move workspace templates to repo root and auto-sync into embed path at build time

Dockerfile.test

@@ -0,0 +1,13 @@
+FROM golang:alpine AS builder
+WORKDIR /app
+COPY go.mod go.sum ./
+RUN go mod download
+COPY . .
+# Sync root workspace templates into embed path before build
+RUN rm -rf ./cmd/clawgo/workspace && mkdir -p ./cmd/clawgo/workspace && cp -a ./workspace/. ./cmd/clawgo/workspace/
+RUN go build -o clawgo ./cmd/clawgo
+
+FROM alpine:latest
+WORKDIR /root/
+COPY --from=builder /app/clawgo .
+CMD ["./clawgo"]