fix: Dockerfile paths for repo-root build context

backend/docker-compose.yml

@@ -44,7 +44,8 @@ services:
 
   frontend:
     build:
-      context: ../web/normogen-web
+      context: ..
+      dockerfile: web/normogen-web/Dockerfile
     container_name: normogen-frontend
     restart: unless-stopped
     ports:

web/normogen-web/Dockerfile

@@ -12,11 +12,11 @@ FROM node:20-slim AS node-builder
 WORKDIR /app
 
 # Copy package files and install deps.
-COPY package.json package-lock.json ./
+COPY web/normogen-web/package.json web/normogen-web/package-lock.json ./
 RUN npm ci
 
 # Copy the source and build.
-COPY . .
+COPY web/normogen-web/ ./
 RUN npm run build
 
 # ============================================================================
@@ -27,7 +27,7 @@ FROM rust:latest AS rust-builder
 WORKDIR /server
 
 # Copy the frontend-server crate.
-COPY frontend-server/ ./
+COPY web/frontend-server/ ./
 
 # Build release.
 RUN cargo build --release