1.0.0-rc69

(chore): Improve wire test generation with client reuse and AST-level snippet handling. The client is now instantiated once in the setup method and reused across all tests, following the PHP/Python pattern for better performance. Replaced fragile regex-based snippet patching with AST-level code generation using skipClientInstantiation option. Helper methods are now centralized in a WireMockTestCase base class.