fix(rm): delete versions with explicit version IDs

[overtrue]

Related issues

Refs rustfs/rustfs#5104.
Refs rustfs/backlog#1405.
Blocked full bucket cleanup dependency: rustfs/backlog#1384.

Background

The initial removal-flag implementation made rm --versions and rb --force rely on the RustFS-specific x-rustfs-force-delete header. That collapses all versions of a key into one opaque server operation, loses per-version results, and cannot provide the staged discovery and failure guarantees required by backlog #1405.

Changes

• Preserve each object key and version ID as a distinct delete target.
• Send standard S3 DeleteObjects requests with explicit VersionId values for versions and delete markers.
• Recognize DeleteMarkerVersionId in delete results so delete-marker cleanup is tracked correctly.
• Fail closed on duplicate version targets or non-advancing pagination before mutation.
• Stop a versioned delete when a batch is incomplete instead of silently treating the key as deleted.
• Keep the RustFS force-delete header limited to the existing explicit --purge option.
• Hide and reject rb --force and rb --dangerous before alias or network resolution until safe bucket-wide multipart discovery is available.

Scope

This PR does not claim to complete rb --force. The full staged workflow remains tracked by rustfs/backlog#1405 and is blocked by rustfs/backlog#1384. The existing explicit rm --purge behavior remains unchanged.

Validation

• cargo fmt --all --check
• cargo clippy --workspace -- -D warnings
• cargo test --workspace

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