chore(knip): declare the live suite's fixture servers as entry points

Author: waleedlatif1

knip.jsonc

@@ -29,6 +29,8 @@
         "platform/checks/**/*.spec.ts",
         // Started by .github/scripts/http-e2e.sh as the live suite's scripted worker.
         "platform/checks/live/support/scripted-agent.ts",
+        "platform/checks/live/support/appconfig-service.ts",
+        "platform/checks/live/support/failing-zone.ts",
         // Only webpack reaches this, through the `@sim/emcn` alias in platform/next.config.ts.
         "platform/lib/data/emcn-shim.ts",
         // Same, through `canvasShims` in platform/next.config.ts.