feat: add versioned research templates and alpha variants

backend/tests/browser_server.py

@@ -1,5 +1,6 @@
 """Isolated browser acceptance server: temporary database, synthetic upstream, no real network."""
 
+import os
 import tempfile
 from contextlib import asynccontextmanager
 from datetime import datetime, timedelta, timezone
@@ -14,6 +15,7 @@ from app.worldquant import WqClient
 from tests.ai_fake import fake_model
 from tests.backtest_fake import Platform
 from tests.catalog_fake import catalog_response
+from tests.research_metadata_fake import response as research_metadata_response
 
 TEST_PASSWORD = "browser-test-password"
 
@@ -80,13 +82,16 @@ def create_test_app():
         database_url=f"sqlite+aiosqlite:///{temporary.name}/test.db",
         admin_password=TEST_PASSWORD,
         encryption_key=Fernet.generate_key().decode(),
-        public_origin="http://127.0.0.1:5179",
+        public_origin=os.environ.get("BROWSER_TEST_ORIGIN", "http://127.0.0.1:5179"),
     )
     records = [sample(i) for i in range(620)]
     simulations = Platform()
     simulations.existing_alpha_ids = [f"TEST{i:04}" for i in range(1, 100)]
 
     def upstream(request):
+        metadata = research_metadata_response(request)
+        if metadata is not None:
+            return metadata
         path = request.url.path
         if path == "/authentication" and request.method == "POST":
             return httpx.Response(