Simplify admin publishing pipeline

backend/cmd/import-articles/main.go

@@ -1,33 +0,0 @@
-package main
-
-import (
-	"flag"
-	"fmt"
-	"os"
-
-	"osaet/backend/internal/postimport"
-)
-
-func main() {
-	fs := flag.NewFlagSet("import-articles", flag.ExitOnError)
-	file := fs.String("file", "articles.csv", "CSV file path")
-	overwrite := fs.Bool("overwrite", false, "overwrite existing markdown files")
-	postsDir := fs.String("posts-dir", "content/posts", "posts output directory relative to project root")
-	if err := fs.Parse(os.Args[1:]); err != nil {
-		fmt.Fprintln(os.Stderr, "error:", err)
-		os.Exit(1)
-	}
-
-	result, err := postimport.Import(postimport.Options{
-		CSVPath:    *file,
-		PostsDir:   *postsDir,
-		Overwrite:  *overwrite,
-		WorkingDir: "",
-	})
-	if err != nil {
-		fmt.Fprintln(os.Stderr, "error:", err)
-		os.Exit(1)
-	}
-
-	fmt.Printf("imported %d post(s), skipped %d existing file(s), skipped %d non-post row(s)\n", result.Imported, result.SkippedExisting, result.SkippedNonPost)
-}