feat: Frontend CSS refactoring and test improvements

Frontend:
- Refactored CSS architecture with new utility classes
- Updated dashboard components styling
- Improved responsive grid system
- Enhanced typography and variables
- Updated E2E and integration tests

Added:
- Claude Code slash commands for validation
- SSH tunnel and start test scripts

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

reports-app/frontend/tests/integration/api-endpoints/data-consistency.spec.js

@@ -5,9 +5,8 @@
  */
 
 import { test, expect } from '@playwright/test';
-import { 
-  authenticateWithRealCredentials, 
-  getRealCompanies,
+import {
+  authenticateWithRealCredentials,
   selectCompany,
   REAL_CREDENTIALS,
   API_ENDPOINTS
@@ -64,7 +63,7 @@ test.describe('Oracle Cross-Schema Data Consistency', () => {
     // Additional Oracle-specific fields that might be present
     const oracleFields = ['cui', 'reg_com', 'adresa', 'telefon', 'email'];
     oracleFields.forEach(field => {
-      if (romfast.hasOwnProperty(field)) {
+      if (Object.prototype.hasOwnProperty.call(romfast, field)) {
         console.log(`ℹ️  Oracle field '${field}' present:`, romfast[field]);
       }
     });