feat(models): 增加模型显示名重命名 (#614)

* feat(models): add WUI model display aliases

Persist display-only model aliases in Web UI app config, surface them in the model selector/search, and keep canonical model IDs for Hermes calls.

* fix(models): improve WUI model alias editing

* fix(models): clarify unlisted model picker

* fix(models): scope aliases to providers

packages/client/src/i18n/locales/en.ts

@@ -547,12 +547,23 @@ export default {
     previewBadge: 'PREVIEW',
     disabledBadge: 'UNAVAILABLE',
     disabledTooltip: "This model is currently unavailable for your account.",
-    customModelPlaceholder: 'Custom model name',
-    customModelHint: 'Enter to load',
+    customModelPlaceholder: 'Unlisted model ID',
+    customModelHint: 'For provider-supported models not returned by the API; not a display rename. Press Enter to load.',
+    removeCustomModel: 'Remove this unlisted model',
     noProviders: 'No providers found. Add a custom provider to get started.',
     models: 'Models',
     count: 'models',
     more: 'more',
+    aliasEdit: 'Rename',
+    aliasTitle: 'Model display name',
+    aliasTitleFor: 'Display name for {model}',
+    aliasPlaceholder: 'Leave empty to use original model ID',
+    aliasHint: 'Display-only alias. Hermes still receives the canonical model ID.',
+    aliasCanonical: 'Original ID: {model}',
+    aliasUseOriginal: 'Use original ID',
+    aliasManage: 'Display names',
+    aliasManageFor: 'Display names for {provider}',
+    aliasSaveFailed: 'Failed to save display name',
     manageVisibleModels: 'Manage visible models',
     manageVisibleModelsFor: 'Manage visible models for {name}',
     visibilityHint: 'Only affects the Web UI model picker and Models page. Hermes CLI provider/model config is not rewritten; calls still use canonical model IDs.',