Migrate exchange backend from Django to Express + Apollo Server + Prisma

Replace Python/Django/Graphene with TypeScript/Express/Apollo Server.
Same 4 endpoints (public/user/team/m2m), same JWT auth.
Prisma replaces Django ORM for Offer/Request/SupplierProfile.
Temporal and Odoo integrations preserved.

package.json

@@ -0,0 +1,30 @@
+{
+  "name": "exchange",
+  "version": "1.0.0",
+  "private": true,
+  "type": "module",
+  "scripts": {
+    "dev": "tsx watch src/index.ts",
+    "build": "prisma generate && tsc",
+    "start": "prisma migrate deploy && node dist/index.js"
+  },
+  "dependencies": {
+    "@apollo/server": "^4.11.3",
+    "@prisma/client": "^6.5.0",
+    "@temporalio/client": "^1.11.7",
+    "cors": "^2.8.5",
+    "express": "^4.21.2",
+    "graphql": "^16.10.0",
+    "graphql-tag": "^2.12.6",
+    "jose": "^6.0.11",
+    "@sentry/node": "^9.5.0"
+  },
+  "devDependencies": {
+    "@types/cors": "^2.8.17",
+    "@types/express": "^5.0.0",
+    "@types/node": "^22.13.0",
+    "prisma": "^6.5.0",
+    "tsx": "^4.19.0",
+    "typescript": "^5.7.0"
+  }
+}