feat: add Gallery TUI for interactive configuration and generation

- Implemented a terminal user interface (TUI) for configuring the gallery generator using Textual.
- Included functionality to manage sources with add/remove
- Integrated a log pane to display generation output from subprocess calls.
- Implemented save functionality to persist configuration changes.

gallery/assets/js/export-manager.js

@@ -248,14 +248,11 @@ export class ExportManager {
     // Generate a unique temporary filename
     const tempFileName = `export_request_${Date.now()}.json`;
     
-    // Get work directory from config or fallback
-    const workDir = window.galleryConfig?.workDir || '/work/kschmidt/web';
-    
     // Save the request to a JSON file that can be picked up by a Python script
     const requestData = JSON.stringify(payload, null, 2);
-    
+
     // Show improved export instructions with full command
-    this.showExportInstructions(requestData, tempFileName, workDir);
+    this.showExportInstructions(requestData, tempFileName);
   }
 
   /**
@@ -274,9 +271,9 @@ export class ExportManager {
   /**
    * Show export instructions to user
    */
-  showExportInstructions(requestData, tempFileName, workDir) {
+  showExportInstructions(requestData, tempFileName) {
     const tempFilePath = `/tmp/${tempFileName}`;
-    const fullCommand = `echo '${requestData.replace(/'/g, "'\\''")}' > ${tempFilePath} && cd ${workDir} && python export_plots.py ${tempFilePath}`;
+    const fullCommand = `echo '${requestData.replace(/'/g, "'\\''")}' > ${tempFilePath} && python export_plots.py ${tempFilePath}`;
     
     const instructions = `
       <div class="export-instructions">
@@ -304,7 +301,6 @@ export class ExportManager {
           <h4>📋 Command Breakdown:</h4>
           <ul>
             <li><strong>Creates temporary file:</strong> <code>${tempFilePath}</code></li>
-            <li><strong>Changes to work directory:</strong> <code>${workDir}</code></li>
             <li><strong>Runs export script:</strong> <code>python export_plots.py</code></li>
             <li><strong>Output file:</strong> Will be saved in the work directory</li>
           </ul>