Center all resume section headers

Add text-align: center to h1, h2, and h3 within #locked-resume.
Tag the section with data-contribution-id for hover attribution.

Co-authored-by: parse-nip <parse-nip@users.noreply.github.com>

Author: cursoragent

src/app/globals.css

@@ -972,6 +972,7 @@
   #locked-resume h3 {
     font: inherit;
     font-weight: bold;
+    text-align: center;
   }
 
   #locked-resume h1 {

src/components/locked/LockedResume.tsx

@@ -9,7 +9,12 @@ export function LockedResume() {
   const data = getExperience();
 
   return (
-    <section id="locked-resume" data-facts="true" aria-label="Portfolio facts">
+    <section
+      id="locked-resume"
+      data-facts="true"
+      data-contribution-id="centered-resume-headers"
+      aria-label="Portfolio facts"
+    >
       <article className="locked-resume">
           <header className="locked-resume-header">
             <h1 data-fact-id="profile-name">{data.profile.name}</h1>