* feat: add client-side JSON Schema 2020-12 preservation scenario
The mock server, using the version-aware `MockServer` abstraction from #321,
first advertises a focal tool with a detailed inputSchema and also offers a
permissive `json_schema_echo` tool. The client under test retrieves the
inputSchema via `tools/list`, then sends the same inputSchema back to the server
using the echo tool, completing the round-trip.
The scenario diffs from the echoed schema against the canonical fixture. It
emits eight per-keyword conformance checks. SEP-2106 vocabulary checks are
soft-gated using the existing sep2106KeywordCheckStatus helper. They only flip
to FAILURE during DRAFT-2026-v1 runs.
Signed-off-by: Satoshi Ito <satoshi.ito.tf@hitachi.com>
* Drive draft-target preservation tests through the stateless lifecycle
The stateful test helper passed createServerStateful bare, which no longer
compiles now that it takes a second specVersion argument, and forcing the
stateful mock at the draft version trips wire-schema validation (draft
results require the SEP-2549 resultType/ttlMs/cacheScope members). Use
testScenarioContext(DRAFT_PROTOCOL_VERSION), which selects the stateless
mock server, and drive it with sendStatelessRequest, matching the pattern
in json-schema-ref-deref.test.ts.
* Reword client keyword-preservation rows as issue-derived expectations
SEP-2106 §1 contains no normative preservation sentence, so the six new
sep-2106.yaml rows should not attribute a spec MUST to it. Reword the
remaining rows as expectations derived from issue #101. Also drop the
three rows whose check IDs are not sep-prefixed: the traceability
manifest only collects IDs matching /^sep-\d+-/, so those rows could
never be marked tested.
* Replace stale DRAFT-2026-v1 references with the 2026-07-28 draft name
The draft protocol identifier was renamed in #331. Interpolate
DRAFT_PROTOCOL_VERSION into the SKIPPED errorMessage suffix (matching
the server-side scenario) and update the header comment.
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Signed-off-by: Satoshi Ito <satoshi.ito.tf@hitachi.com>
Co-authored-by: Paul Carleton <paulc@anthropic.com>
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