feat(code-runtime-python): add the fd-3 frame protocol
Introduce @deepseek-ai/dsh-code-runtime-python with the versionless
JSON-lines protocol between the Node host and the CPython subprocess:
the host-side hostile-frame codec (validateChildFrame, encodeJsonPlain,
checkDoneValue, hasUnsafeIntegerToken, hasNonLosslessNumber,
logTruncationMarker) and the Python-side wire-vocabulary mirror
(py/protocol.py).
This is the protocol layer of the code-runtime-python stack, split from
#436 and based on the multi-language seam extension. The PythonCodeRuntime
implementation and its Python JSON codec land in the backend-core PR on
top of this branch.
Ship the minimal buildable package skeleton (package.json, tsconfig,
tsdown, barrel index, invariant companion, bilingual README) because the
workspace-constraint, coverage, and invariant-topology gates require the
package to exist and build the moment its directory does; the backend-core
PR extends those files rather than creating them.
Align py/protocol.py with src/protocol.ts (the round-12 review of #436
found LogMessage.truncated, DoneMessage.error.kind, and Namespace.errorClass
stale) and guard the two runtime-executed surfaces (PROTOCOL_FD and the log
truncation marker) with a real-python3 cross-language mirror e2e test.
2026-07-31 18:51:03 +08:00
|
|
|
# Bilingual-pair consistency record (docs/i18n/README.md): the git blob hash of each
|
|
|
|
|
# side as of the last confirmed-consistent state. Both languages carry equal authority;
|
|
|
|
|
# after editing either side, bring the other along and re-record with:
|
|
|
|
|
# pnpm run verify-translation-pairing --write packages/code-runtime/code-runtime-python/README.md
|
2026-08-02 17:01:56 +08:00
|
|
|
README.md: 62e899941ac8eadb2046b1bffae0a3c9c6e14308
|
|
|
|
|
README.zh.md: 5a7aa880830bccc4ebd647d7b009ec7e4f0d6307
|