chore(team-server): remove self-hosted server runtime (per #242)

[jinhongkuan]

Closes #242 (when merged).

Summary

Removes the self-hosted team-server runtime per the v0 Productization decision (Notion: 📦 v0 Productization §2). v0's team mode is a remote append-only event-log adapter consumed by pull-based CLI sync — not a long-running HTTP server with workers. The committed code is the wrong shape and we have decided not to ship it.

66 files changed: 64 deletions + 2 surgical edits.

What's deleted

• team_server/ — entire directory (26 files: HTTP API, Slack/Notion OAuth, workers, extraction pipeline)
• events/team_server_{bridge,consumer,pull}.py
• deploy/{Dockerfile.team-server,team-server.docker-compose.yml}
• 24 tests/test_team_server_*.py + tests/test_materializer_team_server_pull.py
• 4 plan-priority-c-team-server-*.md
• docs/research-brief-priority-c-selective-ingest-2026-05-02.md

What's edited (surgical repairs)

• server.py — remove team_consumer_task startup + shutdown blocks (the only call site of the deleted events.team_server_consumer). The MCP stdio loop is unaffected.
• events/materializer.py — remove the team-server-specific event_type='ingest' bridge in replay_new_events(). The existing event_type='ingest.completed' handler is unchanged and still works for non-team-server payloads.

What's preserved (v0-conformant, right shape)

• events/__init__.py, events/CLAUDE.md, events/models.py
• events/writer.py — local append-only file writer (v0 §2 substrate)
• events/materializer.py — local ledger projection (now bridge-free)
• events/transcript_queue.py — SessionEnd hook queue ([P1] SessionEnd capture-corrections hook is silently broken — design pivot to next-session surfacing #156)
• events/team_adapter.py — dual-write adapter; will be renamed + generalized in a follow-up issue when the Drive/S3 backend lands

Verification

• grep -r 'from team_server\\|import team_server\\|events\\.team_server_' → empty
• python3 -c 'import ast; ast.parse(...)' on modified files → clean
• ruff check server.py events/materializer.py → All checks passed

Restoration path

If we ever needed to bring this back (we won't), git revert <merge-sha-of-this-PR> on a fresh branch off dev reapplies the entire surface mechanically. That's the design intent of shipping this as a deletion-only PR per the #242 PR-structure clarification.

Issues becoming moot when this lands

• team-server: materializer dispatches on event_type='ingest.completed' but team-server emits 'ingest' — extractor output is downstream-dead #160 (team-server materializer dispatch bug)
• team-server: channel_allowlist table defined and queried, but never populated — Slack ingest plumbed but inert #161 (channel_allowlist never populated)
• BicameralAI/bicameral-daemon#15 (write decisions to team-server — superseded by Drive/S3 adapter follow-up)

Out of scope (separate follow-up issue, not this PR)

1. Build the Drive/S3/Dropbox event-log adapter (the v0 §2 commitment).
2. Rename + generalize TeamWriteAdapter once the pluggable backend lands.
3. Adjust setup_wizard to gate team-mode on the new adapter.

Test plan

• grep clean (no orphan imports)
• ast.parse clean on modified files
• ruff clean on modified files
• CI run on this PR (mypy + full test suite — assumes test_team_server_* deletions don't leave orphan fixtures)
• Local pipx install --force ~/github/bicameral-mcp smoke test on a non-team install

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