Start Core Hub FastAPI replacement foundation

contracts/fixtures/api-v2/protected/unauthorized.json

@@ -0,0 +1,6 @@
+{
+  "detail": {
+    "code": "unauthorized",
+    "message": "Missing bearer token"
+  }
+}

contracts/fixtures/api-v2/public/hub-capability-manifests.json

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+[
+  {
+    "hub_slug": "core-hub",
+    "manifest_version": "0.1.0",
+    "capabilities": [
+      "capability.infotech.core-hub",
+      "api.v2.compatibility",
+      "contract.ir"
+    ],
+    "endpoints": [
+      {"rel": "hubs", "href": "/api/v2/hubs"},
+      {"rel": "events", "href": "/api/v2/interaction-events"},
+      {"rel": "widgets", "href": "/api/v2/widgets"}
+    ]
+  }
+]

contracts/fixtures/api-v2/public/hubs.json

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+[
+  {
+    "slug": "core-hub",
+    "name": "Core Hub",
+    "status": "active",
+    "description": "Third-generation production interaction framework.",
+    "capabilities": [
+      "hub-registry",
+      "interaction-events",
+      "workplan-coordination",
+      "operator-console"
+    ],
+    "links": [
+      {"rel": "self", "href": "/api/v2/hubs/core-hub"}
+    ]
+  }
+]