Support migration sources beyond v1 in `profile migrate`

[mohabbis]

flipdeck profile migrate currently only supports --from=v1 (see desktop_helper/README.md). If/when a v3 profile schema is introduced, add a corresponding --from=v2 (or later) migration path; otherwise this can be closed as not-planned once confirmed v1→v2 is the only migration ever needed.

Sub-project: desktop_helper
Source: desktop_helper/README.md (known limitation)

[mohabbis]

Triage

• Priority: Low
• Duplicate check: None found.

Not yet actionable — the issue itself notes this should be closed as not-planned unless a v3 profile schema is confirmed needed. Flagging for a maintainer decision rather than active backlog work.

Automated triage based on docs/ROADMAP.md phase and current implementation status.

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Generated by Claude Code

[mohabbis]

Triage

• Priority: Low
• Duplicate check: None found.

Not yet actionable — the issue itself notes this should be closed as not-planned unless a v3 profile schema is confirmed needed. Flagging for a maintainer decision rather than active backlog work.

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Generated by Claude Code