feat: add channel categories and improved creator detection

- Add category field to TelegramChannel (filterable tag like STL, PDF, D&D)
- Category column in channels table with edit via dropdown menu
- Improved creator extraction: filename patterns + channel title fallback
- extractCreatorFromChannelTitle strips [Completed], (Paid), emoji, etc.
- Fix ArchiveType in PackageListItem and PackageRow for new types
- Add Prisma migration for category column

prisma/migrations/20260321190000_add_channel_category/migration.sql

@@ -0,0 +1,5 @@
+-- AlterTable
+ALTER TABLE "telegram_channels" ADD COLUMN "category" VARCHAR(64);
+
+-- CreateIndex
+CREATE INDEX "telegram_channels_category_idx" ON "telegram_channels"("category");

prisma/schema.prisma

@@ -421,6 +421,7 @@ model TelegramChannel {
   type       ChannelType
   isForum    Boolean     @default(false)
   isActive   Boolean     @default(false)
+  category   String?     @db.VarChar(64)
   createdAt  DateTime    @default(now())
   updatedAt  DateTime    @updatedAt
 
@@ -428,6 +429,7 @@ model TelegramChannel {
   packages    Package[]
 
   @@index([type, isActive])
+  @@index([category])
   @@map("telegram_channels")
 }
 

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

@@ -12,7 +12,7 @@ export interface PackageRow {
   fileName: string;
   fileSize: string;
   contentHash: string;
-  archiveType: "ZIP" | "RAR";
+  archiveType: "ZIP" | "RAR" | "SEVEN_Z" | "DOCUMENT";
   fileCount: number;
   isMultipart: boolean;
   hasPreview: boolean;

src/app/(app)/telegram/_components/channel-columns.tsx

@@ -8,6 +8,7 @@ import {
   ArrowDownToLine,
   ArrowUpFromLine,
   RefreshCcw,
+  Tag,
 } from "lucide-react";
 import { Badge } from "@/components/ui/badge";
 import { Button } from "@/components/ui/button";
@@ -25,6 +26,7 @@ interface ChannelColumnsProps {
   onDelete: (id: string) => void;
   onSetType: (id: string, type: "SOURCE" | "DESTINATION") => void;
   onRescan: (id: string) => void;
+  onSetCategory: (id: string, category: string | null) => void;
 }
 
 export function getChannelColumns({
@@ -32,6 +34,7 @@ export function getChannelColumns({
   onDelete,
   onSetType,
   onRescan,
+  onSetCategory,
 }: ChannelColumnsProps): ColumnDef<ChannelRow, unknown>[] {
   return [
     {
@@ -63,6 +66,18 @@ export function getChannelColumns({
         </Badge>
       ),
     },
+    {
+      accessorKey: "category",
+      header: "Category",
+      cell: ({ row }) => {
+        const category = row.original.category;
+        return category ? (
+          <Badge variant="outline">{category}</Badge>
+        ) : (
+          <span className="text-xs text-muted-foreground">—</span>
+        );
+      },
+    },
     {
       accessorKey: "isActive",
       header: "Status",
@@ -132,6 +147,15 @@ export function getChannelColumns({
                 Rescan Channel
               </DropdownMenuItem>
             )}
+            <DropdownMenuItem
+              onClick={() => {
+                const cat = prompt("Enter category (e.g. STL, PDF, D&D, Cosplay):", row.original.category ?? "");
+                if (cat !== null) onSetCategory(row.original.id, cat || null);
+              }}
+            >
+              <Tag className="mr-2 h-3.5 w-3.5" />
+              Set Category
+            </DropdownMenuItem>
             <DropdownMenuItem
               onClick={() => onToggleActive(row.original.id)}
             >

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

@@ -10,6 +10,7 @@ import {
   deleteChannel,
   toggleChannelActive,
   setChannelType,
+  setChannelCategory,
   rescanChannel,
 } from "../actions";
 import { DataTable } from "@/components/shared/data-table";
@@ -50,6 +51,13 @@ export function ChannelsTab({ channels, globalDestination, accounts }: ChannelsT
       });
     },
     onRescan: (id) => setRescanId(id),
+    onSetCategory: (id, category) => {
+      startTransition(async () => {
+        const result = await setChannelCategory(id, category);
+        if (result.success) toast.success(category ? `Category set to "${category}"` : "Category removed");
+        else toast.error(result.error);
+      });
+    },
   });
 
   const { table } = useDataTable({

src/app/(app)/telegram/actions.ts

@@ -259,6 +259,25 @@ export async function deleteChannel(id: string): Promise<ActionResult> {
   }
 }
 
+export async function setChannelCategory(
+  id: string,
+  category: string | null
+): Promise<ActionResult> {
+  const admin = await requireAdmin();
+  if (!admin.success) return admin;
+
+  try {
+    await prisma.telegramChannel.update({
+      where: { id },
+      data: { category: category?.trim() || null },
+    });
+    revalidatePath("/telegram");
+    return { success: true, data: undefined };
+  } catch {
+    return { success: false, error: "Failed to update category" };
+  }
+}
+
 export async function setChannelType(
   id: string,
   type: "SOURCE" | "DESTINATION"

src/lib/telegram/admin-queries.ts

@@ -42,6 +42,7 @@ export async function listChannels() {
     title: c.title,
     type: c.type,
     isActive: c.isActive,
+    category: c.category,
     createdAt: c.createdAt.toISOString(),
     accountCount: c._count.accountMaps,
     packageCount: c._count.packages,

src/lib/telegram/types.ts

@@ -3,7 +3,7 @@ export interface PackageListItem {
   fileName: string;
   fileSize: string; // BigInt serialized as string
   contentHash: string;
-  archiveType: "ZIP" | "RAR";
+  archiveType: "ZIP" | "RAR" | "SEVEN_Z" | "DOCUMENT";
   fileCount: number;
   isMultipart: boolean;
   hasPreview: boolean;

worker/src/archive/creator.ts

@@ -1,21 +1,71 @@
 /**
  * Extract a creator name from common archive file naming patterns.
  *
- * Priority in the worker: topic name > filename extraction.
- * This is the fallback when no forum topic name is available.
+ * Priority in the worker: topic name > filename extraction > channel title > null.
  *
- * Patterns handled (split on ` - `):
+ * Patterns handled:
  *   "Mammoth Factory - 2026-01.zip"        → "Mammoth Factory"
  *   "Artist Name - Pack Title.part01.rar"   → "Artist Name"
+ *   "ArtistName_PackTitle.zip"              → null (ambiguous)
  *   "some_random_file.zip"                  → null
  */
 export function extractCreatorFromFileName(fileName: string): string | null {
-  // Strip archive extensions (.zip, .rar, .part01.rar, .z01, etc.)
-  const bare = fileName.replace(/(\.(part\d+\.rar|z\d{2}|zip|rar))+$/i, "");
+  // Strip archive/document extensions
+  const bare = fileName.replace(
+    /(\.(part\d+\.rar|z\d{2}|zip|rar|7z|pdf|stl|obj|3mf|step|stp|blend|gcode|svg|dxf|ai|eps|psd))+$/i,
+    ""
+  );
 
-  const idx = bare.indexOf(" - ");
-  if (idx <= 0) return null;
+  // Pattern 1: "Creator - Title" (most common)
+  const dashIdx = bare.indexOf(" - ");
+  if (dashIdx > 0) {
+    const creator = bare.slice(0, dashIdx).trim();
+    if (creator.length > 1) return creator;
+  }
 
-  const creator = bare.slice(0, idx).trim();
-  return creator.length > 0 ? creator : null;
+  // Pattern 2: "Creator_Title" with underscores where first segment looks like a name
+  // Only match if the first segment has a space or capital letter pattern suggesting a name
+  const underscoreIdx = bare.indexOf("_");
+  if (underscoreIdx > 2) {
+    const candidate = bare.slice(0, underscoreIdx).trim();
+    // Accept if it contains a space (multi-word) or starts with upper + has lower (proper name)
+    if (candidate.includes(" ") || /^[A-Z][a-z]/.test(candidate)) {
+      return candidate;
+    }
+  }
+
+  return null;
+}
+
+/**
+ * Extract a creator name from a Telegram channel title.
+ * Strips common suffixes like "[Completed]", "(Paid)", dates, etc.
+ */
+export function extractCreatorFromChannelTitle(title: string): string | null {
+  let clean = title
+    // Remove bracketed suffixes: [Completed], [Open], [Closed], etc.
+    .replace(/\s*\[.*?\]\s*/g, " ")
+    // Remove parenthesized suffixes: (Paid), (partial upload...), etc.
+    .replace(/\s*\(.*?\)\s*/g, " ")
+    // Remove common emoji
+    .replace(/[\u{1F300}-\u{1FAFF}\u{2600}-\u{27BF}]/gu, "")
+    .trim();
+
+  // If there's a " - " separator, take the first part as creator
+  const dashIdx = clean.indexOf(" - ");
+  if (dashIdx > 0) {
+    clean = clean.slice(0, dashIdx).trim();
+  }
+
+  // Too generic or too short
+  if (clean.length < 2) return null;
+
+  // Skip overly generic channel names
+  const generic = [
+    "3d printing", "stl", "free stl", "stl zone", "stl forest", "stl all",
+    "marvel stl", "dc stl", "star wars stl", "pokemon stl",
+  ];
+  if (generic.includes(clean.toLowerCase())) return null;
+
+  return clean;
 }

worker/src/worker.ts

@@ -36,7 +36,7 @@ import { isChatForum, getForumTopicList, getTopicMessages } from "./tdlib/topics
 import { matchPreviewToArchive } from "./preview/match.js";
 import { groupArchiveSets } from "./archive/multipart.js";
 import type { ArchiveSet } from "./archive/multipart.js";
-import { extractCreatorFromFileName } from "./archive/creator.js";
+import { extractCreatorFromFileName, extractCreatorFromChannelTitle } from "./archive/creator.js";
 import { hashParts } from "./archive/hash.js";
 import { readZipCentralDirectory } from "./archive/zip-reader.js";
 import { readRarContents } from "./archive/rar-reader.js";
@@ -968,8 +968,11 @@ async function processOneArchiveSet(
       previewMsgId = matchedPhoto.id;
     }
 
-    // ── Resolve creator: topic name > filename extraction > null ──
-    const creator = topicCreator ?? extractCreatorFromFileName(archiveName) ?? null;
+    // ── Resolve creator: topic name > filename extraction > channel title > null ──
+    const creator = topicCreator
+      ?? extractCreatorFromFileName(archiveName)
+      ?? extractCreatorFromChannelTitle(channelTitle)
+      ?? null;
 
     // ── Indexing ──
     await updateRunActivity(runId, {