[refactor] Separate noise filtering and centralize noise file detection

[paul-fresquet]

Summary:
This PR completes the refactor around noise-file filtering in inventory analysis by centralizing detection logic and extending the known noise-file list while preserving existing session behavior.

Key changes:

• Added NoiseFileDetector to centralize noise-file matching in one place.
• Extended the known noise-file list with Windows/macOS/Linux entries (including existing legacy aliases already handled by the client).
• Updated FileSystemInspector.IsNoiseFileName(...) to delegate to NoiseFileDetector.
• Added dedicated unit tests for noise detection (full list coverage, case-sensitivity rules by platform, null/empty/unknown values).
• Added focused FileSystemInspector tests for noise-file behavior.
• Added documentation in docs/specs/SPEC-noise-file-detection.md with file origin by platform.

Implementation approach:

• Kept compatibility with current behavior controlled by SessionSettings.ExcludeSystemFiles.
• Preserved current Linux case-sensitive matching and non-Linux case-insensitive matching to avoid regressions.
• Implemented changes incrementally with focused commits: refactor, tests, docs.

Notes/risks:

• Full solution tests are blocked in this environment for ByteSync.Functions.IntegrationTests because Docker is unavailable; client unit/integration tests related to this change pass.

[Copilot]

Pull request overview

This PR refactors “noise file” filtering in the client inventory pipeline by centralizing filename matching into a dedicated NoiseFileDetector, expanding the known noise-file set, and documenting the list/behavior.

Changes:

• Added NoiseFileDetector with centralized OS-dependent (Linux case-sensitive vs non-Linux case-insensitive) filename matching.
• Updated FileSystemInspector.IsNoiseFileName(...) to delegate to the detector.
• Added/updated unit tests and introduced a spec doc enumerating known noise files and matching rules.

Reviewed changes

Copilot reviewed 5 out of 5 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
src/ByteSync.Client/Services/Inventories/NoiseFileDetector.cs	New centralized noise-file detection logic and expanded known-name list.
src/ByteSync.Client/Services/Inventories/FileSystemInspector.cs	Delegates noise filename detection to NoiseFileDetector.
tests/ByteSync.Client.UnitTests/Services/Inventories/NoiseFileDetectorTests.cs	New unit tests for detector behavior across OS + casing rules.
tests/ByteSync.Client.UnitTests/Services/Inventories/FileSystemInspectorTests.cs	Adds focused tests validating inspector noise-file behavior.
docs/specs/SPEC-noise-file-detection.md	Documents the known noise-file list and OS-specific matching behavior.

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[Copilot]

Pull request overview

Copilot reviewed 7 out of 7 changed files in this pull request and generated no new comments.

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[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
100.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud