v0.4.6

What's Changed

• Harden log redaction and normalize common hf_fs URIs by @evalstate in #217
• refactor(app): remove Gradio Skybridge widget by @evalstate in #218
• Remove Skybridge absence tests by @evalstate in #220
• Migrate Skills over MCP to current SEP-2640 draft by @evalstate in #219

Full Changelog: v0.4.5...v0.4.6