Add the bloc_related_class_naming lint

[PiotrRogulski]

Continuation of #458

[Copilot]

Pull request overview

Adds a new bloc_related_class_naming lint to enforce naming conventions for Bloc/Cubit-related types (Event/State/Presentation Event), building on the bloc-architecture lint set introduced in #458.

Changes:

• Introduce BlocRelatedClassNaming lint that inspects Bloc/Cubit generic type arguments (and BlocPresentationMixin usage).
• Add shared bloc inspection helpers (bloc_utils.dart) to identify bloc/cubit types and extract relevant type annotations.
• Add test coverage and test-only mock libraries (including bloc_presentation), register the lint in the plugin, and document it in the README.

Reviewed changes

Copilot reviewed 8 out of 8 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
packages/leancode_lint/lib/src/lints/bloc_related_class_naming.dart	Implements the new lint and reporting logic for related class naming.
packages/leancode_lint/lib/src/bloc_utils.dart	Adds shared utilities for detecting bloc/cubit classes and extracting event/state/presentation-event types.
packages/leancode_lint/lib/plugin.dart	Registers the new lint in the plugin.
packages/leancode_lint/README.md	Documents the new lint and its naming rules.
packages/leancode_lint/test/test_cases/bloc_related_class_naming_test.dart	Adds tests verifying diagnostics for bloc/cubit naming and external-library ignore behavior.
packages/leancode_lint/test/mock_libraries/bloc.dart	Extends the bloc mock to include BlocBase and Bloc, enabling bloc tests.
packages/leancode_lint/test/mock_libraries/bloc_presentation.dart	Adds a mock bloc_presentation package with BlocPresentationMixin.
packages/leancode_lint/test/mock_libraries.dart	Wires the new bloc_presentation mock into the test harness.

---

💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.