feat(app): show attempt count column on the Skipped Packages tab

attemptCount goes through SkippedPackageItem and SkippedRow into a new
column on the data table. Badge color cues:
  - outline (1)        first failure, will auto-retry next cycle
  - secondary (2-4)    has retried but still below cap
  - destructive (>=5)  hit the cap; will not auto-retry until reset

The "Skipped" column is renamed to "Last Skipped" since the timestamp
now reflects the most recent attempt, not the first.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

src/app/(app)/stls/_components/skipped-columns.tsx

@@ -20,6 +20,7 @@ export interface SkippedRow {
   sourceChannel: { id: string; title: string };
   isMultipart: boolean;
   partCount: number;
+  attemptCount: number;
   createdAt: string;
 }
 
@@ -107,9 +108,22 @@ export function getSkippedColumns({
       ),
       accessorFn: (row) => row.sourceChannel.title,
     },
+    {
+      accessorKey: "attemptCount",
+      header: ({ column }) => <DataTableColumnHeader column={column} title="Attempts" />,
+      cell: ({ row }) => {
+        const count = row.original.attemptCount;
+        const variant = count >= 5 ? "destructive" : count > 1 ? "secondary" : "outline";
+        return (
+          <Badge variant={variant} className="text-[10px]">
+            {count}
+          </Badge>
+        );
+      },
+    },
     {
       accessorKey: "createdAt",
-      header: ({ column }) => <DataTableColumnHeader column={column} title="Skipped" />,
+      header: ({ column }) => <DataTableColumnHeader column={column} title="Last Skipped" />,
       cell: ({ row }) => (
         <span className="text-sm text-muted-foreground">
           {new Date(row.original.createdAt).toLocaleDateString()}

src/lib/telegram/queries.ts

@@ -589,6 +589,7 @@ export async function listSkippedPackages(options: {
     sourceMessageId: s.sourceMessageId.toString(),
     isMultipart: s.isMultipart,
     partCount: s.partCount,
+    attemptCount: s.attemptCount,
     createdAt: s.createdAt.toISOString(),
   }));
 

src/lib/telegram/types.ts

@@ -55,6 +55,8 @@ export interface SkippedPackageItem {
   sourceMessageId: string;
   isMultipart: boolean;
   partCount: number;
+  /** How many times the worker has tried this source message across cycles. */
+  attemptCount: number;
   createdAt: string;
 }