v0.4.1

Changes

• Validate evidence bundles with Pydantic dataclass schemas instead of a hand-written nested parser.
• Verify the current stateless MCP 2026-07-28 discovery flow.
• Run clean-wheel MCP smoke tests outside the source checkout.

Verification

• 38 tests passed with 92.94% coverage.
• CI passed on Python 3.10–3.13.
• Built wheel and source distribution passed Twine checks.