chore: add .devcontainer directory to jakarta jsp project directory

cmd/jws/projects/jakarta-jsp-todo/.devcontainer/.dockerignore

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+.git
+.github
+.settings
+target
+*.iml
+.idea
+.vscode
+node_modules

cmd/jws/projects/jakarta-jsp-todo/.devcontainer/.gitignore

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+# Maven
+target/
+!.mvn/wrapper/maven-wrapper.jar
+!**/src/main/**/target/
+!**/src/test/**/target/
+
+# IDE-spezifische Dateien
+.idea/
+*.iws
+*.iml
+*.ipr
+.vscode/
+.settings/
+.classpath
+.project
+.factorypath
+
+# Temporäre Dateien
+*.log
+*.tmp
+*.temp
+
+# Lokale Konfigurationsdateien
+src/main/resources/application-local.properties
+
+# Devcontainer Volumen
+.devcontainer/postgres-data/

cmd/jws/projects/jakarta-jsp-todo/.devcontainer/Dockerfile

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+FROM mcr.microsoft.com/devcontainers/java:1-21-bullseye
+
+ARG INSTALL_MAVEN="true"
+ARG MAVEN_VERSION=""
+
+ARG INSTALL_GRADLE="false"
+ARG GRADLE_VERSION=""
+
+RUN if [ "${INSTALL_MAVEN}" = "true" ]; then su vscode -c "umask 0002 && . /usr/local/sdkman/bin/sdkman-init.sh && sdk install maven \"${MAVEN_VERSION}\""; fi \
+  && if [ "${INSTALL_GRADLE}" = "true" ]; then su vscode -c "umask 0002 && . /usr/local/sdkman/bin/sdkman-init.sh && sdk install gradle \"${GRADLE_VERSION}\""; fi
+
+# [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 this line to install global node packages.
+# RUN su vscode -c "source /usr/local/share/nvm/nvm.sh && npm install -g <your-package-here>" 2>&1

cmd/jws/projects/jakarta-jsp-todo/.devcontainer/devcontainer.json

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+{
+  "name": "Java & PostgreSQL",
+  "dockerComposeFile": "docker-compose.yml",
+  "service": "app",
+  "workspaceFolder": "/workspaces/${localWorkspaceFolderBasename}",
+  "forwardPorts": [9080, 5432],
+  "postCreateCommand": "mvn clean install -DskipTests",
+  "remoteUser": "vscode"
+}

cmd/jws/projects/jakarta-jsp-todo/.devcontainer/docker-compose.yml

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+version: "3.8"
+
+volumes:
+  postgres-data:
+
+services:
+  app:
+    container_name: javadev
+    build:
+      context: .
+      dockerfile: Dockerfile
+    environment:
+      # NOTE: POSTGRES_DB/USER/PASSWORD should match values in db container
+      POSTGRES_PASSWORD: postgres
+      POSTGRES_USER: postgres
+      POSTGRES_DB: postgres
+      POSTGRES_HOSTNAME: postgresdb
+
+    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:
+    container_name: postgresdb
+    image: postgres:latest
+    restart: unless-stopped
+    volumes:
+      - postgres-data:/var/lib/postgresql/data
+    environment:
+      # NOTE: POSTGRES_DB/USER/PASSWORD should match values in app container
+      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.)