feat(ui): add send-prompt-to-workflow button for prompt and negative prompt

- Add sendPromptToWorkflow() and stripLoraTags() exports to uiHelpers.js
- Add send button (paper-plane icon) to recipe modal and showcase hover panel
- Restructure showcase metadata panel layout to match recipe modal style
- Respect strip <lora:> setting before sending
- Uses 'replace' mode (not append) on text-capable workflow nodes
- Add translations for all 10 locales

static/js/components/shared/showcase/MediaUtils.js

@@ -3,7 +3,7 @@
  * Media-specific utility functions for showcase components
  * (Moved from uiHelpers.js to better organize code)
  */
-import { showToast, copyToClipboard, getNSFWLevelName } from '../../../utils/uiHelpers.js';
+import { showToast, copyToClipboard, getNSFWLevelName, sendPromptToWorkflow, stripLoraTags } from '../../../utils/uiHelpers.js';
 import { state } from '../../../state/index.js';
 import { getModelApiClient } from '../../../api/modelApiFactory.js';
 import { NSFW_LEVELS, getMatureBlurThreshold } from '../../../utils/constants.js';
@@ -318,6 +318,32 @@ export function initMetadataPanelHandlers(container) {
                 });
             });
             
+            // Handle send prompt buttons
+            const sendBtns = metadataPanel.querySelectorAll('.send-prompt-btn');
+            sendBtns.forEach(sendBtn => {
+                const promptIndex = sendBtn.dataset.promptIndex;
+                const promptElement = wrapper.querySelector(`#prompt-${promptIndex}`);
+                
+                sendBtn.addEventListener('click', async (e) => {
+                    e.stopPropagation();
+                    
+                    if (!promptElement) return;
+                    
+                    let promptText = promptElement.textContent || '';
+                    if (!promptText.trim()) {
+                        showToast('toast.recipes.noPromptToSend', {}, 'warning');
+                        return;
+                    }
+                    
+                    // Respect strip <lora> setting from global state
+                    if (state.global.settings?.strip_lora_on_copy) {
+                        promptText = stripLoraTags(promptText);
+                    }
+                    
+                    sendPromptToWorkflow(promptText);
+                });
+            });
+            
             // Prevent panel scroll from causing modal scroll
             metadataPanel.addEventListener('wheel', (e) => {
                 const isAtTop = metadataPanel.scrollTop === 0;