Add suppressor for GetScope()

[viceroypenguin]

No description provided.

[Copilot]

Pull request overview

Adds a Roslyn diagnostic suppressor to prevent CA2000 false-positives when using Owned<T>.GetScope(out T) and introduces a dedicated test project to validate suppressor behavior.

Changes:

• Add OwnedDisposableScopeSuppressor (suppresses CA2000 for Owned<T>.GetScope(out T) patterns).
• Add suppressor test infrastructure and test cases for CA2000 suppression/non-suppression scenarios.
• Introduce an analyzers project and update packaging/solution/config to include it.

Reviewed changes

Copilot reviewed 10 out of 10 changed files in this pull request and generated 4 comments.

Show a summary per file

File	Description
src/Immediate.Cache.Analyzers/OwnedDisposableScopeSuppressor.cs	New suppressor implementation for CA2000 around Owned<T>.GetScope(out T).
src/Immediate.Cache.Analyzers/Immediate.Cache.Analyzers.csproj	New Roslyn component project for analyzers/suppressors.
tests/Immediate.Cache.Tests/SuppressorTests/SuppressorTestHelpers.cs	Test helper utilities for running suppressor/analyzer tests.
tests/Immediate.Cache.Tests/SuppressorTests/OwnedDisposableScopeSuppressorTests.cs	New test coverage validating suppression behavior.
tests/Immediate.Cache.Tests/Immediate.Cache.Tests.csproj	New test project for analyzer/suppressor tests.
src/Immediate.Cache/Immediate.Cache.csproj	Packs the analyzer DLL with the main package and references the analyzer project.
Directory.Packages.props	Adds central package versions needed for analyzer testing / Roslyn dependencies.
Immediate.Cache.slnx	Adds the new analyzers project and test project to the solution.
.editorconfig	Updates analyzer severities and adds scoped rules (currently with a path typo).
tests/Immediate.Cache.FunctionalTests/.editorconfig	Removes per-project editorconfig in favor of root configuration.

[Copilot]

Pull request overview

Copilot reviewed 10 out of 10 changed files in this pull request and generated 4 comments.