Add an AI assistant that replies to Messenger texts and voice notes

flowchart TD trig>"customer sends Messenger message"]:::trig s0["detect message type"]:::task s1["AI reads and interprets message"]:::svc s2["AI generates reply"]:::svc s3["send reply on Messenger"]:::task trig --> s0 s1 --> s2 s2 --> s3 gx{"× is message text image or voice"}:::gate s0 --> gx p00["read text directly"]:::task gx -->|"text message"| p00 p10["interpret photo content"]:::task gx -->|"image message"| p10 p20["transcribe voice message"]:::task gx -->|"voice note"| p20 jn{"○ continue to AI reply"}:::gate p00 --> jn p10 --> jn p20 --> jn jn --> s1 out[/"relevant reply sent instantly"/]:::out pay{{"customers answered any time of day"}}:::pay s3 --> out out --> pay classDef task fill:#e7f6fe,stroke:#34b8f0,color:#2c2a29 classDef svc fill:#f6f8fa,stroke:#7c8795,color:#2c2a29 classDef mi fill:#e7f6fe,stroke:#0079a8,color:#2c2a29,stroke-width:2px classDef human fill:#fff,stroke:#0079a8,color:#0079a8 classDef store fill:#f6f8fa,stroke:#0079a8,color:#2c2a29 classDef trig fill:#00a4eb,stroke:#0079a8,color:#fff,font-weight:bold classDef trigtime fill:#00a4eb,stroke:#0079a8,color:#fff,font-weight:bold classDef trigdata fill:#8ad4f5,stroke:#0079a8,color:#06314c,font-weight:bold classDef gate fill:#fff,stroke:#e8a23d,color:#6b4708,font-weight:bold classDef out fill:#1f9d6b,stroke:#167a53,color:#fff,font-weight:bold classDef pay fill:#06314c,stroke:#021f33,color:#fff