fix: Email template improvements

backend/Dockerfile

@@ -9,16 +9,21 @@ RUN apk add --no-cache dumb-init git curl
 # Set working directory
 WORKDIR /app
 
-# Copy package files
-COPY package*.json ./
+# Copy package files from backend directory
+COPY backend/package*.json ./
 
 # Install all dependencies (including dev for building)
 RUN npm install && npm cache clean --force
 
-# Copy source code
-COPY . .
+# Copy logo from frontend for email templates (needed for build)
+RUN mkdir -p frontend/public/images/logos
+COPY frontend/public/images/logos/motovaultpro-logo-title.png frontend/public/images/logos/
 
-# Build the application
+# Copy backend source code
+COPY backend/ .
+
+# Build the application (prebuild will encode logo)
+ENV DOCKER_BUILD=true
 RUN npm run build
 
 # Stage 2: Production runtime
@@ -31,7 +36,7 @@ RUN apk add --no-cache dumb-init curl postgresql-client
 WORKDIR /app
 
 # Copy package files and any lock file generated in builder stage
-COPY package*.json ./
+COPY backend/package*.json ./
 COPY --from=builder /app/package-lock.json ./
 
 # Install only production dependencies
@@ -52,7 +57,7 @@ COPY --from=builder /app/src/features /app/migrations/features
 COPY --from=builder /app/src/core /app/migrations/core
 
 # Copy entrypoint script for permission checks
-COPY scripts/docker-entrypoint.sh /usr/local/bin/docker-entrypoint.sh
+COPY backend/scripts/docker-entrypoint.sh /usr/local/bin/docker-entrypoint.sh
 RUN chmod 755 /usr/local/bin/docker-entrypoint.sh
 
 # Change ownership to non-root user