Create a custom Daytona snapshot (prebuilt sandbox image) and launch sandboxes from it

Documented steps

1. Write a Dockerfile for the environment your agents need, or identify an existing image to publish as a snapshot.
2. When building locally on Apple Silicon or other non-AMD64 hardware, build for AMD64: `docker build --platform=linux/amd64 -t custom-alpine:3.21 .`
3. Create the snapshot from the Dockerfile with the CLI: `daytona snapshot create my-awesome-snapshot --dockerfile ./Dockerfile`.
4. Alternatively push an already-built local image: `daytona snapshot push custom-alpine:3.21 --name alpine-minimal`.
5. Or create it programmatically from an SDK Image object: `daytona.snapshot.create(CreateSnapshotParams(name='snapshot_name', image=image), on_logs=print)`, optionally passing `Resources(cpu=..., memory=..., disk=..., gpu=...)` to set the default sizing sandboxes inherit.
6. Poll status with `daytona snapshot list` or `daytona.snapshot.get('snapshot-name')`.
7. Wait for the snapshot to move through Pending, Building and Pulling to Active; Error and Build Failed are terminal and require inspecting build logs and recreating.
8. Reactivate an Inactive snapshot with `daytona.snapshot.activate('snapshot-name')` before using it.
9. Launch sandboxes from it: Python `daytona.create(CreateSandboxFromSnapshotParams(snapshot='snapshot_name'))`; TypeScript `await daytona.create({ snapshot: 'snapshot_name' })`.
10. Delete snapshots you no longer need to keep the organization's snapshot list manageable. Official docs: https://www.daytona.io/docs/en/snapshots, https://www.daytona.io/docs/en/warm-pools