fix: update stale .js usage comments and husky cli.js fallback path (#1975)

[carlos-alm]

Summary

• 5 `scripts/*.ts` files (benchmark, build-wasm, embedding-benchmark, query-benchmark, incremental-benchmark) still had `Usage: node scripts/X.js` header comments from before they were renamed to `.ts`. Updated each to the actual current invocation (`node --experimental-strip-types --import ./scripts/ts-resolve-loader.js scripts/X.ts`, or `node scripts/node-ts.js scripts/build-wasm.ts` for build-wasm specifically, matching its own npm script).
• `.husky/pre-commit` and `.husky/commit-msg` both fell back to `node src/cli.js` when the global `codegraph` binary isn't on PATH — `src/cli.js` hasn't existed since the source moved to `src/cli.ts` (compiled to `dist/cli.js`). The `|| true` swallowed the failure silently, so on any machine without a global `codegraph` install, the pre-commit graph rebuild and commit-msg impact summary silently never ran. Pointed both fallbacks at `dist/cli.js`.

Verification

• Comment-only + shell-hook-only change; nothing in `src/`/`tests/` (biome's lint scope) touched.
• `npm run lint` — clean.
• Manually confirmed `node dist/cli.js build ` runs correctly (the exact fallback invocation).

Closes #1975

[greptile-apps]

Greptile Summary

Updates stale developer-facing invocations and restores local CLI fallbacks in Git hooks.

• Points pre-commit and commit-msg fallbacks to the compiled dist/cli.js entry point.
• Corrects usage comments across five TypeScript scripts to show valid launch commands.

Confidence Score: 5/5

The PR appears safe to merge with no actionable defects identified.

The hook fallbacks now target the package's compiled CLI entry point, which is produced during the same prepare lifecycle that installs Husky, and each revised script command is valid for the repository's supported Node versions.

Important Files Changed

Filename	Overview
.husky/pre-commit	Replaces the nonexistent source JavaScript fallback with the package's compiled CLI entry point.
.husky/commit-msg	Uses the compiled CLI when generating staged impact summaries without a global binary.
scripts/benchmark.ts	Updates the usage comment to match the repository's benchmark command.
scripts/build-wasm.ts	Updates the usage comment to use the existing TypeScript launcher.
scripts/embedding-benchmark.ts	Documents a valid direct TypeScript invocation with the resolution loader.
scripts/incremental-benchmark.ts	Documents a valid direct TypeScript invocation with the resolution loader.
scripts/query-benchmark.ts	Documents a valid direct TypeScript invocation with the resolution loader.

_{Reviews (1): Last reviewed commit: "fix: update stale .js usage comments and..." | Re-trigger Greptile}