watchlisted

Manage Jira watchers using `jirac`. Steps: 1. Check that `jirac` is available by running `jirac --version`. If it is missing, tell the user to install it with `cargo install jira-commands`. 2. Determine whether the user wants to add a watcher, list watchers, or remove a watcher. For adding the current user as a watcher: - extract the issue key - run `jirac issue watch <ISSUE-KEY> add` For adding a specific user as a watcher: - extract the issue key - extract the target user's Atlassian accountId - run `jirac issue watch <ISSUE-KEY> add --account-id <ACCOUNT-ID>` For listing watchers: - extract the issue key - run `jirac issue watch <ISSUE-KEY> list` For removing a watcher: - extract the issue key - extract the target user's Atlassian accountId - run `jirac issue watch <ISSUE-KEY> rm <ACCOUNT-ID>` - the command prompts for confirmation; pass `--force` to skip the prompt when the operator already confirmed