* feat: add sdk subcommand to run conformance against any SDK ref (#250)
* Revise sdk runner: explicit --mode, KNOWN_SDKS-only config, v1/v2 entries
Addresses review feedback on the sdk subcommand:
- Require --mode (client|server) and remove "both". Each invocation now
tests exactly one side with its own exit code; the old default ran
client then server but combined exit codes with ||=, which skipped the
server side entirely whenever the client run failed.
- Resolve build/run config from KNOWN_SDKS + CLI flags only; drop the
conformance.config.yaml loader (no SDK ships one yet). The Zod schema
stays as the type for the built-in entries.
- Split the typescript entry by major version: typescript-sdk (v2/main,
pnpm install + build:all, expected-failures.yaml) and typescript-sdk-v1
(v1.x, npm ci + build, conformance-baseline.yml). An entry may set
`repo` (real clone target for an alias) and `defaultRef` (branch used
when no @ref is given). parseSdkSpec now leaves ref undefined when
omitted so defaultRef can apply; a trailing @ is treated as no ref.
- Key the clone cache by ref (<repo>/<ref>) so different refs of the same
repo no longer share one checkout.
- Bound the server readiness probe with a per-request AbortSignal timeout
so a server that accepts the socket but never responds can't hang past
the overall deadline.
* fix(sdk-runner): resolve -o to absolute path; add --expected-failures override; replaceAll for safeName
