Reuse verified immutable plans and streamline cooperative hashing

Continue final hosted development reliability qualification.

src/execution-world/queries.ts

@@ -1,7 +1,8 @@
+import { executionPlanDigest, ExecutionPlanError, type ExecutionPlan } from "./plan.js";
 import { compileKernelProgram } from "./kernel.js";
 import { compileInspectionTemplates } from "./inspection.js";
 import { portableValueSchema } from "../bindings/portable.js";
-import { ExecutionPlanError, hexDigest, type ExecutionPlan } from "./plan.js";
+
 import type { ValueType } from "../capability-model/types.js";
 import { compileQueryComposition } from "../query/composition.js";
 import { queryTreeBlueprint } from "./query-trees.js";
@@ -24,7 +25,7 @@ const lowerTypes = (value: unknown): unknown =>
 /** Checked query IR and installed getter identities, without GraphQL schemas/parsers or SQL adapters.
  * Keep authored selection names only for output paths; field access uses resolved interface/member IDs. */
 export function compileQueryProgram(plan: ExecutionPlan): unknown {
-  if (hexDigest(plan.definition) !== plan.digest)
+  if (executionPlanDigest(plan) !== plan.digest)
     throw new ExecutionPlanError("INVALID_PLAN", "queries", "Plan digest mismatch");
   const allQueries = new Map(plan.definition.queries.map(({ id, query }) => [id, query.checked]));
   const compositions = plan.definition.workspace.packageImports.flatMap((pkg) =>