feat: 分离 Alpha 检查与提交限制，优化检查统计与前端展示

backend/app/research/evaluations.py

@@ -7,6 +7,7 @@ from sqlalchemy import select
 
 from ..backtests.service import Backtests, uid
 from ..models import Alpha, ResearchEvaluation, ResearchExperiment, SelfCorrelation
+from ..platform_checks import split_checks, submission_limits
 from .experiments import Experiments
 from .serialization import encode_snapshot as jsonable_encoder
 
@@ -30,13 +31,14 @@ def assess(snapshot, rules):
         evidence.append(
             {"metric": key, "value": value, "bound": bound, "direction": direction, "status": status}
         )
-    checks = metrics.get("checks") or []
+    raw_checks = metrics.get("checks") or []
+    checks, _ = split_checks(raw_checks)
     if not checks:
         missing.append("platform_checks")
     for check in checks:
-        if check.get("result") == "FAIL":
+        if isinstance(check, dict) and check.get("result") == "FAIL":
             failed.append(f"platform:{check.get('name', 'unknown')}")
-    unknown_checks = [check for check in checks if check.get("result") not in ("PASS", "FAIL")]
+    unknown_checks = [check for check in checks if not isinstance(check, dict) or check.get("result") not in ("PASS", "FAIL")]
     if unknown_checks:
         missing.append("unresolved_platform_checks")
     return {
@@ -44,7 +46,8 @@ def assess(snapshot, rules):
         "evidence": evidence,
         "failed": failed,
         "missing": missing,
-        "existing_platform_checks": checks,
+        "existing_platform_checks": raw_checks,
+        "submission_limits": submission_limits(raw_checks),
         "meaning": "本地研究筛选结果，不是官方提交资格",
     }