feat(sbx,ft): share VirtualBox VMs — vbox launch grammar, picker & streaming transfer

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Unify sandbox summoning under `/sbx launch <docker|multipass|vbox>`, each
running on the invoker's own machine. For vbox:
- `/sbx launch vbox` opens an arrow-navigable VM picker (↑↓/Enter/Tab/Esc).
- `/sbx launch vbox [gui] <vm>` boots frictionlessly for a host that already
  has VirtualBox + the VM imported; a non-host appends `yes` to install
  VirtualBox, import the shared appliance, and/or free VT-x first.
- `/sbx gui <vm> [yes]` kept as an alias.

Add `vm_registered()` + `import_appliance()` (VBoxManage import) in sbx.rs.

Make file transfer stream disk-to-disk so multi-GB VM images can be shared
(the old 50 MB in-memory cap blocked them): `STREAM_MAX` = 16 GiB for `/send`
(`MAX_SIZE` now guards only the in-memory tar_path for sandbox injection).
`prepare_send` stat+stream-hashes off the UI thread; `Sink`/`commit` write
incoming chunks straight to a temp `.part` file and verify SHA before moving
into place. Wire frames (offer/accept/chunk/done, 64 KB, base64) unchanged.

A received `.ova`/`.ovf` auto-imports so the recipient can immediately
`/sbx launch vbox gui <vm>`.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

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This commit is contained in:

leetcrypt

2026-06-06 19:45:45 -07:00

parent 1fa8c332ed

commit 98e202e0fe

4 changed files with 821 additions and 402 deletions

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