frontend: kanal silme özelliği

Kanal detay sayfasına "Kanalı Sil" eklendi — kanal + tüm session/
segment/candidate geçmişini (dosyalar dahil) siler, ana sayfaya
yönlendirir. Yanlışlıkla/test amaçlı eklenen kanalları temizlemek için.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

apps/frontend/app/actions.ts

@@ -3,6 +3,7 @@
 import { unlink } from "node:fs/promises";
 import { prisma } from "@streamclipper/db";
 import { revalidatePath } from "next/cache";
+import { redirect } from "next/navigation";
 
 export async function addChannel(formData: FormData) {
   const name = String(formData.get("name") ?? "").trim();
@@ -39,6 +40,25 @@ export async function deleteCandidateSegment(candidateId: string) {
   revalidatePath("/", "layout");
 }
 
+export async function deleteChannel(channelId: string) {
+  const sessions = await prisma.streamSession.findMany({
+    where: { channelId },
+    include: { segments: true },
+  });
+  const rawSegmentIds = sessions.flatMap((s) => s.segments.map((seg) => seg.id));
+  const filePaths = sessions.flatMap((s) => s.segments.map((seg) => seg.filePath));
+
+  await prisma.candidateSegment.deleteMany({ where: { rawSegmentId: { in: rawSegmentIds } } });
+  await prisma.rawSegment.deleteMany({ where: { sessionId: { in: sessions.map((s) => s.id) } } });
+  await prisma.streamSession.deleteMany({ where: { channelId } });
+  await prisma.channel.delete({ where: { id: channelId } });
+
+  await Promise.all(filePaths.map((p) => unlink(p).catch(() => {})));
+
+  revalidatePath("/", "layout");
+  redirect("/");
+}
+
 export async function updateYtdlpCookies(formData: FormData) {
   const value = String(formData.get("cookies") ?? "").trim();
 

apps/frontend/app/channels/[id]/page.tsx

@@ -2,7 +2,7 @@ import { notFound } from "next/navigation";
 import Link from "next/link";
 import { prisma } from "@streamclipper/db";
 import { fetchChannelStatuses } from "../../../lib/apiDaemon";
-import { deleteRawSegment, deleteCandidateSegment } from "../../actions";
+import { deleteRawSegment, deleteCandidateSegment, deleteChannel } from "../../actions";
 import { DeleteButton } from "../../components/DeleteButton";
 
 export const dynamic = "force-dynamic";
@@ -51,7 +51,12 @@ export default async function ChannelDetailPage({ params }: { params: Promise<{
     <>
       <p><Link href="/">&larr; Kanal Durumu</Link></p>
 
-      <h1>{channel.name}</h1>
+      <div className="card-head">
+        <h1>{channel.name}</h1>
+        <form action={deleteChannel.bind(null, channel.id)}>
+          <DeleteButton confirmText="Bu kanalı ve tüm kayıt geçmişini silmek istediğine emin misin? Geri alınamaz." label="Kanalı Sil" />
+        </form>
+      </div>
       <p className="mono">{channel.youtubeHandle} · {channel.channelId}</p>
 
       <div className="card">