feat: 支持研究素材删除并统一 Semi 表格

backend/app/research/experiments.py

@@ -5,7 +5,7 @@ import json
 from collections import defaultdict
 
 from fastapi import HTTPException
-from sqlalchemy import func, select
+from sqlalchemy import func, select, update
 
 from ..backtests.contracts import Candidate, DraftInput, PreviewInput, SimulationSettings, Source
 from ..backtests.service import Backtests, uid
@@ -243,6 +243,7 @@ class Experiments:
                         "id",
                         "name",
                         "kind",
+                        "archived",
                         "hypothesis",
                         "inputs",
                         "parents",
@@ -256,7 +257,7 @@ class Experiments:
         )
 
     async def list(self, kind=None, limit=25, offset=0):
-        query = select(ResearchExperiment)
+        query = select(ResearchExperiment).where(ResearchExperiment.archived.is_(False))
         if kind:
             query = query.where(ResearchExperiment.kind == kind)
         total = await self.db.scalar(select(func.count()).select_from(query.subquery()))
@@ -281,6 +282,19 @@ class Experiments:
             }
         )
 
+    async def archive(self, experiment_id):
+        """Hide an immutable experiment; backtests and lineage must still resolve it.
+
+        Returns an acknowledgement, or raises HTTP 404 for an unknown ID. Repeated
+        deletion is idempotent because candidate contents cannot change.
+        """
+        result = await self.db.execute(
+            update(ResearchExperiment).where(ResearchExperiment.id == experiment_id).values(archived=True)
+        )
+        if result.rowcount != 1:
+            raise HTTPException(404, "研究实验不存在")
+        return {"ok": True}
+
     async def preview(self, experiment_id, candidate_ids=None, source_kind=None, reference=None):
         experiment = await self.get(experiment_id)
         candidates = experiment["candidates"]