feat(server): add tracing spans and caching to archive and blame services

- Add tracing spans with repo labels for archive and blame operations
- Implement caching for archive list entries when using OID selectors
- Implement caching for blame operations when using OID selectors
- Add detailed

commit/create_commit.rs

@@ -9,6 +9,13 @@ use crate::pb::{
 impl GitBare {
     pub fn create_commit(&self, request: CreateCommitRequest) -> GitResult<CreateCommitResponse> {
         let repo = self.gix_repo()?;
+        let branch = request.branch.clone();
+        tracing::debug!(
+            repo = %self.bare_dir.display(),
+            branch = %branch,
+            actions = request.actions.len(),
+            "creating commit"
+        );
         let start_rev = match request.start_revision.clone().and_then(|s| s.selector) {
             Some(object_selector::Selector::Oid(oid)) => oid.hex,
             Some(object_selector::Selector::Revision(name)) => name.revision,