Add demo data & reqs

mqtt_received_demo_data.json

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+[
+    {"timestamp": "01/01/2025", "energy_kW": "2.386"},
+    {"timestamp": "02/01/2025", "energy_kW": "2.305"},
+    {"timestamp": "03/01/2025", "energy_kW": "2.401"},
+    {"timestamp": "04/01/2025", "energy_kW": "4.389"},
+    {"timestamp": "05/01/2025", "energy_kW": "4.661"},
+    {"timestamp": "06/01/2025", "energy_kW": "1.786"},
+    {"timestamp": "07/01/2025", "energy_kW": "3.005"},
+    {"timestamp": "08/01/2025", "energy_kW": "1.102"},
+    {"timestamp": "09/01/2025", "energy_kW": "5.034"},
+    {"timestamp": "10/01/2025", "energy_kW": "1.957"},
+    {"timestamp": "11/01/2025", "energy_kW": "2.989"},
+    {"timestamp": "12/01/2025", "energy_kW": "3.286"},
+    {"timestamp": "13/01/2025", "energy_kW": "3.241"},
+    {"timestamp": "14/01/2025", "energy_kW": "2.247"},
+    {"timestamp": "15/01/2025", "energy_kW": "2.735"},
+    {"timestamp": "16/01/2025", "energy_kW": "2.187"},
+    {"timestamp": "17/01/2025", "energy_kW": "1.336"},
+    {"timestamp": "18/01/2025", "energy_kW": "3.887"},
+    {"timestamp": "19/01/2025", "energy_kW": "3.833"},
+    {"timestamp": "20/01/2025", "energy_kW": "7.238"},
+    {"timestamp": "21/01/2025", "energy_kW": "3.139"},
+    {"timestamp": "22/01/2025", "energy_kW": "3.419"},
+    {"timestamp": "23/01/2025", "energy_kW": "5.602"},
+    {"timestamp": "24/01/2025", "energy_kW": "3.426"},
+    {"timestamp": "25/01/2025", "energy_kW": "4.539"},
+    {"timestamp": "26/01/2025", "energy_kW": "3.364"},
+    {"timestamp": "27/01/2025", "energy_kW": "4.860"},
+    {"timestamp": "28/01/2025", "energy_kW": "1.915"},
+    {"timestamp": "29/01/2025", "energy_kW": "1.061"},
+    {"timestamp": "30/01/2025", "energy_kW": "2.961"},
+    {"timestamp": "31/01/2025", "energy_kW": "4.233"}
+]

requirements.txt

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+gradio
+pandas