feat: RLA API v1.0.0 — API complète + exports + thème McKinsey

- 9 endpoints métier : synthese, alertes, en-service, en-cours,
  par-region, clotures, pilotage-proactif, matrice-risque
- Exports PDF (tous rôles) / XLSX PPTX DOCX (superadmin)
- services/calc.js : helpers normalisés partagés
- services/export-pdf.js : PDF async PDFKit par vue
- Thème McKinsey (#1C2B4B / bleu pétrole / gris sobre)
- Boutons XLSX/DOCX front (superadmin uniquement)
- BASEROW_API_URL → https://baserow.bolbol.tn/api/
- dotenv override: true

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

package.json

@@ -0,0 +1,22 @@
+{
+  "name": "rla-api",
+  "version": "1.0.0",
+  "description": "API REST Marchés RLA - Tunisie Telecom Zone Sud",
+  "main": "server.js",
+  "scripts": {
+    "start": "node server.js",
+    "dev": "node --watch server.js"
+  },
+  "dependencies": {
+    "axios": "^1.7.2",
+    "bcryptjs": "^2.4.3",
+    "cors": "^2.8.5",
+    "docx": "^9.6.1",
+    "dotenv": "^16.4.5",
+    "exceljs": "^4.4.0",
+    "express": "^4.19.2",
+    "jsonwebtoken": "^9.0.2",
+    "pdfkit": "^0.17.2",
+    "pptxgenjs": "^4.0.1"
+  }
+}