CapFence 0.9.0

Added

• Lightweight framework adapters for CrewAI, AutoGen, LlamaIndex, and PydanticAI.
• Import smoke and behavior tests for the expanded adapter surface.
• capfence[crypto] extra for Ed25519 audit signatures via cryptography.
• Local Makefile targets for test, lint, typecheck, build, docs, release-check, and cleanup.
• Repository hardening build plan under docs-dev/.

Changed

• Signed audit log verification now checks stored signatures when present and fails closed if the audit public key is missing or a signature is invalid.
• LangChain wrapper metadata now explicitly records the langchain framework marker.
• CLI version output now reads from package __version__.
• AutoGen example now uses the shipped CapFence wrapper.
• Package and website docs now align with current CLI commands, adapter support, and audit-signing behavior.

Fixed

• Invalid signature encodings now fail verification cleanly instead of raising.
• Public docs no longer advertise removed internal commands as current CLI features.