v1.7.0: Neuro Agent & AI diagnostics

What changed

• Neuro Agent — an always-on AI pilot that monitors your serial session in real time, detects errors, and explains them using RAG-augmented context
• Five new AI-native features: real-time error explanation, device knowledge auto-accumulation, datasheet register/error code decode, autonomous device diagnostics, and intelligent context assembly
• Multi-turn agent conversations — ask follow-up questions to the Neuro Agent with full conversation history
• Neuro/Agent mode toggle — switch between AI chat and autonomous agent mode directly from Magic Input
• Status bar agent indicator — see at a glance whether the Neuro Agent is active and monitoring
• TUI rendering fixes — resolved stale characters, glyph corruption, and refresh timing issues in full-screen terminal apps
• SSH reconnection fix — passphrase-protected keys with Remember enabled now reconnect reliably
• Performance boost — eliminated Zustand store cloning on high-frequency session updates