feat(authority): detect BME manifest capability

tests/authority-bme-capabilities.mjs

@@ -0,0 +1,43 @@
+import assert from "node:assert/strict";
+
+import {
+  normalizeAuthorityProbeResponse,
+  normalizeAuthorityCapabilityState,
+} from "../runtime/authority-capabilities.js";
+
+const capability = normalizeAuthorityProbeResponse({
+  healthy: true,
+  features: {
+    sql: { queryPage: true, stat: true },
+    trivium: { bulkMutations: true, searchContext: true },
+    jobs: { background: true, builtinTypes: ["delay", "trivium.flush"] },
+    transfers: { blob: true, fs: true },
+    bme: {
+      protocolVersion: 1,
+      vectorManifest: true,
+      vectorApply: false,
+      vectorApplyJobs: false,
+      serverEmbeddingProbe: false,
+      candidateSearch: false,
+    },
+  },
+});
+
+assert.equal(capability.bmeProtocolVersion, 1);
+assert.equal(capability.bmeVectorManifestReady, true);
+assert.equal(capability.bmeVectorApplyReady, false);
+assert.equal(capability.bmeServerEmbeddingProbeReady, false);
+assert.ok(capability.features.includes("bme.vectormanifest"));
+assert.ok(capability.features.includes("bme.protocolversion"));
+
+const legacy = normalizeAuthorityCapabilityState({
+  installed: true,
+  healthy: true,
+  sessionReady: true,
+  permissionReady: true,
+  features: ["sql.query", "sql.mutation", "trivium.search"],
+});
+assert.equal(legacy.bmeVectorManifestReady, false);
+assert.equal(legacy.bmeProtocolVersion, 0);
+
+console.log("authority-bme-capabilities tests passed");