diff --git a/internal/plugins/webui/kernel_buttons_render_test.go b/internal/plugins/webui/kernel_buttons_render_test.go
index 9529bbb4..0daebabc 100644
--- a/internal/plugins/webui/kernel_buttons_render_test.go
+++ b/internal/plugins/webui/kernel_buttons_render_test.go
@@ -48,7 +48,11 @@ func TestKernelButtonsRenderedInPage(t *testing.T) {
 // 判定它处于顶层。jsdom 里的行为测试做不到这点（node 不强求），
 // 而浏览器里 onclick 走的是全局查找。
 func TestKernelFunctionsAreGlobal(t *testing.T) {
-	src := string(mustReadEmbedded(t, "dashboard.js"))
+	js, err := FrontendAsset("dashboard.js")
+	if err != nil {
+		t.Fatalf("读 dashboard.js: %v", err)
+	}
+	src := string(js)
 
 	for _, fn := range []string{"kernelRestart", "kernelShutdown", "doKernelControl", "waitForKernelBack"} {
 		// 顶层定义：行首（可有 async 前缀），不带缩进
diff --git a/internal/plugins/webui/dashboard_js_scope_test.go b/internal/plugins/webui/test/dashboard_js_scope_test.go
similarity index 91%
rename from internal/plugins/webui/dashboard_js_scope_test.go
rename to internal/plugins/webui/test/dashboard_js_scope_test.go
index c2867f19..6f3b5ae4 100644
--- a/internal/plugins/webui/dashboard_js_scope_test.go
+++ b/internal/plugins/webui/test/dashboard_js_scope_test.go
@@ -1,4 +1,4 @@
-package webui
+package test
 
 import (
 	"os"
@@ -43,15 +43,7 @@ import (
 // 判据做法：用 node 在沙箱里把 dashboard.js 跑一遍，抓未捕获异常。
 // node 不在时 t.Skip（CI 里 GO 环境可能没有 node）。
 
-// dashboardJSSource 取出待测脚本文本（测试内复用以免重复读 embed）。
-func dashboardJSSource(t *testing.T) string {
-	t.Helper()
-	b, err := dashboardFS.ReadFile("dashboard.js")
-	if err != nil {
-		t.Fatalf("读 dashboard.js: %v", err)
-	}
-	return string(b)
-}
+// dashboardJSSource 见 helpers_test.go（迁移时去重）。
 
 // TestDashboardJS_HasNoReferenceErrorInStrictMode 用 node 跑真脚本抓 ReferenceError。
 //
@@ -350,63 +342,4 @@ func TestDashboardJS_NoWriteOnlyGlobals(t *testing.T) {
 	}
 }
 
-func stripJSComments(s string) string {
-	var b strings.Builder
-	b.Grow(len(s))
-	inLine, inBlock := false, false
-	var inStr byte
-	for i := 0; i < len(s); i++ {
-		c := s[i]
-		if inLine {
-			if c == '\n' {
-				inLine = false
-				b.WriteByte(c)
-			}
-			continue
-		}
-		if inBlock {
-			if c == '*' && i+1 < len(s) && s[i+1] == '/' {
-				inBlock = false
-				i++
-			}
-			continue
-		}
-		if c == '\n' {
-			b.WriteByte(c)
-			continue
-		}
-		if inStr != 0 {
-			b.WriteByte(c)
-			if c == '\\' {
-				if i+1 < len(s) {
-					b.WriteByte(s[i+1])
-					i++
-				}
-				continue
-			}
-			if c == inStr {
-				inStr = 0
-			}
-			continue
-		}
-		if c == '"' || c == '\'' || c == '`' {
-			// 反引号也是字符串定界符，但它可跨行 —— 本判据只统计标识符，
-			// 跨行模板串里出现标识符属正常，此处按普通字符串处理即可。
-			inStr = c
-			b.WriteByte(c)
-			continue
-		}
-		if c == '/' && i+1 < len(s) && s[i+1] == '/' {
-			inLine = true
-			i++
-			continue
-		}
-		if c == '/' && i+1 < len(s) && s[i+1] == '*' {
-			inBlock = true
-			i++
-			continue
-		}
-		b.WriteByte(c)
-	}
-	return b.String()
-}
+// stripJSComments 见 helpers_test.go（迁移时去重）。
diff --git a/internal/plugins/webui/embed_read_test.go b/internal/plugins/webui/test/embed_read_test.go
similarity index 52%
rename from internal/plugins/webui/embed_read_test.go
rename to internal/plugins/webui/test/embed_read_test.go
index fb994ca4..e0e203c6 100644
--- a/internal/plugins/webui/embed_read_test.go
+++ b/internal/plugins/webui/test/embed_read_test.go
@@ -1,10 +1,13 @@
-package webui
+package test
 
-import "testing"
+import (
+	"github.com/JianFeeeee/HologramAgent/internal/plugins/webui"
+	"testing"
+)
 
 func mustReadEmbedded(t *testing.T, name string) []byte {
 	t.Helper()
-	b, err := dashboardFS.ReadFile(name)
+	b, err := webui.FrontendAsset(name)
 	if err != nil {
 		t.Fatalf("读 embed %s: %v", name, err)
 	}
diff --git a/internal/plugins/webui/test/helpers_test.go b/internal/plugins/webui/test/helpers_test.go
index 4d9dca16..55e27761 100644
--- a/internal/plugins/webui/test/helpers_test.go
+++ b/internal/plugins/webui/test/helpers_test.go
@@ -6,10 +6,9 @@ package test
 // 而在"测试与源码分离"之后，它们不能再从包内符号借用。
 
 import (
+	"github.com/JianFeeeee/HologramAgent/internal/plugins/webui"
 	"strings"
 	"testing"
-
-	"github.com/JianFeeeee/HologramAgent/internal/plugins/webui"
 )
 
 // stripJSComments 剥掉 // 行注释与 /* */ 块注释（粗粒度，但足够用于词频统计）。
diff --git a/internal/plugins/webui/mascot_asset_test.go b/internal/plugins/webui/test/mascot_asset_test.go
similarity index 97%
rename from internal/plugins/webui/mascot_asset_test.go
rename to internal/plugins/webui/test/mascot_asset_test.go
index acfbec15..b152b470 100644
--- a/internal/plugins/webui/mascot_asset_test.go
+++ b/internal/plugins/webui/test/mascot_asset_test.go
@@ -1,9 +1,10 @@
-package webui
+package test
 
 import (
 	"bytes"
 	"encoding/binary"
 	"errors"
+	"github.com/JianFeeeee/HologramAgent/internal/plugins/webui"
 	"testing"
 )
 
@@ -21,7 +22,7 @@ import (
 // 都在看。所以用容器格式本身来判定：判据看的是 VP8X 的 Alpha 标志位与
 // ALPH chunk 是否**一致存在**，而不是「渲染出来像不像透明」。
 func TestMascotAssetHasRealAlpha(t *testing.T) {
-	data, err := dashboardFS.ReadFile("mascot.webp")
+	data, err := webui.FrontendAsset("mascot.webp")
 	if err != nil {
 		t.Fatalf("读 mascot.webp: %v", err)
 	}