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/channel-columns.tsx

@@ -0,0 +1,132 @@
+"use client";
+
+import { type ColumnDef } from "@tanstack/react-table";
+import {
+  MoreHorizontal,
+  Pencil,
+  Trash2,
+  Power,
+} from "lucide-react";
+import { Badge } from "@/components/ui/badge";
+import { Button } from "@/components/ui/button";
+import {
+  DropdownMenu,
+  DropdownMenuContent,
+  DropdownMenuItem,
+  DropdownMenuSeparator,
+  DropdownMenuTrigger,
+} from "@/components/ui/dropdown-menu";
+import type { ChannelRow } from "@/lib/telegram/admin-queries";
+
+interface ChannelColumnsProps {
+  onEdit: (channel: ChannelRow) => void;
+  onToggleActive: (id: string) => void;
+  onDelete: (id: string) => void;
+}
+
+export function getChannelColumns({
+  onEdit,
+  onToggleActive,
+  onDelete,
+}: ChannelColumnsProps): ColumnDef<ChannelRow, unknown>[] {
+  return [
+    {
+      accessorKey: "title",
+      header: "Channel",
+      cell: ({ row }) => (
+        <div className="flex flex-col">
+          <span className="font-medium">{row.original.title}</span>
+          <span className="text-xs text-muted-foreground">
+            ID: {row.original.telegramId}
+          </span>
+        </div>
+      ),
+      enableHiding: false,
+    },
+    {
+      accessorKey: "type",
+      header: "Type",
+      cell: ({ row }) => (
+        <Badge
+          variant="outline"
+          className={
+            row.original.type === "SOURCE"
+              ? "bg-blue-500/10 text-blue-600 border-blue-500/20"
+              : "bg-purple-500/10 text-purple-600 border-purple-500/20"
+          }
+        >
+          {row.original.type}
+        </Badge>
+      ),
+    },
+    {
+      accessorKey: "isActive",
+      header: "Status",
+      cell: ({ row }) => (
+        <Badge variant={row.original.isActive ? "default" : "secondary"}>
+          {row.original.isActive ? "Active" : "Disabled"}
+        </Badge>
+      ),
+    },
+    {
+      id: "accounts",
+      header: "Accounts",
+      cell: ({ row }) => (
+        <span className="text-sm text-muted-foreground">
+          {row.original.accountCount}
+        </span>
+      ),
+    },
+    {
+      id: "packages",
+      header: "Packages",
+      cell: ({ row }) => (
+        <span className="text-sm text-muted-foreground">
+          {row.original.packageCount}
+        </span>
+      ),
+    },
+    {
+      accessorKey: "createdAt",
+      header: "Created",
+      cell: ({ row }) => (
+        <span className="text-sm text-muted-foreground">
+          {new Date(row.original.createdAt).toLocaleDateString()}
+        </span>
+      ),
+    },
+    {
+      id: "actions",
+      cell: ({ row }) => (
+        <DropdownMenu>
+          <DropdownMenuTrigger asChild>
+            <Button variant="ghost" size="icon" className="h-8 w-8">
+              <MoreHorizontal className="h-4 w-4" />
+            </Button>
+          </DropdownMenuTrigger>
+          <DropdownMenuContent align="end">
+            <DropdownMenuItem onClick={() => onEdit(row.original)}>
+              <Pencil className="mr-2 h-3.5 w-3.5" />
+              Edit
+            </DropdownMenuItem>
+            <DropdownMenuItem
+              onClick={() => onToggleActive(row.original.id)}
+            >
+              <Power className="mr-2 h-3.5 w-3.5" />
+              {row.original.isActive ? "Disable" : "Enable"}
+            </DropdownMenuItem>
+            <DropdownMenuSeparator />
+            <DropdownMenuItem
+              onClick={() => onDelete(row.original.id)}
+              className="text-destructive focus:text-destructive"
+            >
+              <Trash2 className="mr-2 h-3.5 w-3.5" />
+              Delete
+            </DropdownMenuItem>
+          </DropdownMenuContent>
+        </DropdownMenu>
+      ),
+      enableHiding: false,
+    },
+  ];
+}