feat(fileDto, folderDto): add is_favorite + is_shared

- provide is_shared and is_favorite information in DTO, information propagated as badge/buttons per items
      regarding performances I try to be minimalis on SQL to prevent any perf regression

    - remove old set of sharedids and favoriteids (was not functionnal anymore)
    - fix date picker (no past selection) in grant
    - fix contextmenu close on /files section

src/interfaces/nextcloud/report_handler.rs

@@ -450,6 +450,10 @@ fn file_dto_from_search(fr: &crate::application::dtos::search_dto::SearchFileRes
         // §14 provenance not selected by the search result DTO.
         created_by: None,
         updated_by: None,
+        // NextCloud search doesn't render the SPA badges; safe
+        // defaults, dropped by the WebDAV/NC XML property serializer.
+        is_favorite: false,
+        is_shared: false,
     }
 }
 
@@ -483,6 +487,10 @@ fn folder_dto_from_search(
         // §14 provenance not selected by search results.
         created_by: None,
         updated_by: None,
+        // See file_dto_from_search: NC/DAV property serializer drops
+        // these; safe default.
+        is_favorite: false,
+        is_shared: false,
     }
 }
 

src/interfaces/nextcloud/webdav_handler.rs

@@ -2122,6 +2122,10 @@ mod tests {
             // §14 provenance not relevant to path-mapper tests.
             created_by: None,
             updated_by: None,
+            // Caller state flags not read by the WebDAV path mapper;
+            // Nextcloud DAV surfaces don't render the SPA badges.
+            is_favorite: false,
+            is_shared: false,
         }
     }