fix(reports): eliminate contributor duplicates

Remove automatic sponsorUrl from monthly report contributor cards.
The component already handles sponsor buttons correctly when sponsorUrl
is provided (donations page pattern). Monthly reports now show clean
contributor recognition without fundraising CTAs.

Changes:
- Remove sponsorUrl generation from markdown generator
- Keep contributor separation (new vs continuing) to prevent duplicates
- Regenerate Dec 2025 and Jan 2026 reports with clean cards
- Minor whitespace cleanup in GitHubProfileCard component

Author: castrojo

reports/2025-12-31-report.mdx

@@ -374,42 +374,16 @@ Thank you to our continuing contributors!
 
 <GitHubProfileCard username="renner0e" />
 
-<GitHubProfileCard username="dreamyukii" />
-
 <GitHubProfileCard username="castrojo" />
 
 <GitHubProfileCard username="coxde" />
 
 <GitHubProfileCard username="sebjag" />
 
-<GitHubProfileCard username="tulilirockz" />
-
 <GitHubProfileCard username="inffy" />
 
-<GitHubProfileCard username="ahmedadan" />
-
-<GitHubProfileCard username="joshyorko" />
-
 <GitHubProfileCard username="hanthor" />
 
-<GitHubProfileCard username="KiKaraage" />
-
-<GitHubProfileCard username="theMimolet" />
-
-<GitHubProfileCard username="tunix" />
-
-<GitHubProfileCard username="jumpyvi" />
-
-<GitHubProfileCard username="eltorrero" />
-
-<GitHubProfileCard username="fizzyizzy05" />
-
-<GitHubProfileCard username="bronson" />
-
-<GitHubProfileCard username="AnthonyStainer" />
-
-<GitHubProfileCard username="wommy" />
-
 <GitHubProfileCard username="sideeffffect" />
 
 </div>

reports/2026-01-31-report.mdx

@@ -644,12 +644,8 @@ Thank you to our continuing contributors!
 
 <GitHubProfileCard username="tulilirockz" />
 
-<GitHubProfileCard username="Micro856" />
-
 <GitHubProfileCard username="castrojo" />
 
-<GitHubProfileCard username="LorbusChris" />
-
 <GitHubProfileCard username="KiKaraage" />
 
 <GitHubProfileCard username="inffy" />
@@ -660,34 +656,18 @@ Thank you to our continuing contributors!
 
 <GitHubProfileCard username="renner0e" />
 
-<GitHubProfileCard username="rwaltr" />
-
 <GitHubProfileCard username="sebjag" />
 
 <GitHubProfileCard username="coxde" />
 
 <GitHubProfileCard username="theMimolet" />
 
-<GitHubProfileCard username="rrenomeron" />
-
-<GitHubProfileCard username="ledif" />
-
 <GitHubProfileCard username="lambdaclan" />
 
-<GitHubProfileCard username="leafyoung" />
-
-<GitHubProfileCard username="AlexanderVanhee" />
-
-<GitHubProfileCard username="RaduAvramescu" />
-
-<GitHubProfileCard username="hecknt" />
-
 <GitHubProfileCard username="jumpyvi" />
 
 <GitHubProfileCard username="sideeffffect" />
 
-<GitHubProfileCard username="alatiera" />
-
 </div>
 
 ---
@@ -698,5 +678,5 @@ Thank you to our continuing contributors!
 
 ---
 
-*Generated on 2026-01-27*  
+*Generated on 2026-01-28*  
 [View Project Board](https://todo.projectbluefin.io) | [Report an Issue](https://github.com/projectbluefin/common/issues/new)

scripts/lib/markdown-generator.mjs

@@ -732,27 +732,34 @@ function generateContributorsSection(contributors, newContributors) {
     section += `<div style={{ display: 'grid', gridTemplateColumns: 'repeat(2, 1fr)', gap: '1.5rem', marginBottom: '2rem' }}>\n\n`;
 
     const newContributorCards = newContributors
-      .map(
-        (username) =>
-          `<GitHubProfileCard username="${username}" highlight={true} />`,
-      )
+      .map((username) => {
+        return `<GitHubProfileCard username="${username}" highlight={true} />`;
+      })
       .join("\n\n");
 
     section += newContributorCards;
     section += `\n\n</div>\n\n`;
   }
 
-  // Section 2: All Contributors (without highlight)
-  section += `## Contributors\n\n`;
-  section += `Thank you to our continuing contributors!\n\n`;
-  section += `<div style={{ display: 'grid', gridTemplateColumns: 'repeat(2, 1fr)', gap: '1.5rem', marginBottom: '2rem' }}>\n\n`;
+  // Section 2: Continuing Contributors (excluding new contributors to avoid duplicates)
+  const continuingContributors = contributors.filter(
+    (username) => !newContributors.includes(username),
+  );
 
-  const allContributorCards = contributors
-    .map((username) => `<GitHubProfileCard username="${username}" />`)
-    .join("\n\n");
+  if (continuingContributors.length > 0) {
+    section += `## Contributors\n\n`;
+    section += `Thank you to our continuing contributors!\n\n`;
+    section += `<div style={{ display: 'grid', gridTemplateColumns: 'repeat(2, 1fr)', gap: '1.5rem', marginBottom: '2rem' }}>\n\n`;
 
-  section += allContributorCards;
-  section += `\n\n</div>`;
+    const continuingContributorCards = continuingContributors
+      .map((username) => {
+        return `<GitHubProfileCard username="${username}" />`;
+      })
+      .join("\n\n");
+
+    section += continuingContributorCards;
+    section += `\n\n</div>`;
+  }
 
   return section;
 }

src/components/GitHubProfileCard.tsx

@@ -121,6 +121,7 @@ const fetchGitHubProfile = async (username: string): Promise<GitHubUser> => {
     }
 
     const data = await response.json();
+
     return {
       login: data.login,
       name: data.name,