[dmealing]

What Changed

• Regenerates the stale examples/showcase output in four ports after the value-object null-omission and nested-decimal changes: SubscriberBlurbPayload.g.cs (C#, [JsonIgnore(WhenWritingNull)] on Name), SubscriberBlurbPayload.java (@JsonInclude(NON_NULL)), SubscriberBlurbPayload.kt (same annotation), and subscriber_router.py (_NESTED_DECIMALS plus the extra argument to coerce_decimal_fields). .hashes.json is updated to match.
• Adds gate_showcase_all_ports to scripts/ci-local.sh, which runs regen-showcase --check --all-ports. It runs only in the flagless full run, where mvn, dotnet and uv are all present, and it fails under strict toolchains when any of them is missing. --quick and --only lanes are unchanged.
• Updates the full-run description in CONTRIBUTING.md to list the new showcase gate.

Validation

Risk Assessment

✅ Low: The change regenerates four stale showcase outputs and their .hashes.json entries, all matching current emitter source, and adds a flagless-run-only gate in scripts/ci-local.sh that follows the existing step, skip and strict-toolchain patterns.

Testing

Drove the real showcase regen gate across all five ports; it passes on this commit, and it catches a hand-edited generated file. The full release preflight could not run because this worktree is on detached HEAD and the script requires main; the showcase step it runs is the same command I ran, so that step is covered. Related showcase tests pass. I did not run the complete repo regression suite (docker integration and the full mvn/dotnet lanes are heavy); the baseline ci-local ts-fast/ts-unit lane was already green. Worktree left clean.

• Live validation: ✅ go - 3 of 4 scenarios driven live against the product

Scenario	Result	Live	Evidence
Preflight showcase check passes across all ports after regen	✅ pass	live	bun scripts/regen-showcase.ts --check --all-ports (exit 0, all five ports fresh)
Stale generated output is rejected by the gate (adversarial)	✅ pass	live	Tampered csharp/SubscriberBlurbPayload.g.cs; check exited 1 naming the file; restored clean
Full CI run includes the all-ports showcase gate	✅ pass	live	MO_CI_LIST_ONLY=1 scripts/ci-local.sh lists 'showcase current in all ports'
Release preflight 1.1.0 passes end to end	⏸️ untested	no	Refused at the branch check: must be on main (worktree is detached HEAD). Running it on a renamed or created main was not done because that would bypass the guard. Needs a run from a checkout on main,…

Pipeline

Updates from git push no-mistakes

✅ **Intent** - passed

✅ No issues found.

✅ **Rebase** - passed

✅ No issues found.

✅ **Review** - passed

✅ No issues found.

✅ **Test** - passed

✅ No issues found.

• Live validation: ✅ go - 3 of 4 scenarios driven live against the product

Scenario	Result	Live	Evidence
Preflight showcase check passes across all ports after regen	✅ pass	live	bun scripts/regen-showcase.ts --check --all-ports (exit 0, all five ports fresh)
Stale generated output is rejected by the gate (adversarial)	✅ pass	live	Tampered csharp/SubscriberBlurbPayload.g.cs; check exited 1 naming the file; restored clean
Full CI run includes the all-ports showcase gate	✅ pass	live	MO_CI_LIST_ONLY=1 scripts/ci-local.sh lists 'showcase current in all ports'
Release preflight 1.1.0 passes end to end	⏸️ untested	no	Refused at the branch check: must be on main (worktree is detached HEAD). Running it on a renamed or created main was not done because that would bypass the guard. Needs a run from a checkout on main,…

• scripts/ci-local.sh --only ts-fast --only ts-unit --strict-toolchains
• bun run --filter '*' build (prerequisite per regen-showcase header)
• bun scripts/regen-showcase.ts --check --all-ports -> all five ports ok, exit 0
• Adversarial: appended a line to examples/showcase/generated/csharp/SubscriberBlurbPayload.g.cs, re-ran --check --all-ports -> exit 1, names the file as differing from pristine regen; restored file, tree clean
• MO_CI_LIST_ONLY=1 scripts/ci-local.sh -> lists 'showcase current in all ports' in flagless run
• bun run scripts/release.mjs 1.1.0 --preflight-only -> refused: must be on main (detached HEAD); not bypassed
• bun test scripts/site -> 168 pass, 0 fail
• bun test packages/cli/test/integration/showcase-drift.test.ts -> 3 pass, 0 fail

✅ **Document** - passed

✅ No issues found.

✅ **Lint** - passed

✅ No issues found.

✅ **Push** - passed

✅ No issues found.