chore: add Dev Container configuration

Author: Genyus

.devcontainer/devcontainer.json

@@ -0,0 +1,36 @@
+// For format details, see https://aka.ms/devcontainer.json. For config options, see the
+// README at: https://github.com/devcontainers/templates/tree/main/src/java
+{
+    "name": "Java",
+    // Or use a Dockerfile or Docker Compose file. More info: https://containers.dev/guide/dockerfile
+    "image": "mcr.microsoft.com/devcontainers/java:1-21-bookworm",
+  
+    "features": {
+      "ghcr.io/devcontainers/features/java:1": {
+        "version": "none",
+        "installMaven": "false",
+        "installGradle": "false"
+      }
+    },
+  
+    // Configure tool-specific properties.
+    "customizations": {
+      // Configure properties specific to VS Code.
+      "vscode": {
+        // Add the IDs of extensions you want installed when the container is created.
+        "extensions": [
+          "esbenp.prettier-vscode",
+          "vscjava.vscode-java-pack",
+          "vmware.vscode-boot-dev-pack",
+          "cweijan.vscode-mysql-client2",
+          "GitHub.vscode-pull-request-github",
+          "github.codespaces",
+          "bierner.github-markdown-preview",
+          "Postman.postman-for-vscode"
+        ]
+      }
+    },
+  
+    "forwardPorts": [8080]
+  }
+