fix(lib): use symlink-safe realpath comparison for workspace cwd matching in find_workspace_uuid

.agents/skills/lib.sh

@@ -1229,7 +1229,8 @@ def emit(u):
 # Fetch all sessions matching this workspace
 sessions = []
 for s in d.get('herdr_sessions', []):
-    if isinstance(s, dict) and (s.get('pane') or {}).get('cwd') == ws:
+    s_cwd = (s.get('pane') or {}).get('cwd', '') if isinstance(s, dict) else ''
+    if s_cwd and (s_cwd == ws or os.path.realpath(s_cwd) == os.path.realpath(ws)):
         sessions.append(s)
 
 if target: