fix: sanitize ICD-10 codes + UI/chat history fixes

refactor: system/user prompt split + robust JSON extraction

fix: localize condition names + add edge-tts dependency

feat: TTS listen button + follow-up Q&A chat

refactor: split format_agent into 2 separate LLM calls (patient + SOAP)

fix: LLM ignores ===SOAP=== delimiter — stronger prompt + fallback parser

fix: 7 bugs — PART labels, hallucination, lang switch, tab i18n, SVG click, img-mode radio, actions label

feat: 3-step agentic pipeline — A/B comparison, red-flag triage, SOAP note