chore(devcontainer): optimize prebuilt image performance (v2) (#329)

* fix(devcontainer): add workspace mount to docker-compose

- add explicit workspace mount ../:/workspaces/SimpleAccounts-UAE
- use fixed workspace path instead of variable
- fixes 'lstat /workspaces/content: no such file or directory' error

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

* chore(devcontainer): optimize prebuilt image performance

- Bake Playwright system dependencies into Dockerfile
- Combine apt-get layers for efficiency
- Pre-cache Maven and NPM dependencies during build
- Update post-create.sh to utilize pre-seeded caches

* fix(devcontainer): remove duplicate instructions and include .npmrc

---------

Co-authored-by: Mohsin Hashmi <mhashmi@wiser.com>
Co-authored-by: Claude Opus 4.5 <noreply@anthropic.com>

Author: 3 people

.devcontainer/Dockerfile

@@ -7,22 +7,9 @@ FROM mcr.microsoft.com/devcontainers/java:21-bookworm
 ARG NODE_VERSION="20"
 RUN su vscode -c "umask 0002 && . /usr/local/share/nvm/nvm.sh && nvm install ${NODE_VERSION} 2>&1"
 
-# ============================================
+# ============================================ 
 # INSTALL TOOLS (baked in for faster startup)
-# ============================================
-
-# SimpleAccounts-UAE Development Container
-# Base image with Node 20 and Java 21 for full-stack development
-
-FROM mcr.microsoft.com/devcontainers/java:21-bookworm
-
-# Install Node.js 20
-ARG NODE_VERSION="20"
-RUN su vscode -c "umask 0002 && . /usr/local/share/nvm/nvm.sh && nvm install ${NODE_VERSION} 2>&1"
-
-# ============================================
-# INSTALL TOOLS (baked in for faster startup)
-# ============================================
+# ============================================ 
 
 # Install Docker CLI, Docker Compose, GitHub CLI, and System Dependencies
 RUN apt-get update && export DEBIAN_FRONTEND=noninteractive \
@@ -95,9 +82,9 @@ ENV PLAYWRIGHT_CHROMIUM_EXECUTABLE_PATH=/usr/bin/chromium
 # Install global npm packages
 RUN su vscode -c "source /usr/local/share/nvm/nvm.sh && npm install -g npm@latest" 2>&1
 
-# ============================================
+# ============================================ 
 # PRE-CACHE DEPENDENCIES
-# ============================================
+# ============================================ 
 
 USER vscode
 
@@ -114,7 +101,7 @@ COPY --chown=vscode:vscode package.json package-lock.json ./
 RUN . /usr/local/share/nvm/nvm.sh && npm ci --ignore-scripts
 
 WORKDIR /tmp/frontend
-COPY --chown=vscode:vscode apps/frontend/package.json apps/frontend/package-lock.json ./
+COPY --chown=vscode:vscode apps/frontend/package.json apps/frontend/package-lock.json apps/frontend/.npmrc* ./
 RUN . /usr/local/share/nvm/nvm.sh && npm ci --legacy-peer-deps --ignore-scripts
 
 # Clean up temp directories
@@ -125,4 +112,4 @@ RUN rm -rf /tmp/backend /tmp/root /tmp/frontend
 WORKDIR /workspaces
 
 # Default command
-CMD ["sleep", "infinity"]
+CMD ["sleep", "infinity"]