docker changes

.yarnrc.yml

@@ -0,0 +1 @@
+nodeLinker: node-modules

apps/backend/Dockerfile

@@ -2,8 +2,12 @@
 FROM node:20 AS build
 WORKDIR /app
 
+# Enable Corepack and prepare Yarn 4.x
+RUN corepack enable && corepack prepare yarn@4.5.1 --activate
+
 # Copy package files
-COPY package.json yarn.lock ./
+COPY package.json yarn.lock .yarnrc.yml ./
+COPY .yarn/ .yarn/
 COPY apps/backend/package.json* ./apps/backend/
 COPY shared/package.json* ./shared/
 
@@ -12,7 +16,7 @@ RUN yarn install --frozen-lockfile
 
 # Copy source code and build
 COPY . .
-RUN npx nx build backend
+RUN yarn nx build backend
 
 # Production stage
 FROM node:20-slim AS runtime

docker-compose.dev.yml

@@ -81,6 +81,8 @@ services:
       # JWT and Auth (add secrets in prod)
       JWT_SECRET: dev-secret-change-in-prod
 
+      STRIPE_SECRET_KEY: sk_test_1234567890
+
     ports:
       - '3001:3001'
     depends_on:

package.json

@@ -106,5 +106,6 @@
     "typescript": "^5.1.3",
     "vite": "7.1.3",
     "vitest": "^1.3.1"
-  }
+  },
+  "packageManager": "yarn@4.5.1+sha512.341db9396b6e289fecc30cd7ab3af65060e05ebff4b3b47547b278b9e67b08f485ecd8c79006b405446262142c7a38154445ef7f17c1d5d1de7d90bf9ce7054d"
 }