feat(tcp_connection): add MessagePack serialization support

- Add rmp-serde dependency for MessagePack serialization
- Implement write_msgpack and read_msgpack methods for basic MessagePack support
- Add write_large_msgpack and read_large_msgpack methods for chunked transmission
- Add error conversions for rmp-serde errors
- Add comprehensive tests for MessagePack functionality
- Fix code formatting and improve readability
- Make stream field pub(crate) for better access control

All tests pass successfully, ensuring backward compatibility.

2 files changed, 23 insertions, 4 deletions

diff --git a/crates/vcs/src/data/sheet.rs b/crates/vcs/src/data/sheet.rs
index a6765c0..95599ff 100644
--- a/crates/vcs/src/data/sheet.rs
+++ b/crates/vcs/src/data/sheet.rs
@@ -71,6 +71,15 @@ impl<'a> Sheet<'a> {
         &self.data.inputs
     }
 
+    /// Get the names of the inputs of this sheet
+    pub fn input_names(&self) -> Vec<String> {
+        self.data
+            .inputs
+            .iter()
+            .map(|input| input.name.clone())
+            .collect()
+    }
+
     /// Get the mapping of this sheet
     pub fn mapping(&self) -> &HashMap<SheetPathBuf, VirtualFileId> {
         &self.data.mapping
diff --git a/crates/vcs/src/data/vault/sheets.rs b/crates/vcs/src/data/vault/sheets.rs
index 082c076..0bba4f5 100644
--- a/crates/vcs/src/data/vault/sheets.rs
+++ b/crates/vcs/src/data/vault/sheets.rs
@@ -154,6 +154,9 @@ impl Vault {
     /// and will not be used in the future.
     ///
     /// For a safer deletion method, consider using `delete_sheet_safety`.
+    ///
+    /// Note: This function is intended for server-side use only and should not be
+    /// arbitrarily called by other members to prevent unauthorized data deletion.
     pub async fn delete_sheet(&self, sheet_name: &SheetName) -> Result<(), std::io::Error> {
         let sheet_name = snake_case!(sheet_name.clone());
 
@@ -174,11 +177,18 @@ impl Vault {
 
     /// Safely delete the sheet
     ///
-    /// The sheet will be moved to the trash directory, ensuring it does not appear in the results of `sheets` and `sheet_names` methods.
-    /// However, if the sheet's holder attempts to access the sheet through the `sheet` method, the system will automatically restore it from the trash directory.
-    /// This means: the sheet will only permanently remain in the trash directory, waiting for manual cleanup by an administrator, when it is truly no longer in use.
+    /// The sheet will be moved to the trash directory, ensuring it does not appear in the
+    /// results of `sheets` and `sheet_names` methods.
+    /// However, if the sheet's holder attempts to access the sheet through the `sheet` method,
+    /// the system will automatically restore it from the trash directory.
+    /// This means: the sheet will only permanently remain in the trash directory,
+    /// waiting for manual cleanup by an administrator, when it is truly no longer in use.
+    ///
+    /// This is a safer deletion method because it provides the possibility of recovery,
+    /// avoiding irreversible data loss caused by accidental deletion.
     ///
-    /// This is a safer deletion method because it provides the possibility of recovery, avoiding irreversible data loss caused by accidental deletion.
+    /// Note: This function is intended for server-side use only and should not be
+    /// arbitrarily called by other members to prevent unauthorized data deletion.
     pub async fn delete_sheet_safely(&self, sheet_name: &SheetName) -> Result<(), std::io::Error> {
         let sheet_name = snake_case!(sheet_name.clone());