Add safe logging utility for credential protection

- Created lib/safe-logging.ts with utilities for safe logging
- logConfigSafely() automatically redacts credentials field
- logSafely() redacts common sensitive fields (password, email, token, etc)
- Updated enhanced-screenshot service to use safe logging utility
- Provides reusable pattern for secure logging throughout codebase

lib/safe-logging.ts

@@ -0,0 +1,55 @@
+/**
+ * Safe logging utilities to prevent credential exposure
+ */
+
+export interface ConfigWithCredentials {
+  credentials?: {
+    email?: string
+    password?: string
+  }
+  [key: string]: any
+}
+
+/**
+ * Safely log a config object, redacting sensitive credentials
+ */
+export function logConfigSafely(config: ConfigWithCredentials, label = 'Config'): void {
+  const safeConfig = {
+    ...config,
+    credentials: config.credentials ? '[REDACTED]' : undefined
+  }
+  
+  console.log(`📋 ${label}:`, safeConfig)
+}
+
+/**
+ * Safely log any object, redacting common sensitive fields
+ */
+export function logSafely(obj: any, label = 'Data'): void {
+  const sensitiveFields = ['password', 'email', 'credentials', 'token', 'key', 'secret']
+  
+  const safeObj = JSON.parse(JSON.stringify(obj, (key, value) => {
+    if (sensitiveFields.some(field => key.toLowerCase().includes(field))) {
+      return '[REDACTED]'
+    }
+    return value
+  }))
+  
+  console.log(`📋 ${label}:`, safeObj)
+}
+
+/**
+ * Create a safe string representation for logging
+ */
+export function createSafeLogString(obj: any): string {
+  const sensitiveFields = ['password', 'email', 'credentials', 'token', 'key', 'secret']
+  
+  const safeObj = JSON.parse(JSON.stringify(obj, (key, value) => {
+    if (sensitiveFields.some(field => key.toLowerCase().includes(field))) {
+      return '[REDACTED]'
+    }
+    return value
+  }))
+  
+  return JSON.stringify(safeObj, null, 2)
+}