v0.15.48

What's Changed

• feat(brain): add source and ingestion contracts by @alemicali in #224
• feat(brain): secure local ingestion and retrieval by @alemicali in #225
• feat(brain): expose scoped API and runtime tools by @alemicali in #226
• Release v0.15.48 by @alemicali in #252

Full Changelog: v0.15.47...v0.15.48