fix: webhook mode starts listening immediately, no AI test blocking

v4.4: webhook mode for Cloud Run / Railway / Render

fix: timeout params on builder not run_polling

fix: bootstrap_retries=10 + 30s timeouts for HF Space network

fix: increase Telegram API timeouts for HF Space network

v4.3: pre-filter layer — zero API cost spam defense

fix: pin google-generativeai==0.8.4 + startup AI test

v3.0: international edition — universal prompts, English UI, multilingual bot

fix: HF Space health check on port 7860 + Node.js 24 Actions warning

v1.0: TelegramGuard - AI-powered group guardian with I-Lang Prompt Spec