Restrict clickable area to user profile section only

- Remove InkWell wrapper from entire card
- Add separate InkWell for PostHeader area only
- Add separate InkWell for PostBody and PostMedia areas
- Only user name/avatar area navigates to profile
- Post content areas navigate to post detail (onTap)
- PostMenu remains separate and unaffected
- Add AppRoutes import for profile navigation
- Maintain proper visual feedback with borderRadius

sojorn_app/lib/widgets/sojorn_post_card.dart

@@ -7,6 +7,7 @@ import 'post/post_header.dart';
 import 'post/post_media.dart';
 import 'post/post_menu.dart';
 import 'post/post_view_mode.dart';
+import '../routes/app_routes.dart';
 
 /// Unified Post Card - Single Source of Truth for post display.
 ///
@@ -75,10 +76,6 @@ class sojornPostCard extends StatelessWidget {
   Widget build(BuildContext context) {
     return Material(
       color: Colors.transparent,
-      child: InkWell(
-        onTap: onTap,
-        splashColor: AppTheme.queenPink.withOpacity(0.3),
-        highlightColor: Colors.transparent,
       child: Container(
         margin: const EdgeInsets.only(bottom: 16), // Add spacing between cards
         padding: _padding,
@@ -101,17 +98,32 @@ class sojornPostCard extends StatelessWidget {
           crossAxisAlignment: CrossAxisAlignment.start,
           children: [
             const SizedBox(height: 4),
-              // Header row with menu
+            // Header row with menu - only header is clickable for profile
             Row(
               crossAxisAlignment: CrossAxisAlignment.start,
               children: [
                 Expanded(
+                  child: InkWell(
+                    onTap: () {
+                      final handle = post.author?.handle ?? 'unknown';
+                      if (handle != 'unknown' && handle.trim().isNotEmpty) {
+                        AppRoutes.navigateToProfile(context, handle);
+                      }
+                    },
+                    borderRadius: BorderRadius.circular(AppTheme.radiusMd),
+                    child: Padding(
+                      padding: const EdgeInsets.symmetric(
+                        horizontal: 4,
+                        vertical: 4,
+                      ),
                       child: PostHeader(
                         post: post,
                         avatarSize: _avatarSize,
                         mode: mode,
                       ),
                     ),
+                  ),
+                ),
                 PostMenu(
                   post: post,
                   onPostDeleted: onPostChanged,
@@ -120,21 +132,29 @@ class sojornPostCard extends StatelessWidget {
             ),
             const SizedBox(height: 16),
 
-              // Body text
-              PostBody(
+            // Body text - clickable for post detail
+            InkWell(
+              onTap: onTap,
+              borderRadius: BorderRadius.circular(AppTheme.radiusMd),
+              child: PostBody(
                 text: post.body,
                 bodyFormat: post.bodyFormat,
                 backgroundId: post.backgroundId,
                 mode: mode,
               ),
+            ),
 
-              // Media (if available)
+            // Media (if available) - clickable for post detail
             if (post.imageUrl != null && post.imageUrl!.isNotEmpty) ...[
               const SizedBox(height: 16),
-                PostMedia(
+              InkWell(
+                onTap: onTap,
+                borderRadius: BorderRadius.circular(AppTheme.radiusMd),
+                child: PostMedia(
                   post: post,
                   mode: mode,
                 ),
+              ),
             ],
 
             const SizedBox(height: 20),
@@ -148,7 +168,6 @@ class sojornPostCard extends StatelessWidget {
           ],
         ),
       ),
-      ),
     );
   }
 }