[AGiorgetti]

Summary

Fixes #60.

• Match the documented framework-type policy: the exact System namespace, its child namespaces, or an assembly named exactly mscorlib, using ordinal case-sensitive comparisons.
• Retain application contracts in assemblies such as Systematic.Contracts and eliminate runtime-dependent IAsyncDisposable selection.
• Add 17 regression cases for assembly/namespace boundaries, real disposable interfaces, and explicit Base/Self registration; document the policy in XML, README, and vNext fixes.
• Preserve existing class filters, dependency versions, and CI workflow.

Executed validation

• Baseline before the fix: all 673 existing tests passed on .NET 8/9/10.
• Red/green: initial 16-case regression run failed 7 and passed 9 against the old implementation, then passed all 16 after the fix. A subsequent case-sensitivity control brings the final regression total to 17.
• Final full suites: 690/690 tests passed on each of .NET 8.0.31, 9.0.20, and 10.0.12 (SDK 10.0.401).
• Release solution build passed for all library/test targets, including netstandard2.0 and net472. The two existing net472 diagnostics-package support warnings remain.
• Native DI hot-cache repro passed on .NET 8/9/10: 100 interleaved enumerations after observed native compilation per runtime.
• Independent read-only review found no blocking issue; its suggested assembly-case regression is included.
• Windows CI run 222 passed for head d377a95ef0720d25b64da24a52ddfc30a5baec08 (PR merge test commit dd90ab7693e0baf785baa23db611315803bbe4e5): 690/690 tests on each of net472/net8.0/net9.0/net10.0, plus all four native DI hot-cache runs. Logs confirm the real disposable-interface regression passes on every target, including Microsoft.Bcl.AsyncInterfaces on net472. Pack and Publish were correctly skipped.

Prepared with OpenAI Codex.