feat: add versioned research templates and alpha variants

backend/app/main.py

@@ -11,6 +11,7 @@ from typing import Annotated
 from fastapi import APIRouter, Depends, FastAPI, HTTPException, Query, Request, Response
 from fastapi.exceptions import RequestValidationError
 from fastapi.responses import JSONResponse, StreamingResponse
+from pydantic import ValidationError
 from sqlalchemy import delete, select, text
 
 from .ai.routes import router as ai_router
@@ -18,11 +19,13 @@ from .ai.runtime import AIRuntime
 from .alphas import list_statement, sorted_statement
 from .backtests.routes import router as backtest_router
 from .business import Business, notify_job
+from .catalog.research_routes import router as research_catalog_router
 from .catalog.routes import router as catalog_router
 from .config import Settings
 from .db import create_database
 from .jobs import AUTH_KINDS, Runner, create_job
 from .models import Account, Admin, BacktestConfig, Job, JobItem, LoginSession
+from .research.routes import router as research_router
 from .schemas import (
     AccountOutput,
     AlphaDetail,
@@ -117,6 +120,7 @@ def create_app(settings=None, wq_client=None, ai_model_factory=None):
     login_failures = defaultdict(list)
 
     @app.exception_handler(RequestValidationError)
+    @app.exception_handler(ValidationError)
     async def validation_error(request, exc):
         # Pydantic's default error includes the submitted value, possibly a password.
         return JSONResponse(
@@ -400,5 +404,7 @@ def create_app(settings=None, wq_client=None, ai_model_factory=None):
     app.include_router(backtest_router)
     app.include_router(api)
     app.include_router(catalog_router)
+    app.include_router(research_catalog_router)
+    app.include_router(research_router)
     app.include_router(ai_router(ai_runtime))
     return app