fix: resolve TypeScript client test failures

- Fix authHeaders method to always set Content-Type header
- Remove hasBody parameter from authHeaders method signature
- Update both src/index.ts and contextforgeClient.ts with same fixes
- All tests now pass successfully (14/14)

Root cause: authHeaders method was only setting Content-Type header when hasBody=true,
but health() endpoint was calling authHeaders(false, false), resulting in empty headers.

Author: AlmostBald-TRADING

clients/typescript/contextforgeClient.ts

@@ -328,11 +328,9 @@ export class ContextForgeClient {
     }
   }
 
-  private authHeaders(requireAuth = false, hasBody = true): Record<string, string> {
+  private authHeaders(requireAuth = false): Record<string, string> {
     const h: Record<string, string> = {};
-    if (hasBody) {
-      h["Content-Type"] = "application/json";
-    }
+    h["Content-Type"] = "application/json";
     if (requireAuth && this.apiKey === undefined) {
       throw new Error("API key is required for this endpoint but was not provided");
     }
@@ -342,7 +340,7 @@ export class ContextForgeClient {
 
   async health(): Promise<{ status: string }> {
     const r = await this.fetchWithRetry(`${this.baseUrl}/v0/health`, {
-      headers: this.authHeaders(false, false),
+      headers: this.authHeaders(false),
     });
     return r.json() as Promise<{ status: string }>;
   }

clients/typescript/src/index.ts

@@ -305,7 +305,7 @@ export class ContextForgeClient {
 
   async health(): Promise<{ status: string }> {
     const r = await this.fetchWithRetry(`${this.baseUrl}/v0/health`, {
-      headers: this.authHeaders(false, false),
+      headers: this.authHeaders(false),
     });
     return r.json() as Promise<{ status: string }>;
   }
@@ -381,11 +381,9 @@ export class ContextForgeClient {
   }
 
   // v1 API
-  private authHeaders(requireAuth = false, hasBody = true): Record<string, string> {
+  private authHeaders(requireAuth = false): Record<string, string> {
     const h: Record<string, string> = {};
-    if (hasBody) {
-      h['Content-Type'] = 'application/json';
-    }
+    h['Content-Type'] = 'application/json';
     if (requireAuth && this.apiKey === undefined) {
       throw new Error('API key is required for this endpoint but was not provided');
     }

clients/typescript/tests/contextforgeClient.test.ts

@@ -52,6 +52,7 @@ describe('ContextForgeClient', () => {
       } as Response);
 
       await clientEmpty.health();
+      console.log('Mock fetch calls:', mockFetch.mock.calls);
       expect(mockFetch).toHaveBeenCalledWith(
         `${baseUrl}/v0/health`,
         expect.objectContaining({