chore(task): archive 00-join-claude

.trellis/tasks/00-join-claude/task.json → .trellis/tasks/archive/2026-06/00-join-claude/task.json

@@ -3,7 +3,7 @@
   "name": "00-join-claude",
   "title": "Joining: Onboard to this Trellis project (claude)",
   "description": "Onboard a new developer to an existing Trellis project: learn the workflow, conventions, and find assigned work",
-  "status": "in_progress",
+  "status": "completed",
   "dev_type": "docs",
   "scope": null,
   "package": null,
@@ -11,7 +11,7 @@
   "creator": "claude",
   "assignee": "claude",
   "createdAt": "2026-06-12",
-  "completedAt": null,
+  "completedAt": "2026-06-12",
   "branch": null,
   "base_branch": null,
   "worktree_path": null,