Improve user guidance for file path input

Changes:
- Added tooltips to all input parameters explaining their purpose
- Enhanced alert dialog with detailed instructions and examples
- Shows current default path in the alert
- Better formatting for multi-line instructions
- Added dynamicPrompts: false to image input for better UX

Note: Browser security prevents automatic full path detection.
Users need to manually enter the complete file path after using the file picker.

random_image_picker.py

@@ -31,21 +31,26 @@ class RandomImagePicker:
                 "image": ("STRING", {
                     "default": default_path, 
                     "multiline": False,
+                    "dynamicPrompts": False,
+                    "tooltip": "Enter full path to image file (Single mode) or folder (Folder mode). Use 📁 button to help select."
                 }),
                 "folder_mode": ("BOOLEAN", {
                     "default": False, 
                     "label_on": "Folder", 
-                    "label_off": "Single"
+                    "label_off": "Single",
+                    "tooltip": "Single: Load specific file | Folder: Random from folder"
                 }),
                 "include_subfolders": ("BOOLEAN", {
                     "default": False, 
                     "label_on": "ON", 
-                    "label_off": "OFF"
+                    "label_off": "OFF",
+                    "tooltip": "Include subfolders when scanning in Folder mode"
                 }),
                 "seed": ("INT", {
                     "default": 0, 
                     "min": 0, 
-                    "max": 0xffffffffffffffff
+                    "max": 0xffffffffffffffff,
+                    "tooltip": "Random seed for reproducible selection in Folder mode"
                 }),
             },
         }

web/random_image_picker.js

@@ -23,10 +23,23 @@ app.registerExtension({
                             const imageWidget = node.widgets.find(w => w.name === "image");
                             
                             if (imageWidget) {
-                                // Update with file name (user needs to provide full path)
-                                imageWidget.value = file.name;
-                                console.log("Selected file:", file.name);
-                                alert(`File selected: ${file.name}\n\nPlease enter the full path to this file in the text field above.`);
+                                // Show selected file name
+                                const fileName = file.name;
+                                console.log("Selected file:", fileName);
+                                
+                                // Show dialog with instructions
+                                const currentPath = imageWidget.value || "";
+                                const dialogText = `File selected: ${fileName}\n\n` +
+                                    `⚠️ IMPORTANT:\n` +
+                                    `Due to browser security, the full path cannot be automatically detected.\n\n` +
+                                    `Please copy and paste the FULL PATH to this file in the 'image' field above.\n\n` +
+                                    `Example:\n` +
+                                    `D:\\Images\\${fileName}\n` +
+                                    `or\n` +
+                                    `C:\\Users\\YourName\\Pictures\\${fileName}\n\n` +
+                                    `Current default: ${currentPath || '(not set)'}`;
+                                
+                                alert(dialogText);
                             }
                         }
                     };