Implement shared live fields and checked query hydration

Add native register acknowledgments and idempotent mutation replay, shared optimistic field controllers, overlapping custom setters, non-suspending hooks and explicit Suspense. Carry checked @live provenance through batched queries and hydrate shared browser fields with coverage leases. Update tracker/scaffolds/guides and verify compiler, PostgreSQL, browser and immutable workspace paths.

src/query/schema.ts

@@ -10,6 +10,9 @@ import {
   GraphQLList,
   GraphQLNonNull,
   GraphQLSchema,
+  GraphQLDirective,
+  DirectiveLocation,
+  specifiedDirectives,
   type GraphQLOutputType,
   type GraphQLInputType,
   type GraphQLFieldConfigMap,
@@ -241,6 +244,7 @@ export function querySchema(
     return result;
   };
   const schema = new GraphQLSchema({
+    directives: [...specifiedDirectives, new GraphQLDirective({ name: "live", locations: [DirectiveLocation.FIELD] })],
     query: new GraphQLObjectType({
       name: "QxQuery",
       fields: { root: { type: new GraphQLNonNull(object(declaration.root)) } },