Merge pull request #350 from shimokuracg/solafune-construction-cost-prediction

[Solafune] add: new competition "Construction Cost Prediction"

Author: hcarlens

competitions.json

@@ -5264,6 +5264,26 @@
       "sponsor": "HUAWEI, interdigital, Next G Cloud, XFLOW RESEARCH, RelationalAI, ITU",
       "conference": "MWC Barcelona",
       "conference_year": 2026
+    },
+    {
+      "name": "Predict Construction Costs",
+      "url": "https://solafune.com/competitions/1918ccd7-eb06-4cfc-822f-a9823c63b2c1?menu=about&tab=overview&ref=mlcontests",
+      "tags": [
+        "geo",
+        "satellite",
+        "regression",
+        "economics",
+        "supervised",
+        "measurable"
+      ],
+      "launched": "13 Dec 2025",
+      "registration-deadline": "15 Mar 2026",
+      "deadline": "15 Mar 2026",
+      "prize": "$12,000",
+      "platform": "Solafune",
+      "sponsor": null,
+      "conference": null,
+      "conference_year": null
    },
    {
       "name": "Infer Heat Sources from Thermal Patterns",
@@ -5281,7 +5301,9 @@
       "deadline": "04 Feb 2026",
       "prize": "$20,000",
       "platform": "ThinkOnward",
-      "sponsor": null
+      "sponsor": null,
+      "conference": null,
+      "conference_year": null
     },
     {
       "name": "Vibe Code Applications with Gemini 3 Pro",