Fix streaming cache robustness

Summary

• split once-core lib.rs into focused action, error, runner, execute, local, output, stream, and remote modules
• move Daytona under remote/daytona.rs and Microsandbox under remote/microsandbox.rs
• simplify Daytona shell command construction with a small single-quote helper and focused tests
• stream live execution output through bounded pipes into the CAS instead of buffering full stdout and stderr
• require Daytona execution responses to include an exit code before treating them as action results
• treat Tuist remote action results whose referenced blobs cannot be materialized as cache misses

Validation

• mise exec – cargo fmt –all – –check
• mise exec – cargo test -p once-core
• mise exec – cargo test –workspace
• mise exec – cargo clippy –workspace –all-targets – -D warnings
• mise exec – cargo build –release
• mise exec – shellspec

No GitHub comments yet.