chore: remove proto codegen from prod Dockerfiles

Dockerfile.prod

@@ -3,23 +3,14 @@ FROM golang:1.24-alpine AS builder
 WORKDIR /app
 
 ENV GOPROXY=https://goproxy.cn,direct
-
-RUN apk add --no-cache protobuf
-RUN go install google.golang.org/protobuf/cmd/protoc-gen-go@v1.36.5 && \
-    go install google.golang.org/grpc/cmd/protoc-gen-go-grpc@v1.5.1
+ENV GOPRIVATE=git.yoresee.cc/YoreseeDoc
 
 COPY backend/go.mod backend/go.sum ./backend/
 COPY backend ./backend
-COPY proto ./proto
 
 WORKDIR /app/backend
 
 RUN go mod download
-RUN mkdir -p /app/backend/pkg/gen && \
-    protoc -I /app/proto \
-      --go_out=/app/backend/pkg/gen --go_opt=paths=source_relative \
-      --go-grpc_out=/app/backend/pkg/gen --go-grpc_opt=paths=source_relative \
-      /app/proto/yoresee_doc/v1/yoresee_doc.proto
 RUN go mod tidy
 RUN CGO_ENABLED=0 go build -p 1 -o main.out cmd/main.go && \
     CGO_ENABLED=0 go build -p 1 -o migrate.out ./cmd/migrate && \