Add native Windows compatibility layer

scripts/add_hwfit_models.py

@@ -173,7 +173,7 @@ def _entry_from_modelinfo(mi, overrides):
 
 
 def main():
-    with open(DATA_PATH) as f:
+    with open(DATA_PATH, encoding="utf-8") as f:
         catalog = json.load(f)
     by_name = {m["name"]: m for m in catalog}
     existing = set(by_name)
@@ -214,12 +214,12 @@ def main():
         return
 
     # Backup + merge
-    with open(DATA_PATH + ".bak", "w") as f:
+    with open(DATA_PATH + ".bak", "w", encoding="utf-8") as f:
         json.dump(catalog, f, indent=2)
     for name, entry in to_add.items():
         by_name[name] = entry
     merged = list(by_name.values())
-    with open(DATA_PATH, "w") as f:
+    with open(DATA_PATH, "w", encoding="utf-8") as f:
         json.dump(merged, f, indent=2)
 
     print(f"\nAdded/updated {len(to_add)} models. Catalog now {len(merged)} (was {len(catalog)}).")

scripts/claim_ownerless.py

@@ -29,7 +29,7 @@ def main():
         if not os.path.exists(path):
             print(f"  {label}: not found, skipping")
             continue
-        with open(path, "r") as f:
+        with open(path, "r", encoding="utf-8") as f:
             entries = json.load(f)
         count = 0
         for e in entries:
@@ -37,7 +37,7 @@ def main():
                 e["owner"] = owner
                 count += 1
         if count:
-            with open(path, "w") as f:
+            with open(path, "w", encoding="utf-8") as f:
                 json.dump(entries, f, ensure_ascii=False, indent=2)
         print(f"  {label}: claimed {count} entries")
 

scripts/diffusion_server.py

@@ -117,7 +117,7 @@ def load_model():
     cls_name_from_index = ""
     if model_index.exists():
         try:
-            idx = json.loads(model_index.read_text())
+            idx = json.loads(model_index.read_text(encoding="utf-8"))
             cls_name_from_index = idx.get("_class_name", "")
             if hasattr(diffusers, cls_name_from_index):
                 pipeline_cls = getattr(diffusers, cls_name_from_index)

scripts/migrate_faiss_to_chroma.py

@@ -39,7 +39,7 @@ def migrate_memories():
         logger.info("No memory FAISS index found, skipping memory migration")
         return
 
-    ids = json.loads(open(ids_path).read())
+    ids = json.loads(open(ids_path, encoding="utf-8").read())
     if not ids:
         logger.info("Memory FAISS index is empty, skipping")
         return
@@ -47,7 +47,7 @@ def migrate_memories():
     # Load memory texts
     memories = {}
     if os.path.exists(memory_path):
-        for mem in json.loads(open(memory_path).read()):
+        for mem in json.loads(open(memory_path, encoding="utf-8").read()):
             memories[mem.get("id", "")] = mem
 
     embed = get_embedding_client()
@@ -97,7 +97,7 @@ def migrate_rag():
         logger.info("No RAG DocStore found, skipping RAG migration")
         return
 
-    data = json.loads(open(docs_path).read())
+    data = json.loads(open(docs_path, encoding="utf-8").read())
     ids = data.get("ids", [])
     documents = data.get("documents", [])
     metadatas = data.get("metadatas", [])