teams: a local launch writes no Close/Reopen note to the team's Traffic

[AbirAbbas]

What happened

On a plain codeaf launch (no --host), closing a team and reopening it on the teams page writes no Close/Reopen note to that team's Traffic log. teamsUndoClose in internal/tui3/teamclose.go sends the person reopened the team, and close sends its equivalent, but on a local launch neither reaches the log. This was found on 2026-09-25 while fixing #1516's item 6.

It has the same cause as #1516's item 6. The local launch's teams seam (localDoors in cmd/codeaf/chatv3_local.go) was not handed the door that the engine road uses. Item 6 fixed History; the Traffic write for these notes is still missing.

Replication

Deterministic: a cmd/codeaf test that builds the plain-launch doors (localDoors), closes a team through the seam and reopens it, then reads teams.ReadTraffic for that team. Today no close/reopen entry is there. TestPlainLaunchReadsClosedTeamReportFromEngineProfile (#1516) is the pattern to copy.

By hand:

1. Run codeaf.
2. Press alt+2, make a team with a manager, and close it with Close.
3. Reopen it with u.
4. Look at the manager's Traffic column. It shows no close or reopen line.

The fix

A local launch writes the same Close/Reopen notes to Traffic as the engine road does.

Acceptance

• e2e: on a plain launch, the manager's Traffic shows the close and the reopen lines after the steps above.
• Unit: the localDoors seam test sees both entries in teams.ReadTraffic.