fix: validate monthly badge dimensions (JhaSourav07#1913)

* fix: validate monthly badge dimensions

* fix: resolve validation syntax error

Author: pari7maheshwari

app/api/streak/route.test.ts

@@ -209,6 +209,17 @@ describe('GET /api/streak', () => {
       const textOutput = await response.text();
       expect(textOutput).toContain('<svg');
     });
+
+    it('returns 400 when org contains invalid characters', async () => {
+      const response = await GET(
+        makeRequest({ user: 'octocat', org: 'invalid_org_name_with_spaces' })
+      );
+      const body = await response.json();
+
+      expect(response.status).toBe(400);
+      expect(body.details.fieldErrors.org[0]).toBe('Invalid organization name format');
+      expect(getOrgDashboardData).not.toHaveBeenCalled();
+    });
   });
 
   describe('successful response', () => {

lib/validations.test.ts

@@ -463,6 +463,18 @@ describe('streakParamsSchema — size fallback behavior', () => {
     }
   });
 
+  it('should fail when org contains invalid characters', () => {
+    const result = streakParamsSchema.safeParse({
+      user: 'octocat',
+      org: 'invalid_org_name_with_spaces',
+    });
+
+    expect(result.success).toBe(false);
+    if (!result.success) {
+      expect(result.error.flatten().fieldErrors.org?.[0]).toBe('Invalid organization name format');
+    }
+  });
+
   it('should keep org undefined when omitted', () => {
     const result = streakParamsSchema.safeParse({
       user: 'octocat',