feat(hermes): add lsp diagnostic controls

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

@@ -442,6 +442,18 @@ test('Hermes 配置页会暴露 Web 工具后端结构化配置字段', () => {
   }
 })
 
+test('Hermes 配置页会暴露 LSP 语义诊断结构化配置字段', () => {
+  for (const id of [
+    'hm-lsp-save',
+    'hm-lsp-enabled',
+    'hm-lsp-wait-mode',
+    'hm-lsp-wait-timeout',
+    'hm-lsp-install-strategy',
+  ]) {
+    assert.match(source, new RegExp(`id="${id}"`), `缺少 ${id}`)
+  }
+})
+
 test('Hermes 配置页会暴露终端执行结构化配置字段', () => {
   for (const id of [
     'hm-terminal-save',

tests/hermes-lsp-config.test.js

@@ -0,0 +1,91 @@
+import test from 'node:test'
+import assert from 'node:assert/strict'
+
+import {
+  buildHermesLspConfigValues,
+  mergeHermesLspConfig,
+} from '../scripts/dev-api.js'
+
+test('Hermes LSP 配置读取会提供上游默认值', () => {
+  const values = buildHermesLspConfigValues({})
+
+  assert.deepEqual(values, {
+    lspEnabled: true,
+    lspWaitMode: 'document',
+    lspWaitTimeout: 5,
+    lspInstallStrategy: 'auto',
+  })
+})
+
+test('Hermes LSP 配置读取会回显 YAML 字段并保留复杂 servers 给 raw YAML', () => {
+  const values = buildHermesLspConfigValues({
+    lsp: {
+      enabled: false,
+      wait_mode: 'full',
+      wait_timeout: 12.5,
+      install_strategy: 'manual',
+      servers: {
+        pyright: {
+          disabled: true,
+        },
+      },
+    },
+  })
+
+  assert.equal(values.lspEnabled, false)
+  assert.equal(values.lspWaitMode, 'full')
+  assert.equal(values.lspWaitTimeout, 12.5)
+  assert.equal(values.lspInstallStrategy, 'manual')
+})
+
+test('Hermes LSP 配置保存会保留未知字段并写入上游结构', () => {
+  const next = mergeHermesLspConfig({
+    model: { provider: 'anthropic' },
+    lsp: {
+      enabled: false,
+      wait_mode: 'full',
+      wait_timeout: 12.5,
+      install_strategy: 'manual',
+      servers: {
+        pyright: {
+          disabled: true,
+        },
+      },
+      custom_flag: 'keep-lsp',
+    },
+    streaming: { enabled: true },
+  }, {
+    lspEnabled: true,
+    lspWaitMode: 'document',
+    lspWaitTimeout: 7.5,
+    lspInstallStrategy: 'off',
+  })
+
+  assert.deepEqual(next.model, { provider: 'anthropic' })
+  assert.deepEqual(next.streaming, { enabled: true })
+  assert.equal(next.lsp.enabled, true)
+  assert.equal(next.lsp.wait_mode, 'document')
+  assert.equal(next.lsp.wait_timeout, 7.5)
+  assert.equal(next.lsp.install_strategy, 'off')
+  assert.deepEqual(next.lsp.servers, { pyright: { disabled: true } })
+  assert.equal(next.lsp.custom_flag, 'keep-lsp')
+})
+
+test('Hermes LSP 配置保存会拒绝非法枚举和超时', () => {
+  assert.throws(
+    () => mergeHermesLspConfig({}, { lspWaitMode: 'workspace' }),
+    /lsp\.wait_mode/,
+  )
+  assert.throws(
+    () => mergeHermesLspConfig({}, { lspInstallStrategy: 'unsafe' }),
+    /lsp\.install_strategy/,
+  )
+  assert.throws(
+    () => mergeHermesLspConfig({}, { lspWaitTimeout: 0 }),
+    /lsp\.wait_timeout/,
+  )
+  assert.throws(
+    () => mergeHermesLspConfig({}, { lspWaitTimeout: 120.5 }),
+    /lsp\.wait_timeout/,
+  )
+})