feat(*): Add AI agent feedback

src/lib/agent/tools/essayAnalyzerTool.ts

@@ -0,0 +1,13 @@
+import { ToolUtility } from '@azure/ai-projects';
+
+export const essayAnalyzerTool = ToolUtility.createFunctionTool({
+  name: 'analyzeEssay',
+  description: 'Analyzes an essay for structure, argument, and evidence.',
+  parameters: {
+    type: 'object',
+    properties: {
+      essay: { type: 'string', description: 'The essay text' }
+    },
+    required: ['essay']
+  }
+});