Add accumulator preview and batch save node

__init__.py

@@ -117,6 +117,15 @@ COMMON_INPUT_TOOLTIPS = {
     "image": "Image to store in the accumulator.",
     "entry_id": "Stable ID used for replace_by_entry_id or grouping variants.",
     "entry_tag": "Optional suffix added to entry_id.",
+    "preview_limit": "Maximum number of accumulator images to show in the preview panel.",
+    "delete_action": "Optional execution-time delete operation. JS buttons can delete interactively without setting this.",
+    "delete_entry_id": "Entry id to delete when delete_action is delete_entry_id.",
+    "delete_index": "1-based entry index to delete when delete_action is delete_index. 0 disables it.",
+    "save_batch": "When enabled, save all current accumulator images once finished is true.",
+    "finished": "Gate for saving. Outside a loop, leave true; inside a loop, wire a final-iteration signal.",
+    "save_path": "Folder to save the accumulator batch. Relative paths are inside ComfyUI output; absolute paths are used directly.",
+    "filename_prefix": "Filename prefix for saved accumulator images.",
+    "clear_after_save": "Clear the accumulator store after a successful batch save.",
     "clothing": "Built-in clothing density for legacy direct generation. Category/profile nodes can override this.",
     "poses": "Built-in pose pool for legacy direct generation.",
     "backside_bias": "Legacy bias toward rear/backside poses where that category supports it.",
@@ -317,7 +326,13 @@ def _install_input_tooltips(node_classes: dict[str, type]) -> None:
         node_class._sxcp_tooltips_installed = True
 
 try:
-    from .loop_nodes import ANY_TYPE, LOOP_NODE_CLASS_MAPPINGS, LOOP_NODE_DISPLAY_NAME_MAPPINGS
+    from .loop_nodes import (
+        ANY_TYPE,
+        LOOP_NODE_CLASS_MAPPINGS,
+        LOOP_NODE_DISPLAY_NAME_MAPPINGS,
+        accumulator_delete_entries,
+        accumulator_list_entries,
+    )
     from .prompt_builder import (
         build_camera_config_json,
         build_camera_orbit_config_json,
@@ -386,7 +401,13 @@ try:
     from .caption_naturalizer import naturalize_caption
     from .krea_formatter import format_krea2_prompt
 except ImportError:
-    from loop_nodes import ANY_TYPE, LOOP_NODE_CLASS_MAPPINGS, LOOP_NODE_DISPLAY_NAME_MAPPINGS
+    from loop_nodes import (
+        ANY_TYPE,
+        LOOP_NODE_CLASS_MAPPINGS,
+        LOOP_NODE_DISPLAY_NAME_MAPPINGS,
+        accumulator_delete_entries,
+        accumulator_list_entries,
+    )
     from prompt_builder import (
         build_camera_config_json,
         build_camera_orbit_config_json,
@@ -469,6 +490,29 @@ if PromptServer is not None and web is not None:
         except Exception as exc:
             return web.json_response({"error": str(exc)}, status=400)
 
+    @PromptServer.instance.routes.post("/sxcp/accumulator/list")
+    async def sxcp_accumulator_list(request):
+        try:
+            payload = await request.json()
+            result = accumulator_list_entries(str(payload.get("store_key") or ""))
+            return web.json_response(result)
+        except Exception as exc:
+            return web.json_response({"error": str(exc)}, status=400)
+
+    @PromptServer.instance.routes.post("/sxcp/accumulator/delete")
+    async def sxcp_accumulator_delete(request):
+        try:
+            payload = await request.json()
+            result = accumulator_delete_entries(
+                store_key=str(payload.get("store_key") or ""),
+                entry_id=str(payload.get("entry_id") or ""),
+                index=int(payload.get("index") or 0),
+                clear=bool(payload.get("clear")),
+            )
+            return web.json_response(result)
+        except Exception as exc:
+            return web.json_response({"error": str(exc)}, status=400)
+
 
 class SxCPPromptBuilder:
     @classmethod