Refactor: Share VersionSelector across wizards

[FL4TLiN3]

Description

The VersionSelector component is duplicated across wizard apps with nearly identical implementation. It should be extracted to a shared component.

Current State

Same component (~50 lines each) defined in:

• Status wizard
• Tag wizard
• Unpublish wizard

Expected State

Single shared component imported where needed.

Dependencies

Should be done after:

• Refactor: Consolidate wizard type definitions #24 (type consolidation)
• Refactor: Extract status color utility #25 (status color utility)

Acceptance Criteria

• Shared VersionSelector component created
• All wizard apps use the shared component
• No duplicate implementations remain