Add command to list workflow states for a team

[schpet]

Problem

When using linear issue update --state, there's no way to discover valid workflow state names for a team without resorting to a raw GraphQL query:

linear api '{ team(id: "XX") { states { nodes { name type position } } } }'

This makes it hard to use --state correctly, especially since state names vary across teams and workspaces. Failed attempts just show Workflow state not found: 'X' for team XX with no guidance on valid options.

Proposed Solution

Add a team states (or team workflows) subcommand:

linear team states [teamKey]

Output could look something like:

Name                  Type
Backlog               backlog
Ready                 unstarted
In Progress           started
Done                  completed
Canceled              canceled

Alternatives Considered

• The GraphQL API works but is cumbersome for a common need
• Tab completion could help but doesn't cover all use cases (e.g. scripting, unfamiliar workspaces)

[schpet]

maybe if you enter in a bad state, the error message can include a list of the valid states. unclear if that fits in nicely or not.