Rename Jobs to Tasks, add Project Files section header on project detail

src/pages/team/ProjectDetail.jsx

@@ -345,7 +345,7 @@ export default function ProjectDetail() {
         <div className="card">
           <div className="card-title">Project Summary</div>
           <div className="detail-grid" style={{ marginBottom: 0 }}>
-            <div className="detail-item"><label>Total Jobs</label><p>{tasks.length}</p></div>
+            <div className="detail-item"><label>Total Tasks</label><p>{tasks.length}</p></div>
             <div className="detail-item"><label>Completed</label><p>{tasks.filter(t => t.status === 'client_approved').length}</p></div>
             <div className="detail-item"><label>In Progress</label><p>{tasks.filter(t => t.status === 'in_progress').length}</p></div>
             <div className="detail-item"><label>Awaiting Review</label><p>{tasks.filter(t => t.status === 'client_review').length}</p></div>
@@ -353,9 +353,10 @@ export default function ProjectDetail() {
         </div>
       </div>
 
+      <div className="card-title">Project Files</div>
       <div className="card" style={{ marginBottom: 24 }}>
         <div style={{ display: 'flex', alignItems: 'center', justifyContent: 'space-between', marginBottom: 14 }}>
-          <div className="card-title" style={{ margin: 0 }}>Project Files</div>
+          <div />
           {!isExternal && (
             <>
               <button
@@ -400,7 +401,7 @@ export default function ProjectDetail() {
         )}
       </div>
 
-      <div className="card-title">Jobs</div>
+      <div className="card-title">Tasks</div>
       {tasks.length === 0 ? (
         <div className="empty-state">
           <div className="empty-state-icon">📋</div>