[pmwoz]

Adopts the three opportunities from #61. Stacked on #61, which pins the T3 contract that defines unlink_pull_requests.

Changes to t3-adapter.md

• control-ui item: open the project's dev server with preview_open and target: {kind: "environment-port", port, path} instead of a localhost URL (feat(mcp): preview_open goes straight to a dev-server port pingdotgg/t3code#28027).
• "A merged dependency PR can end the run": unlink merged dependencies with unlink_pull_requests and states: ["merged"]. The call trusts T3's last known state, so the item falls back to unlink_pull_request for a merged dependency missing from unlinked (feat(mcp): unlink every PR in given states with one call pingdotgg/t3code#27925).
• "Events a PR watch cannot see": an event with a known time uses schedule_task with {type: "once", runAt} instead of an interval heartbeat. A one-time task stays listed after its run, so the existing delete_scheduled_task step still applies (feat(scheduler): run a scheduled task once at a specific date and time pingdotgg/t3code#28104).

Version

0.13.5 to 0.13.6.

Checks

• bun run check: pass (637 plugin files, 13 drift entries)
• bun test tools: 39 pass
• bun run typecheck: pass