chore(replicache-perf): Cleanup build (#2580)

- Use tsx for build script and remove build for runner.
- Fix typescript errors
- Move idb brenchmark enumeration to idb file.

Author: arv

.github/workflows/perf-smoke.yml

@@ -29,5 +29,5 @@ jobs:
         working-directory: packages/replicache-perf
         run: |
           npm run build
-          node out/runner.js --format=json --run='populate 1024x1000 \(clean, indexes: 0\)'
+          npx tsx src/runner.ts --format=json --run='populate 1024x1000 \(clean, indexes: 0\)'
         shell: bash

.github/workflows/perf-v2.js.yml

@@ -32,7 +32,7 @@ jobs:
         working-directory: packages/replicache-perf
         run: |
           npm run build
-          node out/runner.js --format=json | tee perf-temp-output.json
+          npx tsx src/runner.ts --format=json | tee perf-temp-output.json
           node tool/split-perf.js perf-temp-output.json perf-v2-output.json perf-v2-p95-output.json
         shell: bash