feat(hermes): add base model config

tests/hermes-config-page-ui.test.js

@@ -58,6 +58,17 @@ test('Hermes 配置页会暴露快捷命令结构化配置字段', () => {
   }
 })
 
+test('Hermes 配置页会暴露基础模型结构化配置字段', () => {
+  for (const id of [
+    'hm-model-config-save',
+    'hm-model-default',
+    'hm-model-provider',
+    'hm-model-base-url',
+  ]) {
+    assert.match(source, new RegExp(`id="${id}"`), `缺少 ${id}`)
+  }
+})
+
 test('Hermes 配置页会暴露 provider 超时覆盖结构化配置字段', () => {
   for (const id of [
     'hm-provider-overrides-save',

tests/hermes-model-config.test.js

@@ -0,0 +1,90 @@
+import test from 'node:test'
+import assert from 'node:assert/strict'
+
+import {
+  buildHermesModelConfigValues,
+  mergeHermesModelConfig,
+} from '../scripts/dev-api.js'
+
+test('Hermes 基础模型配置读取会提供默认值并兼容 model.model', () => {
+  assert.deepEqual(buildHermesModelConfigValues({}), {
+    modelDefault: '',
+    modelProvider: 'auto',
+    modelBaseUrl: '',
+  })
+
+  const values = buildHermesModelConfigValues({
+    model: {
+      model: 'anthropic/claude-sonnet-4-6',
+      provider: 'openrouter',
+      base_url: 'https://openrouter.ai/api/v1',
+    },
+  })
+
+  assert.deepEqual(values, {
+    modelDefault: 'anthropic/claude-sonnet-4-6',
+    modelProvider: 'openrouter',
+    modelBaseUrl: 'https://openrouter.ai/api/v1',
+  })
+})
+
+test('Hermes 基础模型配置保存会保留未知字段并写入 model.default/provider/base_url', () => {
+  const next = mergeHermesModelConfig({
+    model: {
+      default: 'old-model',
+      provider: 'auto',
+      base_url: 'https://old.example/v1',
+      auth_mode: 'env',
+      context_length: 200000,
+    },
+    memory: { memory_enabled: true },
+  }, {
+    modelDefault: 'anthropic/claude-opus-4.6',
+    modelProvider: 'openrouter',
+    modelBaseUrl: 'https://openrouter.ai/api/v1',
+  })
+
+  assert.deepEqual(next.memory, { memory_enabled: true })
+  assert.equal(next.model.default, 'anthropic/claude-opus-4.6')
+  assert.equal(next.model.provider, 'openrouter')
+  assert.equal(next.model.base_url, 'https://openrouter.ai/api/v1')
+  assert.equal(next.model.auth_mode, 'env')
+  assert.equal(next.model.context_length, 200000)
+})
+
+test('Hermes 基础模型配置保存空 base_url 会删除该字段但保留 model 其它字段', () => {
+  const next = mergeHermesModelConfig({
+    model: {
+      default: 'old-model',
+      provider: 'custom',
+      base_url: 'https://old.example/v1',
+      max_tokens: 8192,
+    },
+    display: { language: 'zh' },
+  }, {
+    modelDefault: 'google/gemini-3-flash-preview',
+    modelProvider: 'auto',
+    modelBaseUrl: '  ',
+  })
+
+  assert.equal(next.model.default, 'google/gemini-3-flash-preview')
+  assert.equal(next.model.provider, 'auto')
+  assert.equal(Object.hasOwn(next.model, 'base_url'), false)
+  assert.equal(next.model.max_tokens, 8192)
+  assert.deepEqual(next.display, { language: 'zh' })
+})
+
+test('Hermes 基础模型配置保存会拒绝空模型和字段类型错误', () => {
+  assert.throws(
+    () => mergeHermesModelConfig({}, { modelDefault: '  ', modelProvider: 'auto' }),
+    /model\.default/,
+  )
+  assert.throws(
+    () => mergeHermesModelConfig({}, { modelDefault: 'gpt-5', modelProvider: 123 }),
+    /model\.provider/,
+  )
+  assert.throws(
+    () => mergeHermesModelConfig({}, { modelDefault: 'gpt-5', modelProvider: 'auto', modelBaseUrl: 123 }),
+    /model\.base_url/,
+  )
+})