refactor(mcp): 统一输入框为 FormInput 组件

- FormInput 的 disabled/onkeydown 加 #[props(default)]，简化简单场景调用
- /admin/mcp 两处裸 input（名称、令牌明文）迁移到 FormInput
- 移除 mcp.rs 对 INPUT_CLASS 常量的直接依赖

src/components/forms.rs

@@ -314,7 +314,7 @@ pub fn FormSelect<T: Clone + PartialEq + 'static>(
 /// - `r#type`：input 类型（如 `"text"`、`"email"`、`"password"`）
 /// - `placeholder`：占位提示文本
 /// - `value`：当前值
-/// - `disabled`：是否禁用
+/// - `disabled`：是否禁用（可选，缺省 `false`）
 /// - `oninput`：输入事件回调，返回新的字符串值
 /// - `onkeydown`：可选的键盘事件回调
 #[component]
@@ -323,8 +323,10 @@ pub fn FormInput(
     r#type: &'static str,
     placeholder: &'static str,
     value: String,
+    #[props(default)]
     disabled: bool,
     oninput: EventHandler<String>,
+    #[props(default)]
     onkeydown: Option<EventHandler<KeyboardEvent>>,
 ) -> Element {
     let disabled_class = if disabled {

src/pages/admin/mcp.rs

@@ -21,7 +21,7 @@ use crate::api::mcp_tokens::{
     McpClientConfigs, McpConfigSnippet, TokenLifetime,
 };
 #[cfg(target_arch = "wasm32")]
-use crate::components::forms::{FormSelect, INPUT_CLASS};
+use crate::components::forms::{FormInput, FormSelect};
 #[cfg(target_arch = "wasm32")]
 use crate::components::skeletons::atoms::SkeletonBox;
 #[cfg(target_arch = "wasm32")]
@@ -427,12 +427,11 @@ fn CreateTokenCard() -> Element {
                 // 名称
                 div { class: "flex flex-col gap-2",
                     label { class: "text-sm font-medium text-[var(--color-paper-secondary)]", "名称" }
-                    input {
-                        class: "{INPUT_CLASS}",
+                    FormInput {
                         r#type: "text",
                         placeholder: "如 claude-code-macbook",
-                        value: "{name()}",
-                        oninput: move |e| name.set(e.value()),
+                        value: name(),
+                        oninput: move |v: String| name.set(v),
                     }
                 }
                 // 作用域
@@ -542,12 +541,11 @@ fn ConfigCard() -> Element {
 
             div { class: "flex flex-col gap-2",
                 label { class: "text-sm font-medium text-[var(--color-paper-secondary)]", "令牌明文" }
-                input {
-                    class: "{INPUT_CLASS}",
+                FormInput {
                     r#type: "text",
                     placeholder: "ygg_...",
-                    value: "{manual_token()}",
-                    oninput: move |e| on_manual_input(e.value()),
+                    value: manual_token(),
+                    oninput: move |v: String| on_manual_input(v),
                 }
             }