fix(hooks): add dotenvx dependency and use pnpm exec in pre-commit

Fixes missing dotenvx command error in pre-commit hook.

Changes:
- Add @dotenvx/dotenvx as dev dependency
- Update pre-commit hook to use 'pnpm exec dotenvx' instead of 'dotenvx'
- Add coverage-isolated/ to .gitignore
- Ensures dotenvx is available from node_modules/.bin

Author: jdalton

.gitignore

@@ -17,6 +17,7 @@ desktop.ini
 # Build artifacts
 /.type-coverage
 /coverage
+/coverage-isolated
 **/dist
 **/*.tsbuildinfo
 *.d.ts

.husky/pre-commit

@@ -8,7 +8,7 @@ else
 fi
 
 if [ -z "${DISABLE_PRECOMMIT_TEST}" ]; then
-  dotenvx -q run -f .env.precommit -- pnpm test --staged
+  pnpm exec dotenvx -q run -f .env.precommit -- pnpm test --staged
 else
   echo "Skipping testing due to DISABLE_PRECOMMIT_TEST env var"
 fi

package.json

@@ -62,6 +62,7 @@
     "@babel/traverse": "7.26.4",
     "@babel/types": "7.26.3",
     "@biomejs/biome": "2.2.4",
+    "@dotenvx/dotenvx": "^1.51.1",
     "@eslint/compat": "1.3.2",
     "@eslint/js": "9.35.0",
     "@socketregistry/packageurl-js": "1.3.5",