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

tree/list_tree.rs

@@ -4,7 +4,6 @@ use crate::bare::GitBare;
 use crate::error::{GitError, GitResult};
 use crate::paginate;
 use crate::pb::{ListTreeRequest, ListTreeResponse, TreeEntry, object_selector, tree_entry};
-use crate::tree;
 
 impl GitBare {
     pub fn list_tree(&self, request: ListTreeRequest) -> GitResult<ListTreeResponse> {
@@ -41,23 +40,23 @@ impl GitBare {
             };
             let kind = entry.kind();
             let hex = entry.id().to_string();
-            let entry_path = path.clone();
             entries.push(TreeEntry {
                 name,
-                path: entry_path.clone(),
+                path,
                 oid: Some(self.oid_to_pb(hex)),
                 r#type: entry_type(kind) as i32,
                 mode: u32::from_str_radix(&format!("{:o}", entry.mode()), 8).unwrap_or(0),
                 size: entry_size(&repo, entry.id().to_string().as_str()).unwrap_or(0),
                 is_lfs: false,
-                recent_commit: tree::recent_commit(self, &revision, &entry_path),
+                recent_commit: None, // populated on demand, not per-entry subprocess
             });
 
             if request.recursive && matches!(kind, EntryKind::Tree) {
+                let child_path = entries.last().unwrap().path.clone();
                 let child = self.list_tree(ListTreeRequest {
                     repository: request.repository.clone(),
                     revision: request.revision.clone(),
-                    path,
+                    path: child_path,
                     recursive: true,
                     pagination: None,
                 })?;