attachlisted

Upload a file attachment to a Jira issue 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. Extract from the user's request: - issue key, for example `PROJ-123` - file path 3. If the issue key or file path is missing, ask for it. 4. Verify the file exists before running the command. 5. Run `jirac issue attach <ISSUE-KEY> <FILE-PATH>`. 6. Confirm the upload result clearly. Examples: - "attach screenshot.png to PROJ-123" → `jirac issue attach PROJ-123 ./screenshot.png` - "upload error.log to PROJ-456" → `jirac issue attach PROJ-456 ./error.log`