Sales Data Pipeline Development

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I need a small sales data pipeline (proof of concept) that runs directly on Windows 10/11. NO Docker. Delivery in 4 days, $100-$300 fixed, 2 milestones. DATA FLOW C++ simulator -> MQTT (Mosquitto) -> C# .NET collector -> SQLite -> Python loader -> Hadoop HDFS -> sales reports WHAT TO BUILD 1) C++ sales simulator - Simulates 10 stores and 50 products, sends each sale as JSON to MQTT (QoS 1) - Each sale: message_id, store_id, product_id, quantity, price, timestamp (UTC) - Settings: number of messages and speed. Stops after N messages (default 50,000) - Sends a few invalid messages on purpose (for testing) 2) C# .NET 8 collector - Subscribes to MQTT (e.g. MQTTnet) with a persistent session, so no data is lost when it restarts - Checks every message: good rows -> "...

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