feat: add Pyramid home dashboard

backend/tests/browser_server.py

@@ -142,6 +142,21 @@ def create_test_app():
             )
         if path == "/users/self/alphas/summary":
             return httpx.Response(200, json={"unsubmitted": 413, "active": 207, "decommissioned": 0})
+        if path in ("/users/self/activities/pyramid-multipliers", "/users/self/activities/pyramid-alphas"):
+            metric = "multiplier" if path.endswith("multipliers") else "alphaCount"
+            categories = [
+                ("analyst", "Analyst", "USA", 1, 1.8, 12),
+                ("fundamental", "Fundamental", "EUR", 1, 1.6, 7),
+                ("model", "Model", "GLB", 1, 1.5, 5),
+                ("sentiment", "Sentiment", "CHN", 0, 1.4, 3),
+                ("news", "News", "ASI", 1, 1.2, 0),
+                ("pv", "Price Volume", "USA", 0, 1.0, 0),
+            ]
+            return httpx.Response(200, json={"pyramids": [
+                {"category": {"id": cid, "name": name}, "region": region, "delay": delay,
+                 metric: multiplier if metric == "multiplier" else min(count, 2) if request.url.query else count}
+                for cid, name, region, delay, multiplier, count in categories
+            ]})
         if path in ("/users/self/activities/simulations", "/users/self/activities/submissions"):
             from zoneinfo import ZoneInfo