trips) migrate sqlite and runtime to bun

Dockerfile

@@ -1,33 +1,28 @@
 # ── Build stage ────────────────────────────────────────────────────────────────
-FROM node:22-bookworm-slim AS builder
+FROM oven/bun:1 AS builder
 
 WORKDIR /app
 
-# Native deps required for building better-sqlite3 via node-gyp
-RUN apt-get update \
-	&& apt-get install -y --no-install-recommends python3 make g++ \
-	&& rm -rf /var/lib/apt/lists/*
-
 # Copy dependency manifests first for better layer caching
-COPY package.json ./
+COPY package.json bun.lock ./
 
 # Install all deps (including devDependencies needed for the build).
-RUN npm install
+RUN bun install --frozen-lockfile
 
 # Copy source and build
 COPY . .
-RUN npm run build
+RUN bun run build
 
-# Prune to production-only deps, recompiling native modules for Linux
-RUN npm prune --omit=dev
+# Prune to production-only deps
+RUN bun install --frozen-lockfile --production
 
 # ── Runtime stage ───────────────────────────────────────────────────────────────
-FROM node:22-bookworm-slim AS runtime
+FROM oven/bun:1 AS runtime
 
 WORKDIR /app
 
 # Create a non-root user to run the app
-RUN groupadd --system trips && useradd --system --gid trips trips
+RUN addgroup -S trips && adduser -S trips -G trips
 
 # Copy the built app and production node_modules from the builder
 COPY --from=builder /app/build ./build
@@ -45,4 +40,4 @@ ENV PORT=3000
 
 EXPOSE 3000
 
-CMD ["node", "build"]
+CMD ["bun", "build/index.js"]