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>

worker/package.json

@@ -0,0 +1,28 @@
+{
+  "name": "dragonsstash-worker",
+  "version": "0.1.0",
+  "private": true,
+  "type": "module",
+  "scripts": {
+    "build": "tsc",
+    "start": "node dist/index.js",
+    "dev": "tsx watch src/index.ts"
+  },
+  "dependencies": {
+    "@prisma/adapter-pg": "^7.4.0",
+    "@prisma/client": "^7.4.0",
+    "pg": "^8.18.0",
+    "pino": "^9.6.0",
+    "prebuilt-tdlib": "^0.1008050.0",
+    "tdl": "^8.0.0",
+    "yauzl": "^3.2.0"
+  },
+  "devDependencies": {
+    "@types/node": "^20",
+    "@types/pg": "^8.16.0",
+    "@types/yauzl": "^2.10.3",
+    "prisma": "^7.4.0",
+    "tsx": "^4.21.0",
+    "typescript": "^5"
+  }
+}