Add Docker deployment for Unraid

- Add Dockerfile.unraid with multi-stage build (builds inside container)
- Add docker-compose.unraid.yml for easy deployment
- Add build-and-push.sh script for building and pushing to Gitea registry
- Update root redirect to /unraid dashboard

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

Dockerfile.unraid

@@ -0,0 +1,105 @@
+# Multi-stage Dockerfile for Homarr Unraid UI
+# Builds entirely inside Docker to avoid native module issues
+
+# Build stage
+FROM node:20.2.0-slim AS builder
+
+WORKDIR /app
+
+# Install build dependencies
+RUN apt-get update && apt-get install -y \
+    python3 \
+    make \
+    g++ \
+    git \
+    openssl \
+    && rm -rf /var/lib/apt/lists/*
+
+# Copy package files
+COPY package.json yarn.lock ./
+COPY .yarnrc.yml ./
+COPY .yarn ./.yarn
+
+# Install dependencies
+RUN yarn install --immutable
+
+# Copy source code
+COPY . .
+
+# Build the application
+ENV SKIP_ENV_VALIDATION=1
+ENV NEXTAUTH_SECRET=build-time-secret
+ENV DATABASE_URL=file:build.sqlite
+RUN yarn build
+
+# Production stage
+FROM node:20.2.0-slim
+
+WORKDIR /app
+
+# Define node.js environment variables
+ARG PORT=7575
+
+ENV NEXT_TELEMETRY_DISABLED=1
+ENV NODE_ENV=production
+ENV NODE_OPTIONS='--no-experimental-fetch'
+
+# Copy built application from builder
+COPY --from=builder /app/next.config.js ./
+COPY --from=builder /app/public ./public
+COPY --from=builder /app/package.json ./temp_package.json
+COPY --from=builder /app/yarn.lock ./temp_yarn.lock
+COPY --from=builder /app/.next/standalone ./
+COPY --from=builder /app/.next/static ./.next/static
+COPY --from=builder /app/scripts/run.sh ./scripts/run.sh
+COPY --from=builder /app/drizzle ./drizzle
+COPY --from=builder /app/drizzle/migrate ./migrate
+COPY --from=builder /app/tsconfig.json ./migrate/tsconfig.json
+COPY --from=builder /app/cli ./cli
+
+RUN chmod +x ./scripts/run.sh
+RUN mkdir -p /data
+
+# Install runtime dependencies
+RUN apt-get update && apt-get install -y openssl wget && rm -rf /var/lib/apt/lists/*
+
+# Move node_modules to temp location to avoid overwriting
+RUN mv node_modules _node_modules
+RUN rm package.json
+
+# Install dependencies for migration
+RUN cp ./migrate/package.json ./package.json
+RUN yarn install --production=false
+
+# Copy better_sqlite3 build for current platform
+RUN cp /app/node_modules/better-sqlite3/build/Release/better_sqlite3.node /app/_node_modules/better-sqlite3/build/Release/better_sqlite3.node || true
+
+# Copy node_modules for migration to migrate folder
+RUN mv node_modules ./migrate/node_modules
+
+# Restore app node_modules
+RUN mv _node_modules node_modules
+
+# Setup CLI
+RUN echo '#!/bin/bash\nnode /app/cli/cli.js "$@"' > /usr/bin/homarr
+RUN chmod +x /usr/bin/homarr
+RUN cd /app/cli && yarn install --production || true
+
+# Expose the default application port
+EXPOSE $PORT
+ENV PORT=${PORT}
+
+# Environment defaults
+ENV DATABASE_URL="file:/data/db.sqlite"
+ENV AUTH_TRUST_HOST="true"
+ENV PORT=7575
+ENV NEXTAUTH_SECRET=NOT_IN_USE_BECAUSE_JWTS_ARE_UNUSED
+
+# Health check
+HEALTHCHECK --interval=10s --timeout=5s --start-period=5s --retries=3 \
+    CMD wget --no-verbose --tries=1 --spider http://localhost:${PORT} || exit 1
+
+VOLUME [ "/app/data/configs" ]
+VOLUME [ "/data" ]
+
+ENTRYPOINT ["sh", "./scripts/run.sh"]