fix: add missing @staticmethod to convert_milliseconds_to_seconds

[Devguru-codes]

convert_milliseconds_to_seconds in unit_conversion_utils.py is missing the @staticmethod decorator, while its counterpart convert_to_milliseconds has it. This causes silent failures when called from an instance context (as in BaseSequence._extract_common_metadata), where self is consumed as the values parameter.

Fix

One-line change: add @staticmethod above convert_milliseconds_to_seconds.

File Changed

package/src/pyaslreport/utils/unit_conversion_utils.py

+    @staticmethod
     def convert_milliseconds_to_seconds(values: int | float | list[int | float]) -> int | float | list[int | float]:

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Before/After Comparison

main branch (before fix)

#	Test	Status	Detail
1	Class-level call (15.0 -> 0.015)	PASS	Works by accident
2	Instance-level call (15.0 -> 0.015)	FAIL	self consumed as values
3	@staticmethod present	FAIL	Missing decorator

Summary: PASSED=1 FAILED=2

fix/bug-2-missing-staticmethod branch (after fix)

#	Test	Status	Detail
1	Class-level call (15.0 -> 0.015)	PASS
2	Instance-level call (15.0 -> 0.015)	PASS
3	@staticmethod present	PASS

Summary: PASSED=3 FAILED=0

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Sanity Checks

Check	Result
convert_to_milliseconds(1.5)	1500
convert_milliseconds_to_seconds(1500)	1.5
convert_milliseconds_to_seconds([15.0, 30.0])	[0.015, 0.03]
No other files modified	Yes

Resolves #9