fix(enhance): use robust package.json path resolution

Address PR #130 feedback: Replace hardcoded relative path assumption
with findNearestPackageJson() that walks up the directory tree.

This fixes the issue where plugin analyzer would fail if run from
non-standard directory structure.

Author: avifenesh

lib/enhance/plugin-analyzer.js

@@ -14,6 +14,32 @@ const securityPatterns = require('./security-patterns');
 const reporter = require('./reporter');
 const fixer = require('./fixer');
 
+/**
+ * Find nearest package.json by walking up directory tree
+ * @param {string} startPath - Starting directory path
+ * @param {number} maxLevels - Maximum levels to traverse (default: 5)
+ * @returns {string|null} Path to package.json or null if not found
+ */
+function findNearestPackageJson(startPath, maxLevels = 5) {
+  let currentPath = path.resolve(startPath);
+
+  for (let i = 0; i < maxLevels; i++) {
+    const packageJsonPath = path.join(currentPath, 'package.json');
+    if (fs.existsSync(packageJsonPath)) {
+      return packageJsonPath;
+    }
+
+    const parentPath = path.dirname(currentPath);
+    if (parentPath === currentPath) {
+      // Reached root
+      break;
+    }
+    currentPath = parentPath;
+  }
+
+  return null;
+}
+
 /**
  * Analyze a single plugin
  * @param {string} pluginPath - Path to plugin directory
@@ -68,10 +94,10 @@ async function analyzePlugin(pluginPath, options = {}) {
     }
   }
 
-  // Check package.json for version comparison
-  const packageJsonPath = path.join(pluginPath, '..', '..', 'package.json');
+  // Check package.json for version comparison (walk up to find it)
+  const packageJsonPath = findNearestPackageJson(pluginPath);
   let packageJson = null;
-  if (fs.existsSync(packageJsonPath)) {
+  if (packageJsonPath) {
     try {
       packageJson = JSON.parse(fs.readFileSync(packageJsonPath, 'utf8'));
     } catch (err) {