Add file attachment functionality for equipment management

- Introduced DTO for file attachments with metadata (objectKey, originalFileName, contentType, sizeBytes, downloadUrl).
- Updated Equipment DTO to include an optional attachment field.
- Implemented endpoints for uploading and deleting equipment attachments.
- Enhanced Equipment service to handle file storage and retrieval using S3.
- Updated EquipmentEdit, EquipmentList, and EquipmentShow components to support file attachment input and display.
- Configured S3 settings in docker-compose and environment files.

server/package.json

@@ -20,6 +20,8 @@
     "test:e2e": "jest --config ./test/jest-e2e.json"
   },
   "dependencies": {
+    "@aws-sdk/client-s3": "^3.1033.0",
+    "@aws-sdk/s3-request-presigner": "^3.1033.0",
     "@nestjs/common": "^11.0.1",
     "@nestjs/config": "^4.0.3",
     "@nestjs/core": "^11.0.1",
@@ -30,6 +32,7 @@
     "class-validator": "^0.15.1",
     "dotenv": "^17.4.0",
     "jose": "^6.2.2",
+    "multer": "^2.1.1",
     "pg": "^8.20.0",
     "reflect-metadata": "^0.2.2",
     "rxjs": "^7.8.1"
@@ -42,6 +45,7 @@
     "@nestjs/testing": "^11.0.1",
     "@types/express": "^5.0.0",
     "@types/jest": "^30.0.0",
+    "@types/multer": "^2.1.0",
     "@types/node": "^24.0.0",
     "@types/pg": "^8.20.0",
     "@types/supertest": "^7.0.0",