fix(pi): converge worker failures and thinking state

tests/unit/pi-provider-config.test.ts

@@ -179,6 +179,47 @@ describe('Pi Provider catalog', () => {
     })).toThrowError(PiProviderConfigError);
   });
 
+  it('projects the managed DeepSeek capability contract into Pi models.json', () => {
+    const provider = account({
+      id: 'niancode-user-models',
+      vendorId: 'custom',
+      apiProtocol: 'openai-completions',
+      baseUrl: 'http://127.0.0.1:54321/api/ai-proxy/v1',
+      model: 'deepseek/deepseek-v4-pro',
+      metadata: {
+        worksSquareCredentialMode: 'works_square_ai_gateway_proxy',
+        customModels: ['deepseek/deepseek-v4-pro'],
+      },
+    });
+
+    const catalog = buildPiProviderCatalog({ accounts: [provider] });
+    const descriptor = catalog.descriptors[0]!.models[0]!;
+    const written = catalog.modelsFile.providers[resolvePiRuntimeProviderId(provider.id)]!.models[0]!;
+
+    expect(descriptor).toMatchObject({
+      id: 'deepseek-v4-pro',
+      reasoning: true,
+      contextWindow: 1_000_000,
+      maxOutputTokens: 384_000,
+      compat: {
+        thinkingFormat: 'deepseek',
+        requiresReasoningContentOnAssistantMessages: true,
+      },
+      thinkingLevelMap: {
+        off: null,
+        minimal: null,
+        low: null,
+        medium: null,
+        high: 'high',
+      },
+    });
+    expect(written).toMatchObject({
+      reasoning: true,
+      thinkingLevelMap: descriptor.thinkingLevelMap,
+      compat: descriptor.compat,
+    });
+  });
+
   it('does not replace an existing catalog when model selection is unavailable', async () => {
     const root = await mkdtemp(path.join(tmpdir(), 'makelore-pi-provider-'));
     temporaryRoots.push(root);