chore: add VS Code workspace extensions recommendations

.vscode/extensions.json

@@ -0,0 +1,29 @@
+{
+  "recommendations": [
+    // Java Development
+    "vscjava.vscode-java-pack", // Extension Pack for Java - Language server, debugger, test runner, Maven
+    "vscjava.vscode-lombok", // Lombok Annotations Support - Boilerplate code generation
+    "vmware.vscode-boot-dev-pack", // Spring Boot Extension Pack - Spring Boot tooling and dashboard
+    "redhat.vscode-xml", // XML - Language support for XML files
+
+    // Infrastructure & Workflow
+    "ms-azuretools.vscode-containers", // Container Tools - Docker and container management
+    "yy0931.vscode-sqlite3-editor", // SQLite3 Editor - Database viewer
+    "sonarsource.sonarlint-vscode", // SonarLint - Code quality and security analysis
+    "github.copilot-chat", // GitHub Copilot Chat - AI coding assistant
+    "github.vscode-pull-request-github", // GitHub Pull Requests and Issues - PR management
+    "github.vscode-github-actions", // GitHub Actions - CI/CD workflow support
+    "redhat.vscode-yaml", // YAML - Language support for YAML files
+    "davidanson.vscode-markdownlint", // MarkdownLint - Markdown linting
+    "foxundermoon.shell-format", // Shell Format - Shell script formatter
+    "codezombiech.gitignore", // Gitignore - .gitignore file support
+    "ryanluker.vscode-coverage-gutters", // Coverage Gutters - Test coverage visualization
+    "usernamehw.errorlens" // Error Lens - Inline error and warning display
+  ],
+  "unwantedRecommendations": [
+    "vscjava.vscode-gradle", // Gradle for Java - Project uses Maven exclusively
+    "ms-azuretools.vscode-docker", // Docker (legacy) - Use vscode-containers instead
+    "docker.docker", // Docker DX - Use ms-azuretools.vscode-containers
+    "github.copilot" // Copilot (base) - Unified into copilot-chat
+  ]
+}