feat: add sheet management system for vaults

- Add Sheet struct with holder, inputs, and mapping functionality
- Implement SheetData with serialization support
- Add sheets.rs with vault sheet management methods:
  - Load all sheets in vault
  - Search for sheet names
  - Read individual sheets
  - Create new sheets with validation
  - Delete sheets (both permanently and safely to trash)
  - Restore sheets from trash
- Update data module to include sheet submodule
- Minor fixes and improvements to related modules

1 files changed, 4 insertions, 1 deletions

diff --git a/crates/vcs/src/data/user/accounts.rs b/crates/vcs/src/data/user/accounts.rs
index 83ebda9..d77bc02 100644
--- a/crates/vcs/src/data/user/accounts.rs
+++ b/crates/vcs/src/data/user/accounts.rs
@@ -8,7 +8,10 @@ use cfg_file::config::ConfigFile;
 
 use crate::{
     constants::{USER_FILE_ACCOUNTS, USER_FILE_KEY, USER_FILE_MEMBER},
-    data::{member::Member, user::UserDirectory, vault::MemberId},
+    data::{
+        member::{Member, MemberId},
+        user::UserDirectory,
+    },
 };
 
 const SELF_ID: &str = "{self_id}";