feat:Added files for devcontainer support

.devcontainer/Dockerfile

@@ -0,0 +1,12 @@
+FROM mcr.microsoft.com/devcontainers/javascript-node:20
+
+# Install mkcert and NSS (for browser trust)
+RUN apt-get update && apt-get install -y libnss3-tools \
+    && curl -JLO "https://dl.filippo.io/mkcert/latest?for=linux/amd64" \
+    && chmod +x mkcert-v*-linux-amd64 \
+    && mv mkcert-v*-linux-amd64 /usr/local/bin/mkcert
+
+# Pre-install npm dependencies (optional but speeds up CDE startup)
+COPY package*.json ./
+RUN npm install
+

.devcontainer/devcontainer.json

@@ -0,0 +1,25 @@
+{
+  "name": "Club Website Workspace",
+  "build": {
+    "dockerfile": "Dockerfile",
+    "context": ".."
+  },
+  "customizations": {
+    "vscode": {
+      "extensions": ["dbaeumer.vscode-eslint", "esbenp.prettier-vscode"]
+    }
+  },
+  "forwardPorts": [3000],
+  "portsAttributes": {
+    "3000": {
+      "label": "npm dev server",
+      "onAutoForward": "notify",
+      "protocol": "http"
+    }
+  },
+  "postCreateCommand": "mkcert localhost 127.0.0.1"
+  "remoteEnv": {
+    "SSL_CRT_FILE": "${containerWorkspaceFolder}/dev-cert.pem",
+    "SSL_KEY_FILE": "${containerWorkspaceFolder}/dev-key.pem"
+  }
+}