chore: Add devcontainer.json, Dockerfile and compose.yaml for self-bu…

…ild development container

.devcontainer/self-build/Dockerfile

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+FROM mcr.microsoft.com/devcontainers/javascript-node:1-20-bookworm
+
+RUN npm uninstall -g pnpm && corepack enable pnpm
+
+# [Optional] Uncomment this section to install additional OS packages.
+# RUN apt-get update && export DEBIAN_FRONTEND=noninteractive \
+#     && apt-get -y install --no-install-recommends <your-package-list-here>
+
+# [Optional] Uncomment if you want to install an additional version of node using nvm
+# ARG EXTRA_NODE_VERSION=10
+# RUN su node -c "source /usr/local/share/nvm/nvm.sh && nvm install ${EXTRA_NODE_VERSION}"
+
+# [Optional] Uncomment if you want to install more global node modules
+# RUN su node -c "npm install -g <your-package-list-here>"

.devcontainer/self-build/compose.yaml

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+
+services:
+  app:
+    build: 
+      context: .
+      dockerfile: Dockerfile
+
+    volumes:
+      - ../../..:/workspaces:cached
+
+    # Overrides default command so things don't shut down after the process ends.
+    command: sleep infinity
+
+    # Runs app on the same network as the database container, allows "forwardPorts" in devcontainer.json function.
+    network_mode: service:db
+
+    # Use "forwardPorts" in **devcontainer.json** to forward an app port locally. 
+    # (Adding the "ports" property to this file will not forward from a Codespace.)
+
+  db:
+    image: postgres:latest
+    restart: unless-stopped
+    volumes:
+      - postgres-data:/var/lib/postgresql/data
+    environment:
+      POSTGRES_PASSWORD: postgres
+      POSTGRES_USER: postgres
+      POSTGRES_DB: postgres
+
+    # Add "forwardPorts": ["5432"] to **devcontainer.json** to forward PostgreSQL locally.
+    # (Adding the "ports" property to this file will not forward from a Codespace.)
+
+volumes:
+  postgres-data:

.devcontainer/self-build/devcontainer.json

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+// For format details, see https://aka.ms/devcontainer.json. For config options, see the
+// README at: https://github.com/devcontainers/templates/tree/main/src/javascript-node-postgres
+{
+  "name": "Node.js & PostgreSQL",
+  "dockerComposeFile": "compose.yaml",
+  "service": "app",
+  "workspaceFolder": "/workspaces/${localWorkspaceFolderBasename}",
+
+  // Features to add to the dev container. More info: https://containers.dev/features.
+  // "features": {},
+
+  // Use 'forwardPorts' to make a list of ports inside the container available locally.
+  // This can be used to network with other containers or with the host.
+  // "forwardPorts": [3000, 5432],
+
+  // Use 'postCreateCommand' to run commands after the container is created.
+  "postCreateCommand": "corepack prepare && pnpm i --frozen-lockfile",
+
+  // Configure tool-specific properties.
+  "customizations": {
+    "vscode": {
+      "settings": {
+        "editor.defaultFormatter": "biomejs.biome",
+        "editor.formatOnSave": true
+      },
+      "extensions": ["biomejs.biome"]
+    }
+  },
+
+  "remoteEnv": {
+    "POSTGRES_URL": "postgresql://postgres:postgres@localhost:5432/postgres",
+    "AUDIT_LOG_WEBHOOK": "https://httpbin.org/status/200"
+  }
+
+  // Uncomment to connect as root instead. More info: https://aka.ms/dev-containers-non-root.
+  // "remoteUser": "root"
+}