cowork-bot: fix ruff format warnings per automated code review

Address formatting issues flagged by automated code review bot on PR #38:
- Collapse multi-line runner.invoke() calls that fit within line width
- Remove unnecessary line wrapping in assertion expressions
- All 167 tests pass

Author: Coding-Dev-Tools

tests/test_cli.py

@@ -59,9 +59,7 @@ def test_convert_output_file(self, tmp_path):
         json_file.write_text(json.dumps({"name": "test"}))
         out_file = tmp_path / "out.sql"
 
-        result = runner.invoke(
-            app, ["convert", str(json_file), "--output", str(out_file)]
-        )
+        result = runner.invoke(app, ["convert", str(json_file), "--output", str(out_file)])
         assert result.exit_code == 0
         assert out_file.exists()
         content = out_file.read_text()
@@ -119,18 +117,14 @@ def test_convert_schema_only_with_flatten(self, tmp_path):
         json_file = tmp_path / "nested.json"
         json_file.write_text(json.dumps(data))
 
-        result = runner.invoke(
-            app, ["convert", str(json_file), "--schema-only", "--flatten"]
-        )
+        result = runner.invoke(app, ["convert", str(json_file), "--schema-only", "--flatten"])
         assert result.exit_code == 0
         assert "CREATE TABLE" in result.stdout
         assert "INSERT INTO" not in result.stdout
 
     def test_convert_stdin(self):
         """Read JSON from stdin."""
-        result = runner.invoke(
-            app, ["convert"], input=json.dumps({"name": "stdin_test"})
-        )
+        result = runner.invoke(app, ["convert"], input=json.dumps({"name": "stdin_test"}))
         assert result.exit_code == 0
         assert "'stdin_test'" in result.stdout
 
@@ -217,11 +211,7 @@ def test_mcp_command_exists(self):
         """mcp command is registered and responds to --help."""
         result = runner.invoke(app, ["mcp", "--help"])
         assert result.exit_code == 0
-        assert (
-            "MCP" in result.stdout
-            or "Model Context" in result.stdout
-            or "stdio" in result.stdout
-        )
+        assert "MCP" in result.stdout or "Model Context" in result.stdout or "stdio" in result.stdout
 
 
 class TestCLIErrorHandling:
@@ -265,9 +255,7 @@ def test_convert_boolean_values(self, tmp_path):
         json_file.write_text(json.dumps(data))
 
         # Postgres
-        result = runner.invoke(
-            app, ["convert", str(json_file), "--dialect", "postgres"]
-        )
+        result = runner.invoke(app, ["convert", str(json_file), "--dialect", "postgres"])
         assert result.exit_code == 0
         assert "TRUE" in result.stdout
         assert "FALSE" in result.stdout