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/server/src/controllers/hermes/models.ts

@@ -10,10 +10,57 @@ import { MODEL_CONTEXT_TABLE } from '../../db/hermes/schemas'
 
 const PROVIDER_MODEL_CATALOG = buildProviderModelMap()
 
-type ModelMeta = { preview?: boolean; disabled?: boolean }
+type ModelMeta = { preview?: boolean; disabled?: boolean; alias?: string }
 type AvailableGroup = { provider: string; label: string; base_url: string; models: string[]; api_key: string; builtin?: boolean; model_meta?: Record<string, ModelMeta>; available_models?: string[] }
 type ModelVisibility = Record<string, ModelVisibilityRule>
 
+const RESERVED_ALIAS_KEYS = new Set(['__proto__', 'prototype', 'constructor'])
+
+function isSafeAliasKey(value: string): boolean {
+  const trimmed = value.trim()
+  return !!trimmed && trimmed.length <= 512 && !RESERVED_ALIAS_KEYS.has(trimmed)
+}
+
+function createAliasMap(): Record<string, string> {
+  return Object.create(null) as Record<string, string>
+}
+
+function createProviderAliasMap(): Record<string, Record<string, string>> {
+  return Object.create(null) as Record<string, Record<string, string>>
+}
+
+function normalizeAliases(value: unknown): Record<string, Record<string, string>> {
+  const normalized = createProviderAliasMap()
+  if (!value || typeof value !== 'object' || Array.isArray(value)) return normalized
+  for (const [provider, models] of Object.entries(value as Record<string, unknown>)) {
+    if (!isSafeAliasKey(provider) || !models || typeof models !== 'object' || Array.isArray(models)) continue
+    for (const [model, alias] of Object.entries(models as Record<string, unknown>)) {
+      if (!isSafeAliasKey(model) || typeof alias !== 'string') continue
+      const trimmed = alias.trim()
+      if (!trimmed || trimmed.length > 512) continue
+      if (!Object.hasOwn(normalized, provider)) normalized[provider] = createAliasMap()
+      normalized[provider][model] = trimmed
+    }
+  }
+  return normalized
+}
+
+function applyModelAliases<T extends { provider: string; models: string[]; model_meta?: Record<string, ModelMeta> }>(groups: T[], aliases: Record<string, Record<string, string>>): T[] {
+  return groups.map((group) => {
+    const providerAliases = aliases[group.provider]
+    if (!providerAliases) return group
+    const modelMeta: Record<string, ModelMeta> = { ...(group.model_meta || {}) }
+    let changed = false
+    for (const model of group.models) {
+      const alias = providerAliases[model]
+      if (!alias) continue
+      modelMeta[model] = { ...(modelMeta[model] || {}), alias }
+      changed = true
+    }
+    return changed ? { ...group, model_meta: modelMeta } : group
+  })
+}
+
 function uniqueStrings(values: unknown): string[] {
   if (!Array.isArray(values)) return []
   return Array.from(new Set(values.map(v => String(v || '').trim()).filter(Boolean)))
@@ -158,6 +205,7 @@ export async function getAvailable(ctx: any) {
     // 时也不返回。避免误把 VS Code/gh CLI 用户的全局凭证当作 hermes provider。
     const appConfig = await readAppConfig()
     const copilotEnabled = appConfig.copilotEnabled === true
+    const modelAliases = normalizeAliases(appConfig.modelAliases)
     const modelVisibility = normalizeModelVisibility(appConfig.modelVisibility)
 
     // 兼容老用户：上一版本会"自动 fallback discovery"出 Copilot；升级后这些用户的
@@ -186,7 +234,7 @@ export async function getAvailable(ctx: any) {
       }
       const catalogModels = PROVIDER_MODEL_CATALOG[providerKey]
       let modelsList: string[] = catalogModels && catalogModels.length > 0 ? [...catalogModels] : []
-      let modelMeta: Record<string, { preview?: boolean; disabled?: boolean }> | undefined
+      let modelMeta: Record<string, ModelMeta> | undefined
       if (providerKey === 'copilot') {
         const live = await getCopilotLive()
         if (live.length > 0) {
@@ -250,7 +298,8 @@ export async function getAvailable(ctx: any) {
     }
 
     for (const g of groups) { g.models = Array.from(new Set(g.models)) }
-    const visibleGroups = applyModelVisibility(groups, modelVisibility)
+    const groupsWithAliases = applyModelAliases(groups, modelAliases)
+    const visibleGroups = applyModelVisibility(groupsWithAliases, modelVisibility)
     const visibleDefault = resolveVisibleDefault(currentDefault, currentDefaultProvider, visibleGroups)
 
     // 动态拉一次 copilot 模型用于 allProviders 展示（同一请求复用缓存）
@@ -264,6 +313,7 @@ export async function getAvailable(ctx: any) {
       base_url: p.base_url,
       models: p.value === 'copilot' && liveCopilotIds.length > 0 ? liveCopilotIds : p.models,
     }))
+    const allProviders = applyModelAliases(allProvidersBase, modelAliases)
 
     if (groups.length === 0) {
       const fallback = buildModelGroups(config)
@@ -278,13 +328,15 @@ export async function getAvailable(ctx: any) {
           api_key: '',
         }
       })
-      const visibleFallbackGroups = applyModelVisibility(fallbackGroups, modelVisibility)
+      const fallbackGroupsWithAliases = applyModelAliases(fallbackGroups, modelAliases)
+      const visibleFallbackGroups = applyModelVisibility(fallbackGroupsWithAliases, modelVisibility)
       const fallbackDefault = resolveVisibleDefault(fallback.default, currentDefaultProvider, visibleFallbackGroups)
       ctx.body = {
         default: fallbackDefault.defaultModel,
         default_provider: fallbackDefault.defaultProvider,
         groups: visibleFallbackGroups,
-        allProviders: allProvidersBase,
+        allProviders,
+        model_aliases: modelAliases,
         model_visibility: modelVisibility,
       }
       return
@@ -294,7 +346,8 @@ export async function getAvailable(ctx: any) {
       default: visibleDefault.defaultModel,
       default_provider: visibleDefault.defaultProvider,
       groups: visibleGroups,
-      allProviders: allProvidersBase,
+      allProviders,
+      model_aliases: modelAliases,
       model_visibility: modelVisibility,
     }
   } catch (err: any) {
@@ -303,6 +356,55 @@ export async function getAvailable(ctx: any) {
   }
 }
 
+
+export async function setModelAlias(ctx: any) {
+  const body = ctx.request.body
+  const provider = body && typeof body === 'object' && !Array.isArray(body) ? body.provider : undefined
+  const model = body && typeof body === 'object' && !Array.isArray(body) ? body.model : undefined
+  const alias = body && typeof body === 'object' && !Array.isArray(body) ? body.alias : undefined
+
+  if (typeof provider !== 'string' || typeof model !== 'string' || (alias !== undefined && typeof alias !== 'string')) {
+    ctx.status = 400
+    ctx.body = { error: 'Invalid provider, model, or alias' }
+    return
+  }
+
+  const cleanProvider = provider.trim()
+  const cleanModel = model.trim()
+  const cleanAlias = (alias || '').trim()
+
+  if (!isSafeAliasKey(cleanProvider) || !isSafeAliasKey(cleanModel)) {
+    ctx.status = 400
+    ctx.body = { error: 'Invalid provider or model' }
+    return
+  }
+
+  if (cleanAlias.length > 512) {
+    ctx.status = 400
+    ctx.body = { error: 'Alias is too long' }
+    return
+  }
+
+  try {
+    const appConfig = await readAppConfig()
+    const modelAliases = normalizeAliases(appConfig.modelAliases)
+    if (cleanAlias) {
+      if (!Object.hasOwn(modelAliases, cleanProvider)) modelAliases[cleanProvider] = createAliasMap()
+      modelAliases[cleanProvider][cleanModel] = cleanAlias
+    } else {
+      if (Object.hasOwn(modelAliases, cleanProvider)) delete modelAliases[cleanProvider][cleanModel]
+      if (Object.hasOwn(modelAliases, cleanProvider) && Object.keys(modelAliases[cleanProvider]).length === 0) {
+        delete modelAliases[cleanProvider]
+      }
+    }
+    await writeAppConfig({ modelAliases })
+    ctx.body = { success: true, model_aliases: modelAliases }
+  } catch (err: any) {
+    ctx.status = 500
+    ctx.body = { error: err.message }
+  }
+}
+
 export async function getConfigModels(ctx: any) {
   try {
     const config = await readConfigYaml()