Add a new "Meeting Summarizer" (call-summarizer, ru/en) role that turns a raw
automatic call transcript into meeting notes: agreements, action items, open
questions, participant mapping with clarifying questions, web search for term
normalization only.
- replace the `research` and `meetings` bundles with a single `assistants`
bundle (researcher + call-summarizer); researcher content is unchanged
- bump researcher 8 -> 9: 327737b7 edited its instructions without a version
bump, breaking `check.mjs` on HEAD
- refresh scripts/content-hashes.json; `node scripts/check.mjs` passes
agent_vscode
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