Bump next from 13.5.2 to 15.2.4 in /frontend in the npm_and_yarn group across 1 directory

.devcontainer/Dockerfile

@@ -0,0 +1,12 @@
+FROM mcr.microsoft.com/devcontainers/python:3.11
+
+# Install Node.js and npm
+RUN curl -fsSL https://deb.nodesource.com/setup_18.x | bash - \
+    && apt-get install -y nodejs
+
+# Install global tools if needed (optional)
+RUN npm install -g serve
+
+# Set up Python packages early to cache them in Docker layer
+COPY requirements.txt /tmp/requirements.txt
+RUN pip install --upgrade pip && pip install -r /tmp/requirements.txt

.devcontainer/devcontainer.json

@@ -0,0 +1,25 @@
+{
+  "name": "Enclov-AI Dev Container",
+  "dockerFile": "Dockerfile",
+
+  "settings": {
+    "terminal.integrated.shell.linux": "/bin/bash",
+    "python.pythonPath": "/usr/local/bin/python",
+    "editor.formatOnSave": true
+  },
+
+  "extensions": [
+    "ms-python.python",
+    "ms-toolsai.jupyter",
+    "esbenp.prettier-vscode",
+    "dbaeumer.vscode-eslint",
+    "formulahendry.auto-close-tag",
+    "formulahendry.auto-rename-tag"
+  ],
+
+  "forwardPorts": [3000, 8000, 8501],  // React / FastAPI / Streamlit or similar
+
+  "postCreateCommand": "pip install -r requirements.txt && npm install",
+
+  "remoteUser": "vscode"
+}

frontend/package.json

@@ -9,7 +9,7 @@
     "lint": "next lint"
   },
   "dependencies": {
-    "next": "13.5.2",
+    "next": "14.2.30",
     "react": "18.2.0",
     "react-dom": "18.2.0"
   },