fix: index many-to-many query invalidation

config/contracts/registry-change-evidence.json

@@ -9,6 +9,14 @@
       "rollback": "Restore the V1 writer in scripts/generate-build-manifest.ts and the scalar key in public/config.json; the V1 reader is still present.",
       "owner": "frontend-platform"
     },
+    {
+      "changeId": "FE-REG-QUERY:*:*:removed",
+      "versionBump": "Query invalidation composition moves from the legacy flat query registry to the bounded many-to-many invalidation graph.",
+      "migration": "Installed feature contracts now contribute topics, namespace identities, edges, and separate wire versions; bootstrap validates and indexes those contributions before constructing coordinators.",
+      "compatibilityWindow": "Cross-context envelopes remain opaque topic/version pairs and release cache epochs isolate mixed releases; no query keys or cached values cross contexts.",
+      "rollback": "Restore the flat QUERY_REGISTRY composition and its coordinator adapter together with the prior governance entry.",
+      "owner": "frontend-platform"
+    },
     {
       "changeId": "FE-REG-QUERY:$contract:allowedValues:contract-field-changed",
       "versionBump": "Cross-context invalidation wire protocol starts at version 1.",

config/contracts/registry-governance.json

@@ -379,52 +379,6 @@
       ],
       "breakingFields": ["kind", "userMessageKey", "action", "telemetryEvent"]
     },
-    {
-      "registryId": "FE-REG-QUERY",
-      "path": "src/features/installed-feature-contracts.ts",
-      "exportName": "QUERY_REGISTRY",
-      "owner": "feature-frontend-server-state-caching-contract",
-      "requiredFields": [
-        "namespace",
-        "serialization",
-        "identity",
-        "invalidation",
-        "invalidationTopic",
-        "crossContext",
-        "version",
-        "persistence"
-      ],
-      "fieldTypes": {
-        "namespace": "array",
-        "serialization": "string",
-        "identity": "string",
-        "invalidation": "string",
-        "invalidationTopic": "string",
-        "crossContext": "string",
-        "version": "integer",
-        "persistence": "string"
-      },
-      "uniqueFields": ["namespace", "invalidationTopic"],
-      "allowedValues": {
-        "crossContext": ["invalidate-only"],
-        "persistence": ["disabled"]
-      },
-      "consumers": [
-        {
-          "path": "src/features/reference-feature/contracts/reference-feature-contract.ts",
-          "token": "referenceQueryKeys"
-        }
-      ],
-      "breakingFields": [
-        "namespace",
-        "serialization",
-        "identity",
-        "invalidationTopic",
-        "crossContext",
-        "version",
-        "persistence"
-      ]
-    },
     {
       "registryId": "FE-REG-TELEMETRY",
       "path": "src/contracts/telemetry.ts",