chore: import upstream snapshot with attribution

clis/codex/extract-diff.js

@@ -0,0 +1,45 @@
+import { cli, Strategy } from '@jackwener/opencli/registry';
+export const extractDiffCommand = cli({
+    site: 'codex',
+    name: 'extract-diff',
+    access: 'read',
+    description: 'Extract visual code review diff patches from Codex',
+    domain: 'localhost',
+    strategy: Strategy.UI,
+    browser: true,
+    columns: ['File', 'Diff'],
+    func: async (page) => {
+        const diffs = await page.evaluate(`
+      (function() {
+        const results = [];
+        // Assuming diffs are rendered with standard diff classes or monaco difference editors
+        const diffBlocks = document.querySelectorAll('.diff-editor, .monaco-diff-editor, [data-testid="diff-view"]');
+        
+        diffBlocks.forEach((block, index) => {
+            // Very roughly scrape text representing additions/deletions mapped from the inner wrapper
+            results.push({
+                File: block.getAttribute('data-filename') || \`DiffBlock_\${index+1}\`,
+                Diff: block.innerText || block.textContent
+            });
+        });
+
+        // If no structured diffs found, try to find any code blocks labeled as patches
+        if (results.length === 0) {
+            const codeBlocks = document.querySelectorAll('pre code.language-diff, pre code.language-patch');
+            codeBlocks.forEach((code, index) => {
+                results.push({
+                    File: \`Patch_\${index+1}\`,
+                    Diff: code.innerText || code.textContent
+                });
+            });
+        }
+        
+        return results;
+      })()
+    `);
+        if (diffs.length === 0) {
+            return [{ File: 'No diffs found', Diff: 'Try running opencli codex send "/review" first' }];
+        }
+        return diffs;
+    },
+});