phase 2 initial test

Dockerfile

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+# ── Stage 1: Build frontend ───────────────────────────────────────────────────
+FROM node:22-alpine AS frontend-builder
+WORKDIR /app/frontend
+RUN npm install -g pnpm
+COPY frontend/package.json frontend/pnpm-lock.yaml ./
+RUN pnpm install --frozen-lockfile
+COPY frontend/ ./
+RUN pnpm build
+
+# ── Stage 2: Build Go binary ──────────────────────────────────────────────────
+FROM golang:1.24-alpine AS go-builder
+RUN apk add --no-cache git
+WORKDIR /app
+COPY go.mod go.sum ./
+RUN go mod download
+COPY . .
+COPY --from=frontend-builder /app/frontend/dist ./web/dist
+RUN CGO_ENABLED=0 GOOS=linux go build -ldflags="-s -w" -o /forgebucket ./cmd/forgebucket
+
+# ── Stage 3: Minimal runtime ──────────────────────────────────────────────────
+FROM alpine:3.21
+RUN apk add --no-cache git ca-certificates tzdata
+WORKDIR /app
+COPY --from=go-builder /forgebucket ./forgebucket
+EXPOSE 8080
+ENTRYPOINT ["./forgebucket"]