Backlog: CLI commands with no dedicated tool

Standing list of Basecamp CLI capabilities reachable today only through basecamp_run. Kept as an issue so it survives outside CHANGELOG.md, where it has drifted once already (it still listed files versions / files replace as unwired after #4 landed them).

Not a commitment to build any of these. AGENTS.md's scope policy means each is an explicit decision.

• files uploads create — creating an upload; see #7
• cards wormholes list/create/update/delete — needed to discover valid to_wormhole targets for move_card, which already accepts one
• cards list --all-projects — account-wide Kanban listing, with its own assignee / due / unassigned filters
• todos list --all-projects, --due <with|without|overdue>, --unassigned, --no-due-date — account-wide server-side filters, currently approximated client-side
• reports schedule --start / --end — custom date window; get_schedule is fixed to "upcoming"
• comments list --all-projects, comments thread
• files list --all-projects --kind --person
• notifications bubbleups — list_notifications returns only bubble_ups_count, never the items
• top-level assign / unassign shortcuts (alias-shaped; see #6 before using them)

Also intentionally absent

delete_project is excluded by design — a destructive action deliberately kept out of the tool surface. Not a gap; do not add it.

Current as of CLI v0.9.1.

Start by reading AGENTS.md for the scope policy, then review the listed capabilities and referenced issues (#4, #6, and #7). The issue is a backlog rather than one defined change, so each command needs an explicit decision and its own scope; completion cannot be established for the list as a whole.