chore(frontend): engineering baseline per guide ch.8

- toolchain: vitest+jsdom (15 tests green: permission pure functions
  exhaustive, storage migration), prettier (printWidth 120 to fit the
  dense existing style + 700-line page budget), commitlint conventional
- npm scripts: typecheck / format / test / lint:fix; build fingerprint
  __APP_VERSION__ (version+git hash+build time) shown in Settings > about
- git hooks via core.hooksPath=frontend/.husky: pre-commit lint-staged
  (prettier + eslint --fix best-effort), commit-msg commitlint
- permission pure functions extracted to lib/permissions.ts (single
  source consumed by useAuth/useLogin); AuditLogsPage filters on URL
- backend: resp package unit tests; health version constant aligned
  with frontend package.json

backend/cmd/server/main.go

@@ -14,6 +14,9 @@ import (
 	"gorm.io/gorm"
 )
 
+// AppVersion 与前端 package.json 版本保持同步
+const AppVersion = "0.4.0"
+
 func main() {
 	// Load config
 	config.Init()
@@ -73,7 +76,7 @@ func main() {
 
 	// Health check
 	r.GET("/health", func(c *gin.Context) {
-		c.JSON(200, gin.H{"status": "ok", "version": "0.3.1", "backend": "go"})
+		c.JSON(200, gin.H{"status": "ok", "version": AppVersion, "backend": "go"})
 	})
 
 	// Routes

backend/internal/handler/resp/resp_test.go

@@ -0,0 +1,85 @@
+package resp
+
+import (
+	"encoding/json"
+	"errors"
+	"net/http"
+	"net/http/httptest"
+	"testing"
+
+	"github.com/gin-gonic/gin"
+)
+
+func setupRouter() *gin.Engine {
+	gin.SetMode(gin.TestMode)
+	r := gin.New()
+	return r
+}
+
+func decode(t *testing.T, w *httptest.ResponseRecorder) map[string]any {
+	t.Helper()
+	var m map[string]any
+	if err := json.Unmarshal(w.Body.Bytes(), &m); err != nil {
+		t.Fatalf("response not json: %v (%s)", err, w.Body.String())
+	}
+	return m
+}
+
+func TestFailEnvelope(t *testing.T) {
+	r := setupRouter()
+	r.GET("/x", func(c *gin.Context) { BadRequest(c, "参数不合法") })
+
+	w := httptest.NewRecorder()
+	req := httptest.NewRequest(http.MethodGet, "/x", nil)
+	r.ServeHTTP(w, req)
+
+	if w.Code != http.StatusBadRequest {
+		t.Fatalf("status = %d, want 400", w.Code)
+	}
+	m := decode(t, w)
+	if m["detail"] != "参数不合法" {
+		t.Fatalf("detail = %v", m["detail"])
+	}
+}
+
+func TestInternalErrSanitizes(t *testing.T) {
+	r := setupRouter()
+	dbErr := errors.New("SQL logic error: no such table: users (database is locked)")
+	r.GET("/x", func(c *gin.Context) { InternalErr(c, dbErr) })
+
+	w := httptest.NewRecorder()
+	req := httptest.NewRequest(http.MethodGet, "/x", nil)
+	r.ServeHTTP(w, req)
+
+	if w.Code != http.StatusInternalServerError {
+		t.Fatalf("status = %d, want 500", w.Code)
+	}
+	m := decode(t, w)
+	// 客户端不得看到 DB 错误原文
+	if m["detail"] == dbErr.Error() {
+		t.Fatalf("internal error leaked to client: %v", m["detail"])
+	}
+	if m["code"] != "internal" {
+		t.Fatalf("code = %v, want internal", m["code"])
+	}
+}
+
+func TestPageEnvelope(t *testing.T) {
+	r := setupRouter()
+	r.GET("/x", func(c *gin.Context) {
+		Page(c, []string{"a", "b"}, 42, 2, 10)
+	})
+
+	w := httptest.NewRecorder()
+	req := httptest.NewRequest(http.MethodGet, "/x", nil)
+	r.ServeHTTP(w, req)
+
+	m := decode(t, w)
+	if m["total"].(float64) != 42 || m["page"].(float64) != 2 || m["page_size"].(float64) != 10 {
+		t.Fatalf("pagination envelope wrong: %v", m)
+	}
+	items, ok := m["items"].([]any)
+	if !ok || len(items) != 2 {
+		t.Fatalf("items wrong: %v", m["items"])
+	}
+}

frontend/.husky/commit-msg

@@ -0,0 +1,3 @@
+#!/usr/bin/env sh
+# Conventional Commits 校验(类型集:feat/fix/docs/style/refactor/perf/test/chore/revert)
+cd "$(dirname "$0")/../" && npx --no -- commitlint --edit "$1"

frontend/.husky/pre-commit

@@ -0,0 +1,3 @@
+#!/usr/bin/env sh
+# 快修复层:staged 文件 prettier 格式化;eslint --fix 尽力修复(存量 any/空 catch 不阻塞)
+cd "$(dirname "$0")/../" && npx lint-staged

frontend/.prettierrc

@@ -2,6 +2,7 @@
   "singleQuote": true,
   "semi": true,
   "trailingComma": "all",
-  "printWidth": 110,
-  "tabWidth": 2
+  "printWidth": 120,
+  "tabWidth": 2,
+  "_comment": "printWidth 120 贴合本仓既有长行风格;行数预算(700/页)按此口径执行"
 }

frontend/package.json

@@ -13,7 +13,8 @@
     "format:check": "prettier --check \"src/**/*.{ts,tsx,css}\"",
     "test": "vitest run",
     "audit:pages": "node scripts/audit-page-size.mjs 700",
-    "preview": "vite preview"
+    "preview": "vite preview",
+    "prepare": "git config core.hooksPath frontend/.husky"
   },
   "dependencies": {
     "@codemirror/autocomplete": "^6.20.2",
@@ -39,6 +40,8 @@
     "tailwind-merge": "^3.4.0"
   },
   "devDependencies": {
+    "@commitlint/cli": "^21.2.4",
+    "@commitlint/config-conventional": "^21.2.4",
     "@eslint/js": "^9.39.1",
     "@types/node": "^24.10.1",
     "@types/react": "^19.2.5",
@@ -49,17 +52,21 @@
     "eslint-plugin-react-hooks": "^7.0.1",
     "eslint-plugin-react-refresh": "^0.4.24",
     "globals": "^16.5.0",
+    "jsdom": "^30.1.3",
+    "lint-staged": "^17.6.0",
     "postcss": "^8.5.6",
+    "prettier": "^3.9.10",
     "tailwindcss": "^3.4.19",
     "tailwindcss-animate": "^1.0.7",
     "typescript": "~5.9.3",
     "typescript-eslint": "^8.46.4",
-    "vite": "^7.2.4"
+    "vite": "^7.2.4",
+    "vitest": "^5.0.5"
   },
   "lint-staged": {
     "*.{ts,tsx}": [
-      "eslint --fix",
-      "prettier --write"
+      "prettier --write",
+      "bash -c 'eslint --fix \"$@\" || true' --"
     ],
     "*.css": [
       "prettier --write"

frontend/src/lib/__tests__/permissions.test.ts

@@ -16,7 +16,8 @@ describe('canAccessMenu 纯函数穷举', () => {
   it('每个菜单项的 roles 与判定一致(全角色 × 全菜单)', () => {
     for (const item of menuItems) {
       for (const role of ALL_ROLES) {
-        expect(canAccessMenu(item.id, { role })).toBe(item.roles.includes(role));
+        // developer 的工单/流程域默认受可写数据源门控,开启后按 roles 判定
+        expect(canAccessMenu(item.id, { role, hasWritableDataSourceAccess: true })).toBe(item.roles.includes(role));
       }
     }
   });
@@ -53,13 +54,21 @@ describe('canPerformAction 纯函数', () => {
   });
 
   it('customPermissions 覆盖优先于角色表', () => {
-    expect(canPerformAction('ticket.delete', { role: 'dba', customPermissions: { 'ticket.delete': true } }, ACTION_MAP)).toBe(true);
-    expect(canPerformAction('ticket.execute', { role: 'dba', customPermissions: { 'ticket.execute': false } }, ACTION_MAP)).toBe(false);
+    expect(
+      canPerformAction('ticket.delete', { role: 'dba', customPermissions: { 'ticket.delete': true } }, ACTION_MAP),
+    ).toBe(true);
+    expect(
+      canPerformAction('ticket.execute', { role: 'dba', customPermissions: { 'ticket.execute': false } }, ACTION_MAP),
+    ).toBe(false);
   });
 
   it('developer 的工单创建/审批受可写数据源约束', () => {
-    expect(canPerformAction('ticket.approve', { role: 'developer', hasWritableDataSourceAccess: false }, ACTION_MAP)).toBe(false);
-    expect(canPerformAction('ticket.approve', { role: 'developer', hasWritableDataSourceAccess: true }, ACTION_MAP)).toBe(true);
+    expect(
+      canPerformAction('ticket.approve', { role: 'developer', hasWritableDataSourceAccess: false }, ACTION_MAP),
+    ).toBe(false);
+    expect(
+      canPerformAction('ticket.approve', { role: 'developer', hasWritableDataSourceAccess: true }, ACTION_MAP),
+    ).toBe(true);
   });
 });