Track and rate used iPhone listings across marketplaces daily

flowchart TD trig(["daily scheduled scan"]):::trigtime s0["scan marketplace listings"]:::svc s1["clean up price data"]:::task s2[["AI scores each listing"]]:::mi s3["email daily summary"]:::task trig --> s0 s0 --> s1 s1 -->|"one per each listing scanned"| s2 gx{"× which rating tier"}:::gate s2 --> gx p00["save to Google Sheets"]:::task gx -->|"high rated"| p00 p10["save to Airtable"]:::task gx -->|"mid rated"| p10 p20["drop listing"]:::task gx -->|"low rated"| p20 p00 --> s3 p10 --> s3 p20 --> s3 out[/"scored deal listings organized by quality"/]:::out pay{{"faster sourcing of good deals"}}:::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