Increase image resolution to 512x512 in training and verification

- Update train2.py and verify2.py to use 512x512 image resize instead of 224x224
- Add grep command permission to Claude settings

.claude/settings.local.json

@@ -3,7 +3,8 @@
     "allow": [
       "Bash(curl:*)",
       "Bash(git restore:*)",
-      "Read(//home/fam/src/themblem/api/products/**)"
+      "Read(//home/fam/src/themblem/api/products/**)",
+      "Bash(grep:*)"
     ],
     "deny": [],
     "ask": []

emblem5/ai/train2.py

@@ -584,7 +584,7 @@ def main():
     
     # Define transforms
     transform = transforms.Compose([
-        transforms.Resize((224, 224)),
+        transforms.Resize((512, 512)),
         transforms.ToTensor(),
         transforms.Normalize(mean=[0.485, 0.456, 0.406], std=[0.229, 0.224, 0.225])
     ])

emblem5/ai/verify2.py

@@ -289,7 +289,7 @@ def main():
     
     # Define transforms
     transform = transforms.Compose([
-        transforms.Resize((224, 224)),
+        transforms.Resize((512, 512)),
         transforms.ToTensor(),
         transforms.Normalize(mean=[0.485, 0.456, 0.406], std=[0.229, 0.224, 0.225])
     ])