feat: telegram commands, app settings, bot polling, webhook handling, UI improvements

Adds telegram bot command system with 13 commands (search, latest, random, etc.),
webhook/polling handlers, rate limiting, app settings page, and various UI/UX
improvements across all entity pages.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

frontend/package.json

@@ -12,7 +12,6 @@
 		"check:watch": "svelte-kit sync && svelte-check --tsconfig ./tsconfig.json --watch"
 	},
 	"devDependencies": {
-		"@sveltejs/adapter-auto": "^7.0.0",
 		"@sveltejs/adapter-static": "^3.0.10",
 		"@sveltejs/kit": "^2.50.2",
 		"@sveltejs/vite-plugin-svelte": "^6.2.4",