chore(cli): evaluate self_update migration for number_prefix warning

[xodapi]

Parent: #189

Context

RustSec audit on 2026-07-06 found number_prefix 0.4.0 through self_update 0.41.0 -> indicatif 0.17.11. self_update 1.0.0-rc.2 exists but is a pre-release major change.

Scope

• Evaluate migration from self_update 0.41 to a stable/acceptable newer update path.
• Preserve checksum/signature behavior added for release updates.
• Do not change GUI/TUI/Android behavior beyond update plumbing.

Acceptance Criteria

• number_prefix warning is removed or a clear decision is documented if waiting for stable self_update 1.x.
• Existing update tests pass and checksum verification remains covered.
• cargo test --locked, cargo clippy --all-targets -- -D warnings, and cargo fmt --check pass.

[xodapi]

⏸️ Проект временно заморожен оркестратором. Не брать агентам до явного возобновления работ.