优化 API 配置：一个弹窗完成接口、Key 与模型选择

- 去掉预设供应商，直接选择接口类型并填写 Base URL、API Key
- 可在保存前从接口拉取模型，搜索并勾选多个；也可手动输入模型名
- 适配中转站：漏写 /v1（Gemini 为 /v1beta）时自动补全，同时发送 Bearer 与官方鉴权头
- 保存时服务端同步连接下的模型列表；编辑时不填 Key 也可拉取
- 单模型测试与参数设置；手机端布局优化

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

server/api/providers/[id].put.ts

@@ -2,21 +2,32 @@ import { eq } from 'drizzle-orm'
 import { z } from 'zod'
 
 const schema = z.object({
-  name: z.string().min(1).optional(),
+  name: z.string().optional(),
   type: z.enum(['openai-compatible', 'anthropic', 'google']).optional(),
   baseUrl: z.string().optional(),
   // 不传或传空字符串表示保留原有密钥
-  apiKey: z.string().optional()
+  apiKey: z.string().optional(),
+  // 传入时把该连接下的模型同步为这个列表
+  models: z.array(z.string()).optional()
 })
 
 export default defineEventHandler(async (event) => {
   const id = param(event)
   const body = await readJson(event, schema)
-  const patch: Partial<typeof tables.providers.$inferInsert> = {}
-  if (body.name !== undefined) patch.name = body.name
-  if (body.type !== undefined) patch.type = body.type
-  if (body.baseUrl !== undefined) patch.baseUrl = body.baseUrl.trim()
+  const db = useDb()
+  const current = db.select().from(tables.providers).where(eq(tables.providers.id, id)).get()
+  if (!current) throw createError({ statusCode: 404, message: 'API 连接不存在' })
+
+  const type = body.type ?? current.type
+  const baseUrl = body.baseUrl !== undefined ? body.baseUrl.trim() : current.baseUrl
+  const patch: Partial<typeof tables.providers.$inferInsert> = { type, baseUrl }
+  if (body.name !== undefined) patch.name = body.name.trim() || defaultProviderName(type, baseUrl)
   if (body.apiKey) patch.apiKeyEnc = encryptSecret(body.apiKey.trim())
-  useDb().update(tables.providers).set(patch).where(eq(tables.providers.id, id)).run()
-  return { ok: true }
+
+  let result = { added: 0, removed: 0 }
+  db.transaction(() => {
+    db.update(tables.providers).set(patch).where(eq(tables.providers.id, id)).run()
+    if (body.models) result = syncProviderModels(id, body.models)
+  })
+  return { ok: true, ...result }
 })