Issue with overlapping filenames in different directories

[wyardley]

Describe the bug
Came across this when working on moving a large codebase over from pytest-snapshot to syrupy. This mostly comes up when randomized subsets of files are chosen (using test splitting), and a file from one directory is also a file in another directory that's not called in the test invocation.

To reproduce

Given a structure like this:

|-- module_a
|   |-- __init__.py
|   `-- tests
|       |-- __init__.py
|       |-- __snapshots__
|       |   |-- test_foo.ambr
|       |   `-- test_views.ambr
|       |-- test_foo.py
|       `-- test_views.py
|-- module_b
|   |-- __init__.py
|   `-- tests
|       |-- __init__.py
|       |-- __snapshots__
|       |   `-- test_views.ambr
|       `-- test_views.py

Here's a minimal reproduction case: https://github.com/wyardley/syrupy_repro

1. Clone repo above
2. uv sync --dev
3. uv run pytest module_a/tests/test_foo.py module_b/tests/test_views.py

Expected behavior
syrupy doesn't try to create / remove snapshots for similar file name patterns, unless it's actually the exact corresponding snapshot.

Screenshots

Environment (please complete the following information):

• OS: Mac OSX 26.3.1
• Syrupy Version: 5.1.0
• Python Version: 3.12.11

Additional context
In our case, we have certain file patterns that are common, and use CircleCI test splitting with high parallelism, so this came up a lot.

Possibly related areas of the code:

syrupy/src/syrupy/report.py

Lines 224 to 226 in 2034d2b

	if self._provided_test_paths and not self._ran_items_match_location(
	snapshot_location
	):

syrupy/src/syrupy/location.py

Lines 139 to 154 in 2034d2b

	def matches_snapshot_location(self, snapshot_location: str) -> bool:
	loc = Path(snapshot_location)
	if self.is_item_parametrized:
	return self.basename == loc.stem or (
	self.basename == loc.parent.name
	and (
	loc.stem == self.snapshot_name_parametrized
	or loc.stem.startswith(f"{self.snapshot_name_parametrized}.")
	or loc.stem.startswith(f"{self.snapshot_name_parametrized}[")
	)
	)
	# "test_file" should match "test_file.ext" or "test_file/whatever.ext", but not
	# "test_file_suffix.ext"
	return self.basename == loc.stem or self.basename == loc.parent.name

(possibly because of only the stem being compared).