbered list formatting
• BoldTextTests - validates bold text formatting (**text**)
• ItalicTextTests - validates italic text formatting (*text*)
• CombinedFormattingTests - validates nested bold/italic combinations

SpecialWords package (1 test):

• DictMethodsTests - validates Python dict method names as model properties

Example

@Test
public void testBulletPointsModel() {
    client.bulletPointsModel(new BulletPointsModel(BulletPointsEnum.SIMPLE));
}

Each test exercises the generated Java client against TypeSpec definitions in packages/http-specs/specs/ and validates that reserved words and documentation formatting features are correctly handled by the generator.

Original prompt

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This section details on the original issue you should resolve

<issue_title>tsp, fill spector tests</issue_title>
<issue_description>Refer to this PR to see test cases that should be added: https://github.com/microsoft/typespec/pull/9172/files

documentation and specialwords should be supported and can add tests.

Follow https://github.com/microsoft/typespec/blob/main/.github/instructions/http-client-java.instructions.md#add-end-to-end-e2e-test-case for the steps.

.tsp files can be found in https://github.com/microsoft/typespec/tree/main/packages/http-specs/specs and https://github.com/Azure/typespec-azure/tree/main/packages/azure-http-specs/specs
</issue_description>

<agent_instructions>Follow https://github.com/microsoft/typespec/blob/main/.github/instructions/http-client-java.instructions.md#add-end-to-end-e2e-test-case for the steps.

.tsp files can be found in https://github.com/microsoft/typespec/tree/main/packages/http-specs/specs and https://github.com/Azure/typespec-azure/tree/main/packages/azure-http-specs/specs</agent_instructions>

Comments on the Issue (you are @copilot in this section)

• Fixes tsp, fill spector tests Azure/autorest.java#3244

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