feat(fuse,core,gui,cli): one-request move+rename drain, show who shared an item

- A queued rename that also changes folder now lands as one `move-multiple`
  request carrying the target name instead of rename-then-move, so there is
  no half-applied state and no second call for stale name requirements to
  hit (B46 follow-up). A destination name collision moves under a conflict
  name in one step; same-folder renames still use the rename endpoint.
- Shared with me shows the inviter and invite date (GUI subtitle, `pdfs
  shared-with-me`), with a warning when the invitation signature does not
  verify against the claimed inviter's keys. `DirEntry` gains `shared_by`,
  `shared_at` and `shared_by_unverified`, all serde-defaulted.
- Bump `proton-sdk` / `proton-drive-rs` to 0.6.3 (anonymous-node moves,
  `TrashTime` trashed detection).

crates/pdfs-core/src/db/tests.rs

@@ -3201,6 +3201,8 @@ fn test_db_has_children_and_trashed_filtering() {
         photo: None,
         album: None,
         verification: Default::default(),
+        direct_role: None,
+        share_id: None,
     };
     db.upsert_node(&parent_node).unwrap();
 
@@ -3227,6 +3229,8 @@ fn test_db_has_children_and_trashed_filtering() {
         photo: None,
         album: None,
         verification: Default::default(),
+        direct_role: None,
+        share_id: None,
     };
     db.upsert_node(&child_node).unwrap();