refactor(claude-desktop): drop displayName from model route schema

Claude Desktop's new model menu reads model IDs directly and ignores the
display_name field, so a separate displayName slot added UI noise without
any product value. Collapse the routeId / model / displayName tuple down
to routeId / model, and let the route ID carry the user-visible name
through a non-editable claude- prefix rendered next to the input.

Drop display_name from ClaudeDesktopModelRoute, ClaudeDesktopDefaultRoute,
and ResolvedModelRoute on the Rust side plus the matching TS interfaces,
stop emitting it in /v1/models responses, derive route IDs from upstream
model IDs when picked via the model dropdown, and update zh/en/ja copy to
describe the new two-field layout.

src-tauri/src/claude_desktop_config.rs

@@ -28,7 +28,6 @@ const ONE_M_CONTEXT_SUFFIX: &str = " [1M]";
 pub struct ClaudeDesktopDefaultRoute {
     pub route_id: &'static str,
     pub env_key: &'static str,
-    pub display_name: &'static str,
     #[serde(rename = "supports1m")]
     pub supports_1m: bool,
 }
@@ -37,19 +36,16 @@ pub const DEFAULT_PROXY_ROUTES: &[ClaudeDesktopDefaultRoute] = &[
     ClaudeDesktopDefaultRoute {
         route_id: "claude-sonnet-4-6",
         env_key: "ANTHROPIC_DEFAULT_SONNET_MODEL",
-        display_name: "Sonnet",
         supports_1m: true,
     },
     ClaudeDesktopDefaultRoute {
         route_id: "claude-opus-4-7",
         env_key: "ANTHROPIC_DEFAULT_OPUS_MODEL",
-        display_name: "Opus",
         supports_1m: true,
     },
     ClaudeDesktopDefaultRoute {
         route_id: "claude-haiku-4-5",
         env_key: "ANTHROPIC_DEFAULT_HAIKU_MODEL",
-        display_name: "Haiku",
         supports_1m: true,
     },
 ];
@@ -96,7 +92,6 @@ pub struct ClaudeDesktopStatus {
 pub struct ResolvedModelRoute {
     pub route_id: String,
     pub upstream_model: String,
-    pub display_name: Option<String>,
     pub supports_1m: bool,
 }
 
@@ -518,7 +513,6 @@ pub fn proxy_model_routes(provider: &Provider) -> Result<Vec<ResolvedModelRoute>
         result.push(ResolvedModelRoute {
             route_id: desktop_model_id(&route_id, supports_1m),
             upstream_model: upstream_model_id(upstream_model, supports_1m),
-            display_name: route.display_name.clone(),
             supports_1m,
         });
     }
@@ -546,7 +540,6 @@ pub fn model_list_response(provider: &Provider) -> Result<Value, AppError> {
             let mut item = json!({
                 "type": "model",
                 "id": model_id,
-                "display_name": route.display_name.as_deref().unwrap_or(&route.route_id),
                 "created_at": DEFAULT_CREATED_AT,
             });
             if route.supports_1m {
@@ -1065,7 +1058,6 @@ mod tests {
                 "claude-sonnet-4-6".to_string(),
                 ClaudeDesktopModelRoute {
                     model: "kimi-k2".to_string(),
-                    display_name: Some("Kimi".to_string()),
                     supports_1m: Some(true),
                 },
             )]),
@@ -1083,7 +1075,6 @@ mod tests {
                 "claude-deepseek-chat".to_string(),
                 ClaudeDesktopModelRoute {
                     model: "claude-deepseek-chat".to_string(),
-                    display_name: Some("DeepSeek".to_string()),
                     supports_1m: Some(true),
                 },
             )]),

src-tauri/src/commands/provider.rs

@@ -255,7 +255,6 @@ fn suggested_claude_desktop_routes(
         env: &serde_json::Map<String, serde_json::Value>,
         route_id: &str,
         env_key: &str,
-        display_name: &str,
     ) {
         if let Some(model) = env
             .get(env_key)
@@ -267,7 +266,6 @@ fn suggested_claude_desktop_routes(
                 route_id.to_string(),
                 crate::provider::ClaudeDesktopModelRoute {
                     model: model.to_string(),
-                    display_name: Some(display_name.to_string()),
                     supports_1m: Some(true),
                 },
             );
@@ -275,24 +273,12 @@ fn suggested_claude_desktop_routes(
     }
 
     for spec in crate::claude_desktop_config::DEFAULT_PROXY_ROUTES {
-        add_route(
-            &mut routes,
-            env,
-            spec.route_id,
-            spec.env_key,
-            spec.display_name,
-        );
+        add_route(&mut routes, env, spec.route_id, spec.env_key);
     }
 
     let primary_route = crate::claude_desktop_config::DEFAULT_PROXY_ROUTES[0];
     if !routes.contains_key(primary_route.route_id) {
-        add_route(
-            &mut routes,
-            env,
-            primary_route.route_id,
-            "ANTHROPIC_MODEL",
-            primary_route.display_name,
-        );
+        add_route(&mut routes, env, primary_route.route_id, "ANTHROPIC_MODEL");
     }
 
     (!routes.is_empty()).then_some(routes)

src-tauri/src/provider.rs

@@ -230,9 +230,6 @@ pub enum ClaudeDesktopMode {
 pub struct ClaudeDesktopModelRoute {
     /// 真实上游模型名，只保存在 CC Switch 内部，不写入 Claude Desktop profile。
     pub model: String,
-    /// Desktop /v1/models 中显示的名称。
-    #[serde(skip_serializing_if = "Option::is_none")]
-    pub display_name: Option<String>,
     /// Claude Desktop 3P 识别的 1M 上下文能力标记。
     #[serde(rename = "supports1m", skip_serializing_if = "Option::is_none")]
     pub supports_1m: Option<bool>,