fix: resolve merge conflicts with main

fix: address 4 Devin review findings

fix: address Devin Review findings — range(17), _safe_send, delbr prefix collision

feat: enhance bot with Actions, search, diff, download, branch management, expanded AI tools

feat: add Pydantic v2 + Zod validation schemas for AI agent tool calls

feat: add Telegram notification bot for error alerts and startup events

feat: add observability, telemetry, and structured error logging

feat: add voice interaction — Groq Whisper STT + PlayAI TTS

feat: add ALLaM-7B-Instruct-preview as default HuggingFace model

fix: wire call_ai_with_tools into all AI button handlers and add recv_ai_key

feat: add multi-AI provider support (DeepSeek, HuggingFace, Mistral) + HF Space auto-sync

perf: add connection pooling, retry logic, and Groq timeout

fix: resolve all critical findings from 5-agent parallel review

fix: debug bot — fix groq_key bug, blocking I/O, Markdown errors + add structured logging

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