refactor(deploy): consolidate configuration and reorganize docker files

docker/Dockerfile.mcp

@@ -0,0 +1,18 @@
+FROM golang:1.25-alpine AS build
+
+WORKDIR /src
+COPY go.mod go.sum ./
+RUN go mod download
+
+COPY . .
+ARG TARGETARCH
+ARG COMMIT_HASH=unknown
+RUN CGO_ENABLED=0 GOOS=linux GOARCH=${TARGETARCH:-amd64} \
+    go build -trimpath -ldflags "-s -w -X github.com/memohai/memoh/internal/version.CommitHash=${COMMIT_HASH}" -o /out/mcp ./cmd/mcp
+
+FROM alpine:latest
+RUN apk add --no-cache grep
+WORKDIR /app
+COPY --from=build /out/mcp /opt/mcp
+COPY cmd/mcp/template /opt/mcp-template
+ENTRYPOINT ["/bin/sh","-lc","bootstrap(){ [ -e /app/mcp ] || { mkdir -p /app; [ -f /opt/mcp ] && cp -a /opt/mcp /app/mcp 2>/dev/null || true; }; }; bootstrap; if [ -x /app/mcp ]; then exec /app/mcp \"$@\"; fi; exec /opt/mcp \"$@\"","--"]