fix(tvf): validate non-negative width and height in pattern_match

[linxt20]

Description

Add validation for negative width and height parameters in the pattern_match table-valued function. Previously, passing a negative value for either parameter was silently accepted and produced an empty result set with no indication of misuse, which is inconsistent with how smooth and threshold are already validated.

Changes

• PatternMatchTableFunction.analyze(): Add non-negative checks for WIDTH_PARAM and HEIGHT_PARAM. A negative value now throws UDFException with a clear message, matching the existing behavior of smooth / threshold.
• IoTDBWindowTVFIT: Add two integration test cases asserting that width => -1.0 and height => -10.0 are rejected with the expected error messages.

Before

IoTDB:test_db> select * from pattern_match(
  ..., width => -1.0, height => 500.0, ...);
Empty set.    -- silently returns nothing

After

IoTDB:test_db> select * from pattern_match(
  ..., width => -1.0, ...);
Error: width must be a non-negative number, but got: -1.0

Type of change

• Bug fix (non-breaking change which fixes an issue)
• Test case

Compatibility

No behavioral change for valid (non-negative) inputs. Only previously-undefined behavior with negative inputs is now rejected at analysis time.