feat(jtk): port issue move command

[rianjs]

Port the issue move functionality from jira-ticket-cli PR #62 + #64.

Files to create:

• tools/jtk/api/move.go - API client for bulk move endpoints
• tools/jtk/internal/cmd/issues/move.go - jtk issues move and jtk issues move-status commands

Features:

• jtk issues move <issue-key>... --to-project <project>
• jtk issues move-status <task-id>
• Uses Jira Cloud bulk move API
• Key format: PROJECT,TYPE_ID (comma-separated)
• Async operation with polling (--wait default, --no-wait option)
• --notify flag, --to-type flag
• Max 1000 issues per request

Source: open-cli-collective/jira-ticket-cli#62, open-cli-collective/jira-ticket-cli#64

[rianjs]

Implementation Plan

API Layer (tools/jtk/api/move.go)

• Add request/response types: MoveIssuesRequest, MoveIssuesSourceSpec, StatusMapping, MoveIssuesResponse, MoveTaskStatus, MoveTaskResult, MoveFailedIssue
• Add ProjectStatus type for status listing
• Implement methods: MoveIssues, GetMoveTaskStatus, GetProjectIssueTypes, GetProjectStatuses
• Add BuildMoveRequest helper with comma-separated key format (PROJECT,TYPE_ID)

Command Layer (tools/jtk/internal/cmd/issues/move.go)

• jtk issues move <issue-key>... --to-project <project> - Move issues to another project
  • --to-type - Target issue type (default: match source type)
  • --notify - Send notifications (default: true)
  • --wait - Wait for completion (default: true)
• jtk issues move-status <task-id> - Check async task status

Tests (tools/jtk/api/move_test.go)

• Test BuildMoveRequest key format
• Test GetMoveTaskStatus with empty ID
• Test GetProjectIssueTypes with empty project key
• Test GetProjectStatuses with empty project key