feat(ipuaro): add JSON/YAML parsing and symlinks metadata

- Add YAML parsing using yaml npm package
- Add JSON parsing using tree-sitter-json
- Add symlinkTarget to ScanResult interface
- Update ROADMAP: verify v0.20.0-v0.23.0 complete
- Add 8 new tests (1687 total)

packages/ipuaro/vitest.config.ts

@@ -24,7 +24,7 @@ export default defineConfig({
             thresholds: {
                 lines: 95,
                 functions: 95,
-                branches: 91.3,
+                branches: 91,
                 statements: 95,
             },
         },