docs: update build documentation and gitignore

- Update yao-pkg-build.md plan
- Update CI testing guide
- Add build/ to gitignore

Author: jdalton

.gitignore

@@ -2,7 +2,6 @@
 ._.DS_Store
 Thumbs.db
 /.claude
-/.custom-node-build
 /.env
 /.nvm
 /.rollup.cache
@@ -24,11 +23,6 @@ Thumbs.db
 /yarn.lock
 
 !/.vscode/extensions.json
-pkg-binaries/
 
-# pkg/yao-pkg built binaries
-/socket
-/socket-*
-
-# Build directory for temporary artifacts
+# Build directory for all build artifacts
 /build

docs/guides/dev/ci-testing.md

@@ -218,7 +218,7 @@ pnpm run s
 **Problem**: Coverage reports show gaps
 
 **Solution**:
-1. Run `pnpm coverage` locally
+1. Run `pnpm cover` locally
 2. Review untested code paths
 3. Add tests for edge cases
 

docs/plans/yao-pkg-build.md

@@ -753,4 +753,4 @@ Socket CLI supports both pkg (yao-pkg) and SEA (Single Executable Application):
   - `docs/YAO_PKG_CI_SETUP.md` - CI setup for yao-pkg builds
   - `docs/BOOTSTRAP_EXECUTABLE.md` - Bootstrap launcher architecture
   - `scripts/build-yao-pkg-node.mjs` - Node.js build script
-  - `scripts/check-build-deps.mjs` - Dependency verification script
+  - `scripts/build/check-build-deps.mjs` - Dependency verification script