Implement static file handler (foundation for #18)

.editorconfig

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+root = true
+
+[*]
+charset = utf-8
+end_of_line = lf
+indent_style = space
+indent_size = 4
+insert_final_newline = true
+trim_trailing_whitespace = true
+
+[*.yml]
+indent_size = 2
+
+[*.yaml]
+indent_size = 2

.github/workflows/ci.yml

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+name: CI Pipeline
+on:
+  push:
+    branches:
+      - main
+
+  pull_request:
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v5
+
+      - name: Setup Java 25
+        uses: actions/setup-java@v5.2.0
+        with:
+          distribution: 'temurin'
+          java-version: '25'
+          cache: 'maven'
+
+      - name: Run tests
+        run: ./mvnw -B test
+
+      - name: Run spotless checks
+        run: ./mvnw -B spotless:check

.github/workflows/docker-release.yml

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+name: Publish Docker Image
+on:
+  release:
+    types:
+      - created
+
+jobs:
+  publish:
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      packages: write
+
+    steps:
+      - name: Checkout repo
+        uses: actions/checkout@v6.0.2
+
+      - name: Setup QEMU
+        uses: docker/setup-qemu-action@v3
+
+      - name: Setup Docker BuildX
+        uses: docker/setup-buildx-action@v3
+
+      - name: Login to GHCR
+        uses: docker/login-action@v3
+        with:
+          registry: ghcr.io
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Extract Docker metadata
+        id: meta
+        uses: docker/metadata-action@v5
+        with:
+          images: ghcr.io/${{ github.repository_owner }}/project-webserver-juv25d
+          tags: type=ref,name=short
+          labels: org.opencontainers.image.source=${{ github.repository }}
+
+      - name: Build and push Docker image
+        uses: docker/build-push-action@v6
+        with:
+          context: .
+          push: true
+          platforms: linux/amd64,linux/arm64
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}
+

.mvn/wrapper/maven-wrapper.properties

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+wrapperVersion=3.3.4
+distributionType=only-script
+distributionUrl=https://repo.maven.apache.org/maven2/org/apache/maven/apache-maven/3.8.7/apache-maven-3.8.7-bin.zip

Dockerfile

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+FROM maven:3.9-eclipse-temurin-21 AS build
+
+WORKDIR /app
+
+COPY pom.xml pom.xml
+RUN mvn dependency:go-offline -B
+
+COPY src ./src
+RUN mvn clean package -DskipTests
+
+FROM eclipse-temurin:21-jre-alpine
+
+WORKDIR /app
+
+# might need to update this later when we have our explicit class names
+COPY --from=build /app/target/*.jar app.jar
+ENTRYPOINT ["java", "-jar", "app.jar"]