add prompt-enhance info to metadata

Signed-off-by: Vladimir Mandic <mandic00@live.com>

CHANGELOG.md

@@ -11,6 +11,7 @@
   - **Anima** support for *img2img* and *inpaint* workflows
   - custom **VAE** loader for all pipelines  
     *note*: vae still needs to be compatible with the model  
+  - add prompt enhance info to image metadata  
 - **UI**
   - add button to manually reorient input/output panels
   - all ui panels can be minimized/maximized by clicking on their header  

scripts/prompt_enhance.py

@@ -958,6 +958,8 @@ class PromptEnhanceScript(scripts_manager.Script):
         shared.prompt_styles.apply_styles_to_extra(p)
         p.styles = []
         jobid = shared.state.begin('LLM')
+        p.extra_generation_params['LLM'] = get_model_repo_from_display(llm_model)
+        p.extra_generation_params['Original'] = p.prompt
         p.prompt = self.enhance(
             prompt=p.prompt,
             seed=p.seed,
@@ -980,5 +982,4 @@ class PromptEnhanceScript(scripts_manager.Script):
             keep_thinking=keep_thinking,
         )
         timer.process.record('prompt')
-        p.extra_generation_params['LLM'] = llm_model
         shared.state.end(jobid)