fix: correct ci configuration

- remove explicit pnpm version to use packageManager field
- include pnpm-lock.yaml for reproducible builds

Author: Mearman

.github/workflows/ci.yml

@@ -22,8 +22,6 @@ jobs:
 
       - name: Setup pnpm
         uses: pnpm/action-setup@v4
-        with:
-          version: 10
 
       - name: Setup Node.js
         uses: actions/setup-node@v4
@@ -70,8 +68,6 @@ jobs:
 
       - name: Setup pnpm
         uses: pnpm/action-setup@v4
-        with:
-          version: 10
 
       - name: Setup Node.js
         uses: actions/setup-node@v4

.gitignore

@@ -38,7 +38,5 @@ pnpm-debug.log*
 *.tmp
 .cache/
 
-# Lock file (single package, not workspace)
-pnpm-lock.yaml
-
+# Benchmark data (downloaded separately)
 data/