feat: remove legacy OpenCode runtime

Cut product flows over to Coding/Pi and retain only the migration-owned v1 boundary. Promote supported native optional packages because electron-builder omitted pnpm transitive optional closure from the packaged ASAR.

tests/unit/model-options.test.ts

@@ -7,7 +7,6 @@ import {
   resolveRuntimeProviderKey,
 } from '../../src/lib/model-options';
 import type { ProviderAccount, ProviderVendorInfo, ProviderWithKeyInfo } from '../../src/lib/providers';
-import type { OpencodeRuntimeConfigSummary } from '../../src/types/opencode';
 
 const now = '2026-04-28T00:00:00.000Z';
 
@@ -158,23 +157,7 @@ describe('model option helpers', () => {
       [status('niancode-user-models')],
       'niancode-user-models',
     );
-    const runtimeSummary: OpencodeRuntimeConfigSummary = {
-      model: 'niancode-user-models/qwen3.6-plus',
-      smallModel: null,
-      providerIds: ['niancode-user-models'],
-      providerCount: 1,
-      providers: [
-        {
-          id: 'niancode-user-models',
-          name: 'Makelore Models',
-          modelIds: ['qwen3.6-plus'],
-          hasApiKey: true,
-          headerNames: [],
-        },
-      ],
-    };
-
-    expect(getConfiguredModelCapabilityLabel(option, runtimeSummary)).toBe('多模态');
+    expect(getConfiguredModelCapabilityLabel(option)).toBe('多模态');
   });
 
   it('exposes only imported Works Square models when that account is available', () => {