Prioritize /opt/pangolin as default directory across backup, inspection, and remote testing

backend/remote.py

@@ -134,13 +134,21 @@ async def test_vps_connection(settings: Optional[Dict[str, Any]] = None) -> Dict
     docker_version = stdout_docker.strip() if docker_installed else "Not detected"
 
     # 3. Check Pangolin Directory
-    pangolin_dir = settings.get("vps_pangolin_dir", "/opt/pangolin")
-    chk_dir_cmd = f'[ -d "{pangolin_dir}" ] && echo "DIR_EXISTS" || echo "DIR_MISSING"'
+    pangolin_dir = settings.get("vps_pangolin_dir", "/opt/pangolin").strip() or "/opt/pangolin"
+    chk_dir_cmd = f"""
+eval P_DIR="{pangolin_dir}"
+P_DIR="${{P_DIR/#~/$HOME}}"
+[ -d "$P_DIR" ] && echo "DIR_EXISTS" || echo "DIR_MISSING"
+"""
     _, stdout_dir, _ = await run_remote_quick(chk_dir_cmd, settings)
     pangolin_dir_found = "DIR_EXISTS" in stdout_dir
 
     # 4. Check SQLite database status in Pangolin directory
-    chk_db_cmd = f'find "{pangolin_dir}" -name "*.db" -o -name "*.sqlite" 2>/dev/null'
+    chk_db_cmd = f"""
+eval P_DIR="{pangolin_dir}"
+P_DIR="${{P_DIR/#~/$HOME}}"
+find "$P_DIR" -name "*.db" -o -name "*.sqlite" 2>/dev/null
+"""
     _, stdout_db, _ = await run_remote_quick(chk_db_cmd, settings)
     dbs_found = [p.strip() for p in stdout_db.strip().split("\n") if p.strip()]