Show xhigh effort as Extra in the model seat; rebuild client.js

README.md

@@ -7,6 +7,7 @@ An enhanced model selector for the DeepSeek Harness (DSH) Web UI: **pinned, drag
 - Replaces the composer model seat (slot `conversation.input.model`).
 - Pin favourite models to the top and reorder them with drag and drop; pins persist in `localStorage` and sync across tabs.
 - Brand icons (Anthropic, OpenAI, Gemini, DeepSeek, Qwen, Mistral, Grok, Meta, …) matched by model id/name first, then by provider; serving platforms (OpenRouter, Bedrock, Azure, Together, …) only when the model name says nothing.
+- Friendlier effort labels: the `xhigh` level is shown as **Extra** (the stored key stays `xhigh`).
 - Shortcut to open **Settings → Models**.
 - English and Chinese strings.