- Switch build profile to `panic = "unwind"` to allow catching panics in vendored uutils code.
- Add `run_caught` to wrap utility execution in `catch_unwind`, converting panics into non-zero exit codes.
- Update `pi-natives` to distinguish between recoverable utility panics and fatal process crashes, preventing recovered panics from appearing in user-facing crash reports.
- Implement an argv-independent `format_usage` within `pi-uutils-ctx`.
- Update all vendor crates to import the function from the new location.
Fixes#3727
- Implemented `rg` shell builtin using ripgrep libraries to enable file and directory searching.
- Added `RgSink` to handle output formatting, context, and vimgrep compatibility.
- Updated shell context and IO flags to support stdin as search input.
- Added integration tests for directory recursion, ignore filtering, and stdin handling.
- Introduced `pi-uutils-ctx` to manage thread-local I/O redirection, environment context, and path resolution for in-process utilities.
- Integrated a suite of vendored coreutils (cat, find, grep, head, ls, mkdir, mv, rm, sort, tail, uniq, wc) as shell builtins.
- Added infrastructure for command cancellation, streaming I/O, and locale-aware error reporting within the shell environment.
- Configured shell-side dispatch logic to route commands through the new utility context, enhancing performance and binary integration.
can1357