ci: pin Evolith Core machine contracts

Author: beyondnetPeru

.github/workflows/evolith-contract-conformance.yml

@@ -0,0 +1,31 @@
+name: Evolith Contract Conformance
+
+on:
+  push:
+    branches: [main]
+    paths:
+      - "contracts/**"
+      - ".github/workflows/evolith-contract-conformance.yml"
+  pull_request:
+    branches: [main]
+
+permissions:
+  contents: read
+
+jobs:
+  conform:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout Tracker
+        uses: actions/checkout@v4
+        with:
+          path: tracker
+
+      - name: Checkout Evolith Core
+        uses: actions/checkout@v4
+        with:
+          repository: beyondnetcode/evolith_arch32
+          path: core
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v4

contracts/evolith-core-contracts.json

@@ -0,0 +1,21 @@
+{
+  "provider": "beyondnetcode/evolith_arch32",
+  "contractVersion": "1.0.0",
+  "compatibilityPolicy": "semver-major",
+  "schemas": [
+    {
+      "id": "gate-evidence",
+      "version": "1.0.0",
+      "sha256": "9225090e2ee851dbd2d5c22e7a0a6e2d7f97db9835f7f3822ac7d9f861b75754"
+    },
+    {
+      "id": "output-envelope",
+      "version": "1.0.0",
+      "sha256": "83a426d58ed87285296a82f40848bfe7336d07642493b44a4736a64b32d367b3"
+    }
+  ],
+  "consumer": {
+    "repository": "beyondnetcode/evolith_tracker",
+    "role": "authoritative SDLC evidence consumer"
+  }
+}