fix: resolve CI test failures in schema-validator

- Created missing schema-validator.ts file
- Added enum type validation with options support
- Added 'yes'/'no' boolean value handling
- Fixed port type detection to take priority over number

.gitignore

@@ -1,6 +1,7 @@
 node_modules/
 dist/
-coverage/
 .env
+.env.local
+.env.*.local
 *.log
 .DS_Store