Fix: wait for settled Svelte test variants

Reuse the shared mount-aware cycling helper before subsequent clicks and reload. Keep the DeepSeek request limits scoped to that provider so other provider defaults stay unchanged.

Prepared with AI assistance under maintainer direction.

tests/live-e2e/agents/llm-agent.mjs

@@ -620,10 +620,10 @@ export async function createLlmAgent(opts = {}) {
         max_tokens: 4096,
         system: systemBlocks(STEER_SYSTEM_INSTRUCTIONS),
         messages: [{ role: 'user', content: userMessage }],
-      }, {
+      }, provider === 'deepseek' ? {
         maxRetries: LLM_REQUEST_MAX_RETRIES,
         timeout: MANUAL_EDIT_REQUEST_TIMEOUT_MS,
-      });
+      } : {});
 
       const cacheRead = response.usage?.cache_read_input_tokens ?? 0;
       const inputTokens = response.usage?.input_tokens ?? 0;