fix: resolve folder key from folder_path for serverless environments

Per PR review: _resolve_folder now matches ContextGroundingService
pattern — resolves folder_key from folder_path via FolderService
when UIPATH_FOLDER_KEY is not set (serverless/robot environments
only have UIPATH_FOLDER_PATH).

MemoryService now takes a FolderService dependency, wired through
the UiPath class.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: mjnovice

packages/uipath-platform/src/uipath/platform/_uipath.py

@@ -115,7 +115,7 @@ def context_grounding(self) -> ContextGroundingService:
 
     @property
     def memory(self) -> MemoryService:
-        return MemoryService(self._config, self._execution_context)
+        return MemoryService(self._config, self._execution_context, self.folders)
 
     @property
     def documents(self) -> DocumentsService:

packages/uipath-platform/src/uipath/platform/memory/_memory_service.py

@@ -14,6 +14,7 @@
 from ..common._execution_context import UiPathExecutionContext
 from ..common._folder_context import FolderContext, header_folder
 from ..common._models import Endpoint, RequestSpec
+from ..orchestrator._folder_service import FolderService
 from .memory import (
     EpisodicMemoryCreateRequest,
     EpisodicMemoryIndex,
@@ -45,8 +46,10 @@ def __init__(
         self,
         config: UiPathApiConfig,
         execution_context: UiPathExecutionContext,
+        folders_service: FolderService,
     ) -> None:
         super().__init__(config=config, execution_context=execution_context)
+        self._folders_service = folders_service
 
     # ── Index operations (ECS) ─────────────────────────────────────────
 
@@ -422,8 +425,30 @@ async def delete_memory_async(
 
     # ── Private spec builders ─────────────────────────────────────────
 
-    def _resolve_folder(self, folder_key: Optional[str]) -> Optional[str]:
-        return folder_key or self._folder_key
+    def _resolve_folder(
+        self,
+        folder_key: Optional[str] = None,
+        folder_path: Optional[str] = None,
+    ) -> Optional[str]:
+        """Resolve the folder key, supporting folder_path lookup for serverless.
+
+        Priority:
+        1. Explicit folder_key argument
+        2. Explicit folder_path argument → resolve via FolderService
+        3. UIPATH_FOLDER_KEY env var (via FolderContext._folder_key)
+        4. UIPATH_FOLDER_PATH env var → resolve via FolderService
+        """
+        if folder_key is None and folder_path is not None:
+            folder_key = self._folders_service.retrieve_key(folder_path=folder_path)
+
+        if folder_key is None and folder_path is None:
+            folder_key = self._folder_key or (
+                self._folders_service.retrieve_key(folder_path=self._folder_path)
+                if self._folder_path
+                else None
+            )
+
+        return folder_key
 
     # -- ECS specs --