Polish UX: auto-redirect on create, fix design consistency

- createModule now redirects to module page after creation
- createLesson now redirects to lesson editor after creation
- Regenerate Prisma client to fix missing types (category, accessLog, expiresAt)
- Rewrite sortable-modules/lessons with Second Brain design tokens (remove amber/slate)
- Rewrite lesson-editor toolbar and toggle with design tokens
- Fix register page/form: replace amber theme with card-aubade design

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

src/app/admin/courses/[courseId]/actions.ts

@@ -4,6 +4,7 @@ import { prisma } from "@/lib/prisma";
 import { headers } from "next/headers";
 import { auth } from "@/lib/auth";
 import { revalidatePath } from "next/cache";
+import { redirect } from "next/navigation";
 
 async function requireAdmin() {
   const session = await auth.api.getSession({ headers: await headers() });
@@ -17,8 +18,9 @@ export async function createModule(courseId: string, formData: FormData) {
   await requireAdmin();
   const title = formData.get("title") as string;
   const count = await prisma.module.count({ where: { courseId } });
-  await prisma.module.create({ data: { courseId, title, order: count } });
+  const mod = await prisma.module.create({ data: { courseId, title, order: count } });
   revalidatePath(`/admin/courses/${courseId}`);
+  redirect(`/admin/courses/${courseId}/modules/${mod.id}`);
 }
 
 export async function updateModule(moduleId: string, courseId: string, formData: FormData) {

src/app/admin/courses/[courseId]/modules/[moduleId]/actions.ts

@@ -4,6 +4,7 @@ import { prisma } from "@/lib/prisma";
 import { headers } from "next/headers";
 import { auth } from "@/lib/auth";
 import { revalidatePath } from "next/cache";
+import { redirect } from "next/navigation";
 
 async function requireAdmin() {
   const session = await auth.api.getSession({ headers: await headers() });
@@ -14,8 +15,9 @@ export async function createLesson(moduleId: string, courseId: string, formData:
   await requireAdmin();
   const title = formData.get("title") as string;
   const count = await prisma.lesson.count({ where: { moduleId } });
-  await prisma.lesson.create({ data: { moduleId, title, order: count } });
+  const lesson = await prisma.lesson.create({ data: { moduleId, title, order: count } });
   revalidatePath(`/admin/courses/${courseId}/modules/${moduleId}`);
+  redirect(`/admin/courses/${courseId}/modules/${moduleId}/lessons/${lesson.id}`);
 }
 
 export async function updateLesson(lessonId: string, courseId: string, moduleId: string, formData: FormData) {

src/app/admin/courses/[courseId]/modules/[moduleId]/page.tsx

@@ -1,7 +1,6 @@
 import { prisma } from "@/lib/prisma";
 import { notFound } from "next/navigation";
 import Link from "next/link";
-import { Badge } from "@/components/ui/badge";
 import { SortableLessons } from "@/components/admin/sortable-lessons";
 
 interface Props {
@@ -23,22 +22,25 @@ export default async function ModulePage({ params }: Props) {
 
   return (
     <div className="p-8 max-w-3xl">
-      <nav className="text-sm text-slate-400 mb-6">
-        <Link href="/admin/courses" className="hover:text-slate-600">Курсы</Link>
+      <nav className="text-xs mb-6 uppercase tracking-widest" style={{ color: "var(--muted-foreground)" }}>
+        <Link href="/admin/courses" className="hover:underline">Курсы</Link>
         <span className="mx-2">/</span>
-        <Link href={`/admin/courses/${courseId}`} className="hover:text-slate-600">{module.course.title}</Link>
+        <Link href={`/admin/courses/${courseId}`} className="hover:underline">{module.course.title}</Link>
         <span className="mx-2">/</span>
-        <span className="text-slate-700">{module.title}</span>
+        <span style={{ color: "var(--foreground)" }}>{module.title}</span>
       </nav>
 
-      <div className="flex items-center justify-between mb-6">
-        <div>
-          <h1 className="text-2xl font-semibold text-slate-800">{module.title}</h1>
-          <p className="text-slate-500 text-sm mt-0.5">{module.lessons.length} уроков</p>
-        </div>
+      <div className="mb-6">
+        <h1 className="text-2xl font-bold">{module.title}</h1>
+        <p className="text-sm mt-1" style={{ color: "var(--muted-foreground)" }}>
+          {module.lessons.length} {module.lessons.length === 1 ? "урок" : module.lessons.length < 5 ? "урока" : "уроков"}
+        </p>
       </div>
 
-      <section className="bg-white border border-slate-200 rounded-2xl p-6">
+      <section className="card-aubade p-6">
+        <p className="text-xs font-bold uppercase tracking-widest mb-5" style={{ color: "var(--muted-foreground)" }}>
+          Уроки модуля
+        </p>
         <SortableLessons courseId={courseId} moduleId={moduleId} lessons={module.lessons} />
       </section>
     </div>