feat(ui-models): drop the provider-scoped reasoning effort, and red-flag a bad route id

**Reasoning effort leaves the provider cards entirely.** It is a per-MODEL
capability and the models under one provider disagree about which levels
they accept: setting `anthropic` to `max` made six of its eight models
throw UNSUPPORTED_REASONING_EFFORT, and because the catalog build catches
per provider, the whole provider vanished from the picker behind one error
row. A provider-scoped control can only ever be set to a value some of its
models reject.

The composer's model picker already offers each model its own levels, and
a switch there now records provider, model, and effort together as the
next session's default — so the setting has a better home at the right
granularity. The profile field stays in `settings.yaml` for a deployment
that knows its route; only the control is gone, from both cards and both
adapter families. Two `components.spec` cases used the control as the
vehicle for their op assertions and now use `baseURL`, which is what they
were actually testing.

**A rejected Provider ID now reads as a fault.** It shared the neutral
hint paragraph with the field's guidance, so the copy telling the user
what they got wrong looked like advice. Reuses the existing `.error`
style, matching the split the key field already makes.

apps/web/tests/models-settings.e2e.ts

@@ -159,23 +159,23 @@ describe('web e2e: Models settings page configures a dormant provider', () => {
     const dialog = page.getByRole('dialog', { name: '设置' })
     await dialog.getByRole('button', { name: '编辑 minimax-cn' }).click()
     await dialog.getByText('自定义设置').click()
-    const effort = dialog.getByLabel('推理强度')
-    await effort.waitFor({ timeout: 10_000 })
-    await effort.selectOption('high')
+    const url = dialog.getByLabel('API 地址')
+    await url.waitFor({ timeout: 10_000 })
+    await url.fill('https://gateway.minimax.example/v1')
     await dialog.getByRole('button', { name: '保存', exact: true }).click()
     // The editor closes back to the row; the fold's write merged into the
     // stored profile beside the reference.
-    await expect.poll(async () => dialog.getByLabel('推理强度').count(), { timeout: 10_000 }).toBe(0)
+    await expect.poll(async () => dialog.getByLabel('API 地址').count(), { timeout: 10_000 }).toBe(0)
     await dialog.getByText('已保存 minimax-cn。', { exact: true }).waitFor({ timeout: 10_000 })
     const document = await readFile(join(scaffold.harnessHome, 'settings.yaml'), 'utf8')
-    expect(document).toContain('reasoning: high')
+    expect(document).toContain('baseURL: https://gateway.minimax.example/v1')
     expect(document).toContain('apiKeyEnv: MINIMAX_CN_API_KEY')
     const snapshot = await captureStableAria(page, '[role="dialog"]', scaffold.workspaceCwd)
     await compareOrRefreshGolden(CONFIGURED_EXPECTED, snapshot, MODE)
     expect(tripwire.pageErrors).toEqual([])
   }, 60_000)
 
-  it('declares a route the adapter does not ship, without a reasoning control', async () => {
+  it('declares a route the adapter does not ship', async () => {
     onTestFailed(() => saveFailureShot(page, 'web-e2e-models-declare'))
     const dialog = page.getByRole('dialog', { name: '设置' })
     const declare = dialog.getByRole('button', { name: '添加自定义提供方' })
@@ -184,9 +184,9 @@ describe('web e2e: Models settings page configures a dormant provider', () => {
     await dialog.getByLabel('Provider ID').fill('acme-gateway')
     await dialog.getByLabel('显示名称').fill('Acme Gateway')
     await dialog.getByLabel('API 地址').fill('https://gateway.acme.example/v1')
-    // No reasoning effort anywhere for a hand-declared route: its models carry
-    // no reasoning capability, so a profile effort would make every model on
-    // the route fail to resolve and drop the provider out of the picker.
+    // No reasoning effort on a provider card at all: effort is a per-model
+    // capability, the models under one provider disagree about it, and a
+    // switch in the composer already records provider+model+effort together.
     expect(await dialog.getByLabel('推理强度').count()).toBe(0)
     await dialog.getByRole('button', { name: '添加模型' }).click()
     await dialog.getByLabel('模型 ID 1').fill('acme-large')

apps/web/tests/snapshots/onboarding-deepseek-config/models.expected.md

@@ -25,12 +25,6 @@
         - text: 自定义设置 API 地址
         - textbox "API 地址":
           - /placeholder: https://api.deepseek.com
-        - text: 推理强度
-        - combobox "推理强度":
-          - option "默认" [selected]
-          - option "off"
-          - option "high"
-          - option "max"
         - region "模型目录":
           - text: 模型目录 已自定义模型目录
           - button "恢复默认模型"