Memory consolidation: archive 2026-03-08..09, update MEMORY.md

memory/archive/2026-03/2026-03-08.md

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+# 2026-03-08
+
+## Decisions
+- Use Poetry for package management
+- Install aiohttp to fix CLI dependency
+
+## Learnings
+- Poetry virtualenvs need to be rebuilt after dependency changes
+- Use `pip install -e` for development
+
+## Facts
+- Python 3.13.5
+- Debian Trixie

memory/archive/2026-03/2026-03-09.md

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+# 2026-03-09
+
+## Learnings
+- Matrix plugin duplicate issue caused silent failures
+- `groupAllowFrom` needed for group policy allowlist
+
+## Actions
+- Removed duplicate plugin copies
+- Reinstalled matrix plugin via npm