feat(claude-code): role-based model mapping with display names and 1M flag

- Replace the four flat env inputs with a Sonnet/Opus/Haiku role table.
  Each row exposes ANTHROPIC_DEFAULT_*_MODEL plus a new display name
  field ANTHROPIC_DEFAULT_*_MODEL_NAME, and Sonnet/Opus gain a
  "Declare 1M" checkbox that toggles the [1M] suffix.
- Strip the [1M] context-capability marker before forwarding non-Copilot
  requests upstream. Copilot keeps its existing [1m]->-1m normalization.
- Claude Desktop import now consumes ANTHROPIC_DEFAULT_*_MODEL_NAME as
  label_override, closing the Claude Code -> Claude Desktop displayName
  pipeline; add_route's merge logic is shared between hashmap branches.
- Unify the [1M] marker as ONE_M_CONTEXT_MARKER across
  claude_desktop_config and proxy::model_mapper; rename the strip
  helper to strip_one_m_suffix_for_upstream.
- Collapse useModelState's seven duplicated useState initializers and
  the useEffect parse block into a single parseModelsFromConfig call.
- Add tests/hooks/useModelState.test.tsx and a Claude Desktop import
  test covering Kimi K2 -> label_override. i18n (en/ja/zh) updated.

src-tauri/src/proxy/forwarder.rs

@@ -803,6 +803,14 @@ impl RequestForwarder {
             .and_then(|meta| meta.is_full_url)
             .unwrap_or(false);
 
+        // GitHub Copilot API 使用 /chat/completions（无 /v1 前缀）
+        let is_copilot = provider
+            .meta
+            .as_ref()
+            .and_then(|m| m.provider_type.as_deref())
+            == Some("github_copilot")
+            || base_url.contains("githubcopilot.com");
+
         // 应用模型映射（独立于格式转换）
         // Claude Desktop proxy 模式必须先把 Desktop 可见的 claude-* route
         // 映射成真实上游模型名，并且未知 route 要直接报错，不能使用默认模型兜底。
@@ -818,20 +826,14 @@ impl RequestForwarder {
         // 与 CCH 对齐：请求前不做 thinking 主动改写（仅保留兼容入口）
         let mut mapped_body = normalize_thinking_type(mapped_body);
 
-        // 确定有效端点
-        // GitHub Copilot API 使用 /chat/completions（无 /v1 前缀）
-        let is_copilot = provider
-            .meta
-            .as_ref()
-            .and_then(|m| m.provider_type.as_deref())
-            == Some("github_copilot")
-            || base_url.contains("githubcopilot.com");
-
         if is_copilot {
             mapped_body =
                 super::providers::copilot_model_map::apply_copilot_model_normalization(mapped_body);
             self.apply_copilot_live_model_resolution(provider, &mut mapped_body)
                 .await;
+        } else {
+            mapped_body =
+                super::model_mapper::strip_one_m_suffix_for_upstream_from_body(mapped_body);
         }
 
         // --- Copilot 优化器：分类 + 请求体优化（在格式转换之前执行） ---