Add dev container and VS Code configuration

.devcontainer/Dockerfile

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+FROM mcr.microsoft.com/devcontainers/typescript-node:24
+
+RUN apt-get update && export DEBIAN_FRONTEND=noninteractive \
+    && apt-get install -y --no-install-recommends \
+        docker.io \
+    && apt-get clean -y && rm -rf /var/lib/apt/lists/*
+
+RUN npx playwright install --with-deps chromium

.devcontainer/devcontainer.json

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+{
+  "name": "Lazztech Boilerplate",
+  "build": {
+    "dockerfile": "Dockerfile"
+  },
+  "features": {
+    "ghcr.io/devcontainers/features/docker-from-docker:1": {
+      "version": "latest"
+    }
+  },
+  "forwardPorts": [3000],
+  "portsAttributes": {
+    "3000": {
+      "label": "NestJS App",
+      "onAutoForward": "notify"
+    }
+  },
+  "remoteEnv": {
+    "DATABASE_TYPE": "sqlite"
+  },
+  "postCreateCommand": "npm install",
+  "customizations": {
+    "vscode": {
+      "extensions": [
+        "esbenp.prettier-vscode",
+        "dbaeumer.vscode-eslint",
+        "hbenl.vscode-test-explorer",
+        "bradlc.vscode-tailwindcss",
+        "otovo-oss.htmx-tags",
+        "eamodio.gitlens",
+        "hediet.vscode-drawio",
+        "ms-azuretools.vscode-docker",
+        "cweijan.vscode-database-client2",
+        "ms-azuretools.vscode-containers",
+        "bierner.markdown-mermaid",
+        "streetsidesoftware.code-spell-checker",
+        "ms-playwright.playwright",
+        "orta.vscode-jest"
+      ],
+      "settings": {
+        "editor.formatOnSave": true,
+        "editor.defaultFormatter": "esbenp.prettier-vscode",
+        "editor.codeActionsOnSave": {
+          "source.fixAll.eslint": "explicit"
+        },
+        "eslint.validate": [
+          "javascript",
+          "javascriptreact",
+          "typescript",
+          "typescriptreact"
+        ],
+        "typescript.tsdk": "node_modules/typescript/lib",
+        "tailwindCSS.includeLanguages": {
+          "handlebars": "html"
+        }
+      }
+    }
+  },
+  "mounts": [
+    "source=lazztech-boilerplate-node_modules,target=${containerWorkspaceFolder}/node_modules,type=volume"
+  ]
+}

.dockerignore

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+node_modules
+dist
+data
+.git
+.github
+.vscode
+.devcontainer
+*.md
+*.log
+.env.local
+.env.*.local

.vscode/launch.json

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+{
+  "version": "0.2.0",
+  "configurations": [
+    {
+      "type": "node",
+      "request": "launch",
+      "name": "Debug NestJS",
+      "runtimeExecutable": "npm",
+      "runtimeArgs": ["run", "start:debug"],
+      "console": "integratedTerminal",
+      "serverReadyAction": {
+        "pattern": "Nest application successfully started",
+        "uriFormat": "http://localhost:%s",
+        "action": "openExternally"
+      }
+    },
+    {
+      "type": "node",
+      "request": "attach",
+      "name": "Attach to NestJS",
+      "port": 9229,
+      "restart": true,
+      "skipFiles": ["<node_internals>/**"]
+    }
+  ]
+}