Migrate user/profile URLs to /u/[handle] and remove legacy scripts

All user and post profile URLs have been updated from /[handle] to /u/[handle] for consistency. Added a redirect page for /posts/[id] to the canonical /u/[handle]/posts/[id] route. Deprecated and removed legacy scripts and documentation related to chat and federation endpoints. Push-based federation endpoints are now disabled in favor of real-time pull-based federation.

src/components/PostCard.tsx

@@ -248,7 +248,7 @@ export function PostCard({ post, onLike, onRepost, onComment, onDelete, onHide,
         }
     };
 
-    const postUrl = `/${post.author.handle}/posts/${post.id}`;
+    const postUrl = `/u/${post.author.handle}/posts/${post.id}`;
 
     // Get the full handle for profile links (includes domain for remote users)
     const getProfileHandle = () => {
@@ -384,7 +384,7 @@ export function PostCard({ post, onLike, onRepost, onComment, onDelete, onHide,
         return (
             <article className="post thread-parent">
                 <div className="post-header">
-                    <Link href={`/${profileHandle}`} className="avatar-link" onClick={(e) => e.stopPropagation()}>
+                    <Link href={`/u/${profileHandle}`} className="avatar-link" onClick={(e) => e.stopPropagation()}>
                         <div className="avatar">
                             {post.author.avatarUrl ? (
                                 <img src={post.author.avatarUrl} alt={post.author.displayName || ''} />
@@ -394,7 +394,7 @@ export function PostCard({ post, onLike, onRepost, onComment, onDelete, onHide,
                         </div>
                     </Link>
                     <div className="post-author">
-                        <Link href={`/${profileHandle}`} className="post-handle" onClick={(e) => e.stopPropagation()}>
+                        <Link href={`/u/${profileHandle}`} className="post-handle" onClick={(e) => e.stopPropagation()}>
                             {post.author.displayName || post.author.handle}
                         </Link>
                         <span className="post-time">{formatFullHandle(post.author.handle, post.nodeDomain)}</span>
@@ -427,7 +427,7 @@ export function PostCard({ post, onLike, onRepost, onComment, onDelete, onHide,
                 {!isDetail && <Link href={postUrl} className="post-link-overlay" aria-label="View post" />}
 
                 <div className="post-header">
-                    <Link href={`/${profileHandle}`} className="avatar-link" onClick={(e) => e.stopPropagation()}>
+                    <Link href={`/u/${profileHandle}`} className="avatar-link" onClick={(e) => e.stopPropagation()}>
                         <div className="avatar">
                             {post.author.avatarUrl ? (
                                 <img src={post.author.avatarUrl} alt={post.author.displayName} />
@@ -438,7 +438,7 @@ export function PostCard({ post, onLike, onRepost, onComment, onDelete, onHide,
                     </Link>
                     <div className="post-author">
                         <div style={{ display: 'flex', alignItems: 'center', gap: '6px' }}>
-                            <Link href={`/${profileHandle}`} className="post-handle" onClick={(e) => e.stopPropagation()}>
+                            <Link href={`/u/${profileHandle}`} className="post-handle" onClick={(e) => e.stopPropagation()}>
                                 {post.author.displayName || post.author.handle}
                             </Link>
                             {(post.bot || post.author.isBot) && (
@@ -585,7 +585,7 @@ export function PostCard({ post, onLike, onRepost, onComment, onDelete, onHide,
 
                 {effectiveReplyTo && !showThread && (
                     <div className="post-reply-to">
-                        Replying to <Link href={`/${effectiveReplyTo.author.handle}`} onClick={(e) => e.stopPropagation()}>{formatFullHandle(effectiveReplyTo.author.handle)}</Link>
+                        Replying to <Link href={`/u/${effectiveReplyTo.author.handle}`} onClick={(e) => e.stopPropagation()}>{formatFullHandle(effectiveReplyTo.author.handle)}</Link>
                     </div>
                 )}
 

src/components/RightSidebar.tsx

@@ -147,7 +147,7 @@ export function RightSidebar() {
                             {nodeInfo.admins.map((admin) => (
                                 <Link
                                     key={admin.handle}
-                                    href={`/${admin.handle}`}
+                                    href={`/u/${admin.handle}`}
                                     style={{ display: 'flex', alignItems: 'center', gap: '10px', textDecoration: 'none', color: 'inherit' }}
                                 >
                                     <img

src/components/Sidebar.tsx

@@ -144,7 +144,7 @@ export function Sidebar() {
                     </Link>
                 )}
                 {user ? (
-                    <Link href={`/${user.handle}`} className={`nav-item ${pathname === '/' + user.handle ? 'active' : ''}`}>
+                    <Link href={`/u/${user.handle}`} className={`nav-item ${pathname === '/u/' + user.handle ? 'active' : ''}`}>
                         <UserIcon />
                         <span>Profile</span>
                     </Link>