Find local business leads and email them without duplicates

flowchart TD trig(("user sets search area and category")):::human s0["pull business listings"]:::task s1[["find contact email"]]:::mi s2[("save lead to crm")]:::store s3["send outreach email"]:::task s4["mark lead contacted"]:::task trig --> s0 s0 -->|"one per each business listing found"| s1 s2 --> s3 s3 --> s4 gx{"× email address found"}:::gate s1 --> gx p00["skip business"]:::task gx -->|"no email found"| p00 p10["continue to crm"]:::task gx -->|"email found"| p10 p00 --> s2 p10 --> s2 out[/"deduplicated leads with outreach sent"/]:::out pay{{"save hours finding and pitching leads"}}:::pay s4 --> 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