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refactor(runtime): collapse speculative portability layers

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Remove the one-consumer bounded-read primitive and shared terminal lifecycle controller, make terminal cleanup one awaited provider operation, and reuse one Code Runtime contract suite. Keep only reproduced cancellation and policy fixes; defer unproven replacement, prompt-attribution, and streaming-frame concerns to scoped markers.
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Tianyi Cui
2026-07-29 18:26:21 +08:00
parent 4fecc54998
commit c1d550de58
65 changed files with 1265 additions and 948 deletions
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docs/core-data-structures/subprocess.md
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@@ -240,9 +240,9 @@ interface SubprocessOutcome {
## Terminal-process primitive
`spawnTerminal(spec)` is the non-pipe process primitive. The provider allocates the controlling terminal and owns raw UTF-8 byte transport, foreground-process-group inspection and signalling, TERM-to-KILL cleanup, and whole-session quiescence. The PTY backend remains responsible for prompt detection, readiness inference, scrollback, sandbox policy, and persistent-session ownership; ordinary `spawn()` cannot reconstruct controlling-terminal semantics.
`spawnTerminal(spec)` is the non-pipe process primitive. The provider allocates the controlling terminal and owns UTF-8 text transport, foreground-process-group inspection and signalling, and one awaited TERM-to-KILL operation that reaches whole-session quiescence. The PTY backend remains responsible for prompt detection, readiness inference, scrollback, sandbox policy, and persistent-session ownership; ordinary `spawn()` cannot reconstruct controlling-terminal semantics.
The terminal spec fully specifies argv, cwd, environment overrides, dimensions, cleanup grace, and optional cancellation. Its handle exposes `pid`, ordered output, `done`, `write`, `inspectForeground`, `signalForeground`, `terminate`, and `waitForExit`; the exact public shapes are generated into the [`ctx.subprocess` service catalog](../cordis-catalog/services.md#ctxsubprocess--subprocessservice-abstract-seam).
The terminal spec fully specifies argv, cwd, environment overrides, dimensions, cleanup grace, and optional allocation cancellation. Its handle exposes `pid`, ordered output, `done`, `write`, `inspectForeground`, `signalForeground`, and awaited `terminate`; the exact public shapes are generated into the [`ctx.subprocess` service catalog](../cordis-catalog/services.md#ctxsubprocess--subprocessservice-abstract-seam).
## Service behavior