internal: Rework process handling.

[milesj]

No description provided.

[github-actions]

Run report for 4db8b453 (ubuntu-latest, 22)

Total time: 3m 30s | Comparison time: 5m 12s | Estimated savings: 1m 41s (32.6% faster)

	Action	Time	Status	Info
🟩	SyncWorkspace	29.5ms	Passed
🟩	SetupToolchain(node:~22)	24.7s	Passed
🟩	SyncProject(node, signals)	3.9ms	Passed
🟩	SyncProject(node, runtime)	5.2ms	Passed
🟩	SyncProject(node, visualizer)	3.7ms	Passed
🟩	SyncProject(node, types)	3.6ms	Passed
🟩	SyncProject(node, website)	8ms	Passed
🟩	SyncProject(node, nx-compat)	8.6ms	Passed
🟩	SyncProject(node, report)	9ms	Passed
🟩	InstallWorkspaceDeps(node:~22)	44.2s	Passed
🟥	RunTask(signals:typecheck)	731.1ms	Failed
🟩	RunTask(visualizer:test)	1.4s	Passed
🟩	RunTask(types:format)	1.5s	Passed
🟩	RunTask(signals:lint)	3.5s	Passed
🟥	RunTask(signals:build)	2.9s	Failed
🟥	RunTask(signals:test)	2.3s	Failed
🟩	RunTask(signals:format)	726.5ms	Passed
🟩	RunTask(visualizer:lint)	11.6s	Passed
🟩	RunTask(types:lint)	11s	Passed
🟩	RunTask(visualizer:format)	1.5s	Passed
	And 25 more...

Expanded report

	Action	Time	Status	Info
🟩	RunTask(visualizer:build)	12.3s	Passed
🟩	RunTask(types:test)	1.4s	Passed
🟩	RunTask(visualizer:typecheck)	4.2s	Passed
🟩	RunTask(types:typecheck)	3.9s	Passed
🟩	RunTask(types:build)	3.9s	Passed
🟩	RunTask(nx-compat:test)	1.4s	Passed
🟩	RunTask(report:typecheck)	4.9s	Passed
🟩	RunTask(runtime:build)	7.2s	Passed
🟩	RunTask(nx-compat:build)	7.7s	Passed
🟩	RunTask(report:format)	1.7s	Passed
🟩	RunTask(runtime:typecheck)	4.2s	Passed
🟩	RunTask(nx-compat:format)	1.5s	Passed
🟩	RunTask(report:lint)	11.4s	Passed
🟩	RunTask(runtime:test)	1.4s	Passed
🟩	RunTask(runtime:format)	942.7ms	Passed
🟩	RunTask(report:build)	7.2s	Passed
🟩	RunTask(report:test)	3.2s	Passed
🟩	RunTask(nx-compat:typecheck)	5.4s	Passed
🟩	RunTask(nx-compat:lint)	12s	Passed
🟩	RunTask(runtime:lint)	10.9s	Passed
🟩	RunTask(website:typecheck)	10.7s	Passed
🟩	RunTask(website:test)	1.5s	Passed
🟩	RunTask(website:lint)	17.7s	Passed
🟩	RunTask(website:format)	12.6s	Passed
🟩	RunTask(website:build)	1m 39s	Passed

Environment

OS: Linux
Matrix:

os = ubuntu-latest
node-version = 22

Touched files

.moon/workspace.yml
CHANGELOG.md
Cargo.lock
crates/action-pipeline/Cargo.toml
crates/action-pipeline/src/action_pipeline.rs
crates/action-pipeline/src/event_emitter.rs
crates/action-pipeline/src/job.rs
crates/action-pipeline/src/subscribers/console_subscriber.rs
crates/action-pipeline/src/subscribers/reports_subscriber.rs
crates/action/src/action.rs
crates/actions/src/operations/run_plugin_operation.rs
crates/app/Cargo.toml
crates/app/src/commands/node/run_script.rs
crates/app/src/session.rs
crates/codegen/src/codegen.rs
crates/console-reporter/src/default_reporter.rs
crates/console/src/reporter.rs
crates/process/Cargo.toml
crates/process/src/async_command.rs
crates/process/src/command.rs
crates/process/src/command_inspector.rs
crates/process/src/command_line.rs
crates/process/src/exec_command.rs
crates/process/src/lib.rs
crates/process/src/output_stream.rs
crates/process/src/process_registry.rs
crates/process/src/shared_child.rs
crates/process/src/shell.rs
crates/process/src/signal.rs
crates/task-expander/tests/task_expander_test.rs
crates/task-runner/src/command_executor.rs
crates/task-runner/tests/command_builder_test.rs
crates/vcs/src/process_cache.rs
legacy/bun/tool/src/bun_tool.rs
legacy/deno/platform/src/deno_platform.rs
legacy/deno/tool/src/deno_tool.rs
legacy/node/tool/src/bun_tool.rs
legacy/node/tool/src/node_tool.rs
legacy/node/tool/src/npm_tool.rs
legacy/node/tool/src/pnpm_tool.rs
legacy/node/tool/src/yarn_tool.rs
legacy/python/tool/src/python_tool.rs
legacy/rust/tool/src/rust_tool.rs
package.json
scenarios/signals/moon.yml
scenarios/signals/signals.mjs
tsconfig.json