feat: add Telegram integration with forum topic support and creator tracking

Adds full Telegram ZIP ingestion pipeline: TDLib worker service scans source
channels for archive files, deduplicates by content hash, extracts metadata,
uploads to archive channel, and indexes in Postgres. Forum supergroups are
scanned per-topic with topic names used as creator. Filename-based creator
extraction (e.g. "Mammoth Factory - 2026-01.zip") serves as fallback.

Includes admin UI for managing accounts/channels, simplified account setup
(API credentials via env vars), auth code/password submission dialog,
package browser with creator column, and live ingestion activity tracking.

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

src/app/(app)/telegram/_components/channels-tab.tsx

@@ -0,0 +1,97 @@
+"use client";
+
+import { useState, useTransition } from "react";
+import { Plus } from "lucide-react";
+import { toast } from "sonner";
+import { getChannelColumns } from "./channel-columns";
+import { ChannelModal } from "./channel-modal";
+import { deleteChannel, toggleChannelActive } from "../actions";
+import { DataTable } from "@/components/shared/data-table";
+import { DeleteDialog } from "@/components/shared/delete-dialog";
+import { Button } from "@/components/ui/button";
+import type { ChannelRow } from "@/lib/telegram/admin-queries";
+import { useDataTable } from "@/hooks/use-data-table";
+
+interface ChannelsTabProps {
+  channels: ChannelRow[];
+}
+
+export function ChannelsTab({ channels }: ChannelsTabProps) {
+  const [isPending, startTransition] = useTransition();
+  const [modalOpen, setModalOpen] = useState(false);
+  const [editChannel, setEditChannel] = useState<ChannelRow | undefined>();
+  const [deleteId, setDeleteId] = useState<string | null>(null);
+
+  const columns = getChannelColumns({
+    onEdit: (channel) => {
+      setEditChannel(channel);
+      setModalOpen(true);
+    },
+    onToggleActive: (id) => {
+      startTransition(async () => {
+        const result = await toggleChannelActive(id);
+        if (result.success) toast.success("Channel toggled");
+        else toast.error(result.error);
+      });
+    },
+    onDelete: (id) => setDeleteId(id),
+  });
+
+  const { table } = useDataTable({
+    data: channels,
+    columns,
+    pageCount: 1,
+  });
+
+  const handleDelete = () => {
+    if (!deleteId) return;
+    startTransition(async () => {
+      const result = await deleteChannel(deleteId);
+      if (result.success) {
+        toast.success("Channel deleted");
+        setDeleteId(null);
+      } else {
+        toast.error(result.error);
+      }
+    });
+  };
+
+  return (
+    <div className="space-y-4">
+      <div className="flex items-center gap-2">
+        <Button
+          onClick={() => {
+            setEditChannel(undefined);
+            setModalOpen(true);
+          }}
+        >
+          <Plus className="mr-2 h-4 w-4" />
+          Add Channel
+        </Button>
+      </div>
+
+      <DataTable
+        table={table}
+        emptyMessage="No channels configured. Add a Telegram channel to start ingesting."
+      />
+
+      <ChannelModal
+        open={modalOpen}
+        onOpenChange={(open) => {
+          setModalOpen(open);
+          if (!open) setEditChannel(undefined);
+        }}
+        channel={editChannel}
+      />
+
+      <DeleteDialog
+        open={!!deleteId}
+        onOpenChange={(open) => !open && setDeleteId(null)}
+        title="Delete Channel"
+        description="This will permanently delete this channel and unlink it from all accounts. Existing packages will NOT be deleted."
+        onConfirm={handleDelete}
+        isLoading={isPending}
+      />
+    </div>
+  );
+}