diff --git a/api/wevia-sse-orchestrator.php b/api/wevia-sse-orchestrator.php
index b59c978d1..1d9e85417 100644
--- a/api/wevia-sse-orchestrator.php
+++ b/api/wevia-sse-orchestrator.php
@@ -185,7 +185,20 @@ if (!empty($msg)) {
             if (!$__sd_safe) continue;
             // DOCTRINE-215 opus-phase74 - inject MSG env for cmd extraction
             $__sd_env = 'MSG=' . escapeshellarg($__sd_msg) . ' ';
-            $__sd_out = @shell_exec($__sd_env . 'timeout 90 bash -c ' . escapeshellarg($__sd_cmd) . ' 2>&1');
+            // DOCTRINE-216 opus-phase75 - async long intents to bypass CF 504
+            $__sd_long_intents = ['wevia_gemini_ux_apply', 'wevia_gemini_ux_fix', 'wevia_playwright_ux_overlap_gemini_audit'];
+            if (in_array($__sd_info['name'] ?? '', $__sd_long_intents)) {
+                // Background exec + return task_id immediate
+                $__sd_task_id = 'task_' . bin2hex(random_bytes(5));
+                $__sd_task_out = "/tmp/wevia-tasks/{$__sd_task_id}.out";
+                $__sd_task_flag = "/tmp/wevia-tasks/{$__sd_task_id}.flag";
+                @mkdir('/tmp/wevia-tasks', 0777, true);
+                $__sd_full_cmd = $__sd_env . 'timeout 180 bash -c ' . escapeshellarg($__sd_cmd);
+                @exec("nohup bash -c " . escapeshellarg("$__sd_full_cmd > $__sd_task_out 2>&1; touch $__sd_task_flag") . " > /dev/null 2>&1 &");
+                $__sd_out = "ASYNC_LAUNCHED task_id=$__sd_task_id\nPoll: /api/wevia-async-exec.php?poll=$__sd_task_id\nIntent {$__sd_info['name']} running in background (90-180s).";
+            } else {
+                $__sd_out = @shell_exec($__sd_env . 'timeout 90 bash -c ' . escapeshellarg($__sd_cmd) . ' 2>&1');
+            }
             sse([
                 'type' => 'exec',
                 'text' => "Intent '{$__sd_info['name']}' executed (trigger tokens matched: $__sd_trg)\n" . trim((string)$__sd_out),