feat(research): streamline template details and enable bot versioning

backend/app/research_access/service.py

@@ -81,6 +81,8 @@ class ResearchAccess(SuperResearchAccess):
                 "metadata_only": True, "actual_platform_allowance": None,
                 "templates": {
                     "create_with": "create_research_template", "required_scope": "research:write",
+                    "version_with": "create_research_template_version",
+                    "read_with": "get_research_template", "search_with": "search_research_templates",
                     "authored_by": "caller", "max_source_items": 20,
                     "source_items_with": "get_backtest_results", "starts_backtests": False,
                     "web_url": f"{self.public_origin}/#templates",
@@ -285,6 +287,30 @@ class ResearchAccess(SuperResearchAccess):
         return await self.remember("create_research_template", args, digest, result,
                                    business_id=result["template_id"])
 
+    async def template(self, args):
+        """Read the exact saved template revision without executing research."""
+        from ..research.assets import Assets
+
+        return await Assets(self.db).get(args.template_id, args.version, "template")
+
+    async def templates(self, args):
+        """Search the same template library used by the browser."""
+        from ..research.assets import Assets
+
+        return await Assets(self.db).list("template", **args.model_dump())
+
+    async def create_template_version(self, args):
+        """Append an idempotent, optimistic revision with refreshed source evidence."""
+        from .templates import create_template
+
+        operation = "create_research_template_version"
+        previous, digest = await self.previous(operation, args)
+        if previous:
+            return previous.response
+        result = await create_template(self.db, args, self.principal, asset_id=args.template_id)
+        result["web_url"] = f"{self.public_origin}/#templates"
+        return await self.remember(operation, args, digest, result, business_id=args.template_id)
+
     async def previous(self, operation, args):
         # PostgreSQL row lock is shared with HTTP start and catalog/job creation.
         account = await self.db.scalar(select(Account).where(Account.id == self.principal.account_id).with_for_update())