ci: gate showcase output in all five ports and regen stale output

CONTRIBUTING.md

@@ -83,7 +83,8 @@ a PR, so nothing red leaves your machine:
 ```bash
 scripts/ci-local.sh            # full parity: hygiene.yml's leak-scan, all-port
                                # conformance, the java reactor, the drift/mutation
-                               # gates, + integration-tests.yml's docker suite
+                               # gates, the showcase current in all five ports, +
+                               # integration-tests.yml's docker suite
 scripts/ci-local.sh --quick    # hygiene.yml in full + the TypeScript half of
                                # conformance.yml; skips the C#/Java/Kotlin/Python
                                # ports, the java reactor and the docker suite

examples/showcase/.metaobjects/.gen-state/.hashes.json

@@ -1,16 +1,16 @@
 {
   "generated/csharp/AppDbContext.g.cs": "314c6078030ba151687430b37e6b6ea936238bb5df02df238e4acce2f95a430d",
   "generated/csharp/Subscriber.g.cs": "3ca160941378fbb8b6ad6acf080ff85573f463931e21b8756873a4476e5dd163",
-  "generated/csharp/SubscriberBlurbPayload.g.cs": "6b1ce5b5a4018c647586d86125718c4764ae5d6eeb94e9545e8006a7ec2b2b6f",
+  "generated/csharp/SubscriberBlurbPayload.g.cs": "30ae31959c0cd98ba4ab12b2e827fa48f3bf59a05aa34974ebc4a1fe930378be",
   "generated/csharp/SubscriberFilterAllowlist.g.cs": "7428d47f6ccb64bb315266ee0564fa3803736623a34ab491435c042848c5d472",
   "generated/csharp/SubscriberNames.g.cs": "91f6eba78657b31fceef7021c6ca6bd799524dcb5120acbc8fcbe18786787174",
-  "generated/csharp/SubscriberRoutes.g.cs": "a14815f7870e309102d57a0227555191b3f32a4012e04fb213ef17abe12ab3f4",
+  "generated/csharp/SubscriberRoutes.g.cs": "e98387adf0d9fd5c2743409e5820d72400373ca6a758176cba76112fa1efc02a",
   "generated/python/Subscriber.py": "9dd4c0acea47f99d1daf79930f9de2e400f30780ebce6c63f023be528a72b762",
   "generated/python/SubscriberBlurbPayload.py": "a5ef8a08e63efbe0f73e39a21a368cff5150c68cc8beeea6e8aab0c755f8bbdd",
   "generated/python/__init__.py": "daa04cec586768866d0996c779f62073e6773fe63750ff668327991fac2fd0f5",
   "generated/python/subscriber_filter_allowlist.py": "b0414cc95ff3982c80a0e1a06839f090c0b423e41f5a94275df93426cea09df5",
   "generated/python/subscriber_names.py": "269637a02bf9b46f55658b58cb42f83196c03a877e1e2101337847fd406c1561",
-  "generated/python/subscriber_router.py": "734f9c91aa1ea475ac8014e9f5db47fe54c8f5e35a25d1ae64c1dc3276ad2546",
+  "generated/python/subscriber_router.py": "9c2393da6c055bd7a76b81cbc1492fccc44bae257cab5755830ab58f59f522c7",
   "generated/ts/Subscriber.queries.ts": "9f1a459c57fafc98bf074b4443b506d4a1e7023ed188f293021ae89c298d4562",
   "generated/ts/Subscriber.routes.ts": "147d32ae658f985e024c3de6e8894ca7359f767eeaa765cec70756802e3bd300",
   "generated/ts/Subscriber.ts": "a78c17f915222ee108290c28468313d77f77b5cff438f485324409302e389a96",

examples/showcase/generated/csharp/SubscriberBlurbPayload.g.cs

@@ -13,6 +13,7 @@ public class SubscriberBlurbPayload
 {
     public enum SubscriberBlurbPayloadStatus { active, paused, cancelled }
     [JsonPropertyName("name")]
+    [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingNull)]
     public string? Name { get; set; }
     [JsonPropertyName("status")]
     public SubscriberBlurbPayloadStatus Status { get; set; }

examples/showcase/generated/java/acme/SubscriberBlurbPayload.java

@@ -1,8 +1,10 @@
 package acme;
 
 import jakarta.validation.constraints.*;
+import com.fasterxml.jackson.annotation.JsonInclude;
 
 /** GENERATED — value object SubscriberBlurbPayload. Do not hand-edit; regenerated from metadata. */
+@JsonInclude(JsonInclude.Include.NON_NULL)
 public record SubscriberBlurbPayload(
     String name,
     @NotNull Status status

examples/showcase/generated/kotlin/acme/SubscriberBlurbPayload.kt

@@ -1,12 +1,14 @@
 package acme
 
+import com.fasterxml.jackson.`annotation`.JsonInclude
 import jakarta.validation.constraints.NotNull
 import kotlin.String
 import kotlin.jvm.JvmStatic
 
 /**
  * GENERATED — do not hand-edit. Regenerated from metadata.
  */
+@JsonInclude(JsonInclude.Include.NON_NULL)
 public data class SubscriberBlurbPayload(
   public val name: String? = null,
   @field:NotNull

examples/showcase/generated/python/subscriber_router.py

@@ -75,6 +75,9 @@ class _SortClause(BaseModel):
 _DECIMAL_LIMITS: dict[str, tuple[int, int]] = {}
 
 
+_NESTED_DECIMALS: dict[str, Any] = {}
+
+
 async def _json_body(request: Request) -> dict[str, Any] | None:
     """GENERATED — the request body as a JSON object (non-integer numbers are exact `Decimal`s), or None."""
     try:
@@ -182,7 +185,9 @@ def create_subscriber(
     ):  # the body was not a JSON object: the cross-port 400, not FastAPI's 422
         return JSONResponse(status_code=400, content={"error": "validation"})
     try:
-        dto = coerce_decimal_fields(dto, _DECIMAL_FIELDS, _DECIMAL_LIMITS)
+        dto = coerce_decimal_fields(
+            dto, _DECIMAL_FIELDS, _DECIMAL_LIMITS, _NESTED_DECIMALS
+        )
     except ValueError:
         return JSONResponse(status_code=400, content={"error": "validation"})
     # FR-036: run the generated field constraints (length / pattern /
@@ -215,7 +220,9 @@ def update_subscriber(
     ):  # the body was not a JSON object: the cross-port 400, not FastAPI's 422
         return JSONResponse(status_code=400, content={"error": "validation"})
     try:
-        dto = coerce_decimal_fields(dto, _DECIMAL_FIELDS, _DECIMAL_LIMITS)
+        dto = coerce_decimal_fields(
+            dto, _DECIMAL_FIELDS, _DECIMAL_LIMITS, _NESTED_DECIMALS
+        )
     except ValueError:
         return JSONResponse(status_code=400, content={"error": "validation"})
     # FR-035 PATCH-2: an explicit null on a @required field is a 400 —

scripts/ci-local.sh

@@ -399,10 +399,22 @@ gate_no_api_prefix() { bun scripts/check-no-api-prefix.ts; }
 #
 # Deliberately does NOT run the other four ports: that shells out to mvn/dotnet/uv,
 # and this lane is `step_if bun` — guarded on bun alone and included in `--quick`, the
-# documented pre-PR command. The release preflight runs `--check --all-ports`, which
-# refuses to leave a port out.
+# documented pre-PR command. The other four ports are checked by `gate_showcase_all_ports`
+# in the heavy tier of the flagless run, and again by the release preflight
+# (`--check --all-ports`); both refuse to leave a port out.
 gate_site_payload() { bun_install && bun test scripts/site && bun scripts/build-site-payload.ts --check; }
 
+# ── the showcase is current in EVERY port, not just ts+sql ────────────────────
+# `gate_site_payload` can only afford `--bun-only`, so a change to the python, csharp,
+# java or kotlin emitter left the committed showcase stale while the full run stayed
+# green, and the first thing to notice was the release preflight (`--check --all-ports`)
+# refusing the release cut (#447/#448 value-object null omission). No single CI lane has
+# mvn, dotnet and uv together, so this runs in the flagless full run only, which is the
+# one place all three coexist; it is absent from `--quick` (bun-only by design) and from
+# every `--only` lane. It needs the workspace built (`gate_ts_build_typecheck` earlier in
+# the same run) for the reason given above `gate_site_payload`.
+gate_showcase_all_ports() { bun_install && bun scripts/regen-showcase.ts --check --all-ports; }
+
 # ── the published metamodel reference tracks the registry ─────────────────────
 # site-reference/ is rendered HTML the site COPIES at deploy — the deploy has no install
 # step for this repo, so the rendering happens here and the release tag carries the pages.
@@ -924,6 +936,18 @@ else
   if want python;               then step_if uv "conformance: python"            gate_conf_python;  fi
   if want_any java java-fast;   then step_if mvn "conformance: kotlin"           gate_conf_kotlin;  fi
   if want_any java java-slow;   then step_if mvn "java-reactor (install)"        gate_java_reactor; fi
+  # Needs all three toolchains at once, which no single --only lane has: flagless run only.
+  if [ -z "$ONLY" ] && [ "$INTEG_ONLY" -eq 0 ]; then
+    if have mvn && have dotnet && have uv; then
+      step "showcase current in all ports" gate_showcase_all_ports
+    elif [ "$STRICT" -eq 1 ]; then
+      echo ""; echo "  ✖ showcase current in all ports — needs mvn, dotnet and uv (strict-toolchains)" >&2
+      FAIL+=("showcase current in all ports (missing toolchain, strict)")
+    else
+      echo ""; echo "── ⊘ showcase current in all ports — SKIPPED (needs mvn, dotnet and uv) ──" >&2
+      SKIP+=("showcase current in all ports (needs mvn+dotnet+uv)")
+    fi
+  fi
   # Docker integration — full suite when no --only, per-port otherwise.
   # --no-integration drops this whole half; --integration-only keeps ONLY it, which is
   # why it asks in_lane / in_lane_any (selection) where the checks above ask want.