refactor: generate CI workflow from gate contracts

scripts/check-test-evidence.ts

@@ -13,6 +13,7 @@ import {
   type HttpScenarioReceipt,
 } from "./lib/http-scenario-evidence.ts";
 import { writeValidatedJsonArtifact } from "./lib/validated-json-artifact.ts";
+import { testEvidenceReportSchema } from "./lib/test-evidence-artifact.ts";
 
 const scenarioContributionSchema = z
   .object({
@@ -40,24 +41,6 @@ const policySchema = z
   })
   .strict();
 
-const reportSchema = z
-  .object({
-    schemaVersion: z.literal(2),
-    sourceRoot: z.string().min(1),
-    status: z.enum(["PASS", "FAIL"]),
-    facts: z
-      .object({
-        scannedFiles: z.number().int().nonnegative(),
-        visualBaselines: z.number().int().nonnegative(),
-        sharedScenarios: z.number().int().nonnegative(),
-        declaredScenarioExecutions: z.number().int().nonnegative(),
-        executedScenarioExecutions: z.number().int().nonnegative(),
-      })
-      .strict(),
-    failures: z.array(z.string()),
-  })
-  .strict();
-
 function argumentValue(name: string, fallback: string): string {
   const index = process.argv.indexOf(name);
   return index >= 0 && process.argv[index + 1]
@@ -455,7 +438,7 @@ const report = {
 await mkdir(path.dirname(artifactPath), { recursive: true });
 await writeValidatedJsonArtifact({
   path: artifactPath,
-  schema: reportSchema,
+  schema: testEvidenceReportSchema,
   value: report,
 });
 if (failures.length > 0) {