Improve Cluster Dashboard Timeline (#1)

Reviewed-on: tanztee/hyprcrd#1

public/index.php

@@ -1005,6 +1005,55 @@ if (str_starts_with($route, '/api/')) {
     if ($route === '/api/caldav/sync' && $method === 'POST') {
         echo json_encode($caldav->sync()); exit;
     }
+    // ── Oumta dashboard proxy ──
+    // Browser talks to /api/dashboard/* same-origin; we forward everything
+    // after that prefix to OUMTA_DASHBOARD_URL. Keeps CORS out of the
+    // browser, lets the dashboard live on a private network, and keeps any
+    // bearer token server-side. No SSE / streaming here: the response is
+    // buffered whole, so the plugin uses its polling fallback.
+    if (str_starts_with($route, '/api/dashboard/')) {
+        $upstreamPath = substr($route, strlen('/api/dashboard'));
+        $upstream = rtrim(OUMTA_DASHBOARD_URL, '/') . $upstreamPath;
+        $query = $_SERVER['QUERY_STRING'] ?? '';
+        if ($query !== '') $upstream .= '?' . $query;
+
+        $headers = ['Accept: application/json'];
+        if (OUMTA_DASHBOARD_TOKEN !== '') {
+            $headers[] = 'Authorization: Bearer ' . OUMTA_DASHBOARD_TOKEN;
+        }
+
+        $ch = curl_init($upstream);
+        curl_setopt_array($ch, [
+            CURLOPT_RETURNTRANSFER => true,
+            CURLOPT_CUSTOMREQUEST  => $method,
+            CURLOPT_TIMEOUT        => 15,
+        ]);
+        if ($method !== 'GET' && $method !== 'HEAD') {
+            $body = file_get_contents('php://input');
+            if ($body !== '' && $body !== false) {
+                curl_setopt($ch, CURLOPT_POSTFIELDS, $body);
+                $headers[] = 'Content-Type: ' . ($_SERVER['CONTENT_TYPE'] ?? 'application/json');
+            }
+        }
+        curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
+        hyprcrdApplySafeCurlOpts($ch);
+        $resp   = curl_exec($ch);
+        $status = curl_getinfo($ch, CURLINFO_HTTP_CODE);
+        $ct     = curl_getinfo($ch, CURLINFO_CONTENT_TYPE);
+        $err    = curl_error($ch);
+        curl_close($ch);
+
+        if ($status === 0) {
+            http_response_code(502);
+            echo json_encode(['error' => 'dashboard upstream unreachable', 'detail' => APP_DEBUG ? $err : '']);
+            exit;
+        }
+        http_response_code($status);
+        if ($ct) header('Content-Type: ' . $ct);
+        echo $resp;
+        exit;
+    }
+
     // ── Relay ──
 
     if ($route === '/api/relay/settings' && $method === 'GET') {