Agenthatch v1.0

RAG-native skillagent: a compiled agent can now load, switch between,
and chain multiple SKILL.md skills at runtime. Each skill gets its own
knowledge base context with persistent memory across sessions.

Knowledge-backed agents: drop markdown docs into knowledge/ and the
agent indexes them for retrieval. No external vector DB required.

Pipeline fixes: unified stream/sync output paths, auto-continuation
suppression for meta-narration, and a rewritten agent loop that handles
multi-turn RAG without context pollution.

439 tests passed across dialogue, edge case, and multi-turn scenarios.

pip install agenthatch