refactor: split backend into standalone server project

Remove embedded frontend and workflow editor assets, add standalone API deployment configuration, and retain the current backend service updates.

cmd/enums/generator.go

@@ -2,6 +2,7 @@ package main
 
 import (
 	"bytes"
+	"flag"
 	"fmt"
 	"go/ast"
 	"go/token"
@@ -15,9 +16,9 @@ import (
 )
 
 const (
-	enumsPkgName = "enums"
-	enumsDir     = "internal/pkg/enums"
-	outputPath   = "web/lib/generated/enums.ts"
+	enumsPkgName      = "enums"
+	enumsDir          = "internal/pkg/enums"
+	defaultOutputPath = "dist/enums.ts"
 )
 
 type enumValueType string
@@ -47,15 +48,18 @@ type enumDef struct {
 }
 
 func main() {
+	outputPath := flag.String("output", defaultOutputPath, "TypeScript enum output path")
+	flag.Parse()
+
 	defs, err := parseEnums(enumsDir)
 	if err != nil {
 		panic(err)
 	}
 	content := buildTSFile(defs)
-	if err := os.MkdirAll(filepath.Dir(outputPath), 0o755); err != nil {
+	if err := os.MkdirAll(filepath.Dir(*outputPath), 0o755); err != nil {
 		panic(err)
 	}
-	if err := os.WriteFile(outputPath, []byte(content), 0o644); err != nil {
+	if err := os.WriteFile(*outputPath, []byte(content), 0o644); err != nil {
 		panic(err)
 	}
 }