perf: reduce hot test imports and duplicate scans

src/agents/bash-tools.exec-runtime.ts

@@ -27,7 +27,10 @@ import { logWarn } from "../logger.js";
 import type { ManagedRun } from "../process/supervisor/index.js";
 import { getProcessSupervisor } from "../process/supervisor/index.js";
 import type { RunExit, TerminationReason } from "../process/supervisor/types.js";
-import { normalizeDeliveryContext, type DeliveryContext } from "../utils/delivery-context.js";
+import {
+  normalizeDeliveryContext,
+  type DeliveryContext,
+} from "../utils/delivery-context.shared.js";
 import {
   addSession,
   appendOutput,

test/scripts/test-live-shard.test.ts

@@ -6,8 +6,9 @@ import {
 } from "../../scripts/test-live-shard.mjs";
 
 describe("scripts/test-live-shard", () => {
+  const allFiles = collectAllLiveTestFiles();
+
   it("partitions every native live test into exactly one release shard", () => {
-    const allFiles = collectAllLiveTestFiles();
     const selected = LIVE_TEST_SHARDS.flatMap((shard) =>
       selectLiveShardFiles(shard, allFiles).map((file) => ({ file, shard })),
     );
@@ -19,8 +20,6 @@ describe("scripts/test-live-shard", () => {
   });
 
   it("keeps slow gateway backend and media-capable extension files in their own shards", () => {
-    const allFiles = collectAllLiveTestFiles();
-
     expect(selectLiveShardFiles("native-live-src-gateway-backends", allFiles)).toEqual(
       expect.arrayContaining([
         "src/gateway/gateway-acp-bind.live.test.ts",