fix(tests): apply ruff-format to assert statements in homoglyph tests

Reformats four multiline assert-with-message statements to the inline
style required by ruff-format, fixing the pre-commit CI failure.

No logic changes — test semantics are identical.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: manjunathbhaskar

tests/shared/test_tool_name_validation.py

@@ -233,9 +233,9 @@ def test_cyrillic_a_rejected(self) -> None:
         """
         result = validate_tool_name("tool_А")
         assert not result.is_valid, "Cyrillic А should be rejected"
-        assert any(
-            "invalid characters" in w.lower() for w in result.warnings
-        ), f"Expected invalid-character warning. Got: {result.warnings}"
+        assert any("invalid characters" in w.lower() for w in result.warnings), (
+            f"Expected invalid-character warning. Got: {result.warnings}"
+        )
 
     def test_cyrillic_o_rejected(self) -> None:
         """Cyrillic О (U+041E) looks identical to Latin O."""
@@ -271,10 +271,9 @@ def test_rtl_override_rejected(self) -> None:
         """Right-to-left override character (U+202E) should be rejected."""
         result = validate_tool_name("tool‮_name")  # RIGHT-TO-LEFT OVERRIDE
         assert not result.is_valid
-        assert any(
-            "directional" in w.lower() or "rtl" in w.lower()
-            for w in result.warnings
-        ), f"Warning should mention directional formatting. Got: {result.warnings}"
+        assert any("directional" in w.lower() or "rtl" in w.lower() for w in result.warnings), (
+            f"Warning should mention directional formatting. Got: {result.warnings}"
+        )
 
     def test_ltr_override_rejected(self) -> None:
         """Left-to-right override character (U+202D) should be rejected."""
@@ -293,10 +292,9 @@ def test_decomposed_unicode_detected(self) -> None:
         decomposed = unicodedata.normalize("NFD", "café")
         result = validate_tool_name(f"tool_{decomposed}")
         # Should either be rejected or warn
-        assert (
-            not result.is_valid
-            or any("normalize" in w.lower() for w in result.warnings)
-        ), f"Decomposed forms should be detected. Got is_valid={result.is_valid}, warnings={result.warnings}"
+        assert not result.is_valid or any("normalize" in w.lower() for w in result.warnings), (
+            f"Decomposed forms should be detected. Got is_valid={result.is_valid}, warnings={result.warnings}"
+        )
 
     def test_nfkc_normalization_detected(self) -> None:
         """NFKC normalization changes should be detected."""
@@ -309,10 +307,9 @@ def test_nfkc_normalization_detected(self) -> None:
         result = validate_tool_name(original)
         # Should detect that normalization would change this
         if original != normalized:
-            assert (
-                not result.is_valid
-                or any("normalize" in w.lower() for w in result.warnings)
-            ), "NFKC normalization should be detected"
+            assert not result.is_valid or any("normalize" in w.lower() for w in result.warnings), (
+                "NFKC normalization should be detected"
+            )
 
 
 class TestUnicodeBoundaryConditions: