Describe which commit type to use for type annotations

[voetberg]

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[0xquark]

I would suggest adding this as an example in the list of examples for choosing the correct type:

documentation/docs/contributing.md

Lines 235 to 258 in ffa2d6d

	**Choosing the Right Type:**
	Sometimes it's unclear which type to use. Consider the **intent** and **impact** of your change:
	| Ambiguity | Choose | When |
	|-----------|--------|------|
	| `style` vs `refactor` | `style` | Formatting, whitespace, comment tweaks |
	| `style` vs `refactor` | `refactor` | Modernizing syntax, restructuring code |
	| `fix` vs `refactor` | `fix` | Correcting incorrect behavior |
	| `fix` vs `refactor` | `refactor` | Improving code without fixing a bug |
	| `docs` vs `style` | `docs` | Updating documentation files or docstrings |
	| `docs` vs `style` | `style` | Minor comment formatting within code |
	| `test` vs `fix` | `fix` | Fixing flaky test due to race condition |
	| `test` vs `fix` | `test` | Adding new test cases or correcting test logic |
	**Examples:**
	| Scenario | Preferred | Rationale |
	|----------|-----------|-----------|
	| Replacing `Union[X, None]` with `Optional[X]` across 60+ files | `refactor(Core): Remove deprecated constructs from the typing module` | Modernizes codebase to newer Python conventions |
	| Adding type hints to function signatures | `style(Core): Add type hints to transfer functions` | Improves code documentation without changing behavior |
	| Fixing a test that fails intermittently due to timing | `fix(Testing): Resolve judge evaluator test flakiness` | Corrects broken behavior in test suite |
	| Adding new test cases for edge cases | `test(Testing): Add tests for attaching nonexistent DIDs` | Extends test coverage |
	| Updating README with new installation steps | `docs(Documentation): Update installation instructions` | Documentation-only change |

[voetberg]

I would suggest adding this as an example in the list of examples for choosing the correct type:

Ah, never saw that in that table. Corrected.