docs: Update unified app spec to use root directory structure

Modified all specification files to reference the project root directory (.)
instead of creating a new unified-app/ subdirectory:

- spec.md: Updated project structure and all file paths
- SUMMARY.md: Updated critical files paths and documentation references
- critical-files.md: Updated all source/destination paths for migration
- MIGRATION_CHECKLIST.md: Updated directory creation and file paths

All implementation files will now be created directly in /mnt/e/proiecte/roa2web/
instead of /mnt/e/proiecte/roa2web/unified-app/

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

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

.auto-build-data/specs/unified-app/status.json

@@ -0,0 +1,30 @@
+{
+  "feature": "unified-app",
+  "status": "SPEC_COMPLETE",
+  "created": "2025-12-22T01:09:00Z",
+  "updated": "2025-12-22T01:13:00Z",
+  "complexity": "medium",
+  "estimated_effort": "2.5 days",
+  "history": [
+    {
+      "status": "SPEC_DRAFT",
+      "at": "2025-12-22T01:09:00Z"
+    },
+    {
+      "status": "SPEC_COMPLETE",
+      "at": "2025-12-22T01:13:00Z"
+    }
+  ],
+  "files": {
+    "spec": "spec.md",
+    "summary": "SUMMARY.md",
+    "critical_files": "critical-files.md",
+    "migration_checklist": "MIGRATION_CHECKLIST.md"
+  },
+  "stats": {
+    "files_to_create": 15,
+    "files_to_migrate": 20,
+    "css_files_to_copy": 30,
+    "total_files_affected": 65
+  }
+}