Add providers listing API endpoint

web/src/app/api/providers/route.ts

@@ -0,0 +1,30 @@
+import { NextResponse } from "next/server";
+import { getProviderDisplayInfo, checkOllamaHealth } from "@/lib/llm-providers";
+
+export const runtime = "nodejs";
+export const dynamic = "force-dynamic";
+
+export async function GET() {
+  const providers = getProviderDisplayInfo();
+  const ollamaStatus = await checkOllamaHealth();
+
+  // Update Ollama entry with live status
+  const updated = providers.map((p) => {
+    if (p.id === "ollama") {
+      return {
+        ...p,
+        hasApiKey: ollamaStatus.ok,
+        ollamaRunning: ollamaStatus.ok,
+        ollamaModels: ollamaStatus.models,
+      };
+    }
+    return p;
+  });
+
+  return NextResponse.json({
+    providers: updated,
+    totalProviders: providers.length,
+    availableProviders: updated.filter((p) => p.hasApiKey).length,
+    ollamaStatus,
+  });
+}