fix: Switch to Dockerfile build to resolve cache issues

Author: jonathanpeterwu

.dockerignore

@@ -0,0 +1,27 @@
+node_modules
+npm-debug.log
+.git
+.gitignore
+.env
+.env.local
+.DS_Store
+*.log
+coverage
+.nyc_output
+.vscode
+.idea
+dist
+build
+*.md
+.github
+.husky
+.stackmemory
+.claude
+claude-auto-triggers
+docs
+archive
+test
+tests
+__tests__
+*.test.*
+*.spec.*

Dockerfile

@@ -0,0 +1,31 @@
+# Railway Optimized Dockerfile
+FROM node:20-slim
+
+# Install dependencies for build
+RUN apt-get update && apt-get install -y \
+    python3 \
+    make \
+    g++ \
+    && rm -rf /var/lib/apt/lists/*
+
+# Set working directory
+WORKDIR /app
+
+# Copy package files
+COPY package*.json ./
+
+# Install dependencies with clean cache
+RUN npm ci --legacy-peer-deps && \
+    npm cache clean --force
+
+# Copy source code
+COPY . .
+
+# Build the application
+RUN npm run build
+
+# Expose port
+EXPOSE 3000
+
+# Start the application
+CMD ["node", "dist/servers/railway/minimal.js"]

railway.json

@@ -1,7 +1,8 @@
 {
   "$schema": "https://railway.app/railway.schema.json",
   "build": {
-    "builder": "NIXPACKS",
+    "builder": "DOCKERFILE",
+    "dockerfilePath": "Dockerfile",
     "watchPatterns": [
       "src/**",
       "package.json"