refactor(server): replace custom remote clients with macro-based implementation

- Replaced manual remote client functions with remote_client! macro for archive, blame, branch, commit, and diff services
- Simplified remote client creation logic using declarative macro approach
- Maintained same functionality while reducing code duplication across services

security(bare): enhance path traversal protection with comprehensive validation

- Added early relative_path validation to prevent path traversal attacks
- Implemented unified path validation to avoid TOCTOU race conditions
- Enhanced canonicalization checks for both existing and non-existent paths
- Added detailed logging for path traversal detection attempts

feat(cache): migrate from CLruCache to Moka with TTL and invalidation support

- Replaced clru dependency with moka for improved caching capabilities
- Added 300-second time-to-live for cache entries
- Implemented repository-specific cache invalidation mechanism
- Enhanced cache operations with thread-safe async support

refactor(commit): improve security validation for commit operations

- Added ref name validation to prevent command injection in cherry_pick_commit
- Implemented revision validation for commit selectors
- Added comprehensive input validation for create_commit parameters
- Enhanced file path validation to prevent traversal

merge/check_merge.rs

@@ -1,19 +1,12 @@
 use crate::bare::GitBare;
 use crate::error::GitResult;
 use crate::pb::{CheckMergeRequest, MergeResult, merge_result};
+use crate::resolve_revision;
 
 impl GitBare {
     pub fn check_merge(&self, request: CheckMergeRequest) -> GitResult<MergeResult> {
-        let target = match request.target.and_then(|s| s.selector) {
-            Some(crate::pb::object_selector::Selector::Oid(oid)) => oid.hex,
-            Some(crate::pb::object_selector::Selector::Revision(name)) => name.revision,
-            None => "HEAD".into(),
-        };
-        let source = match request.source.and_then(|s| s.selector) {
-            Some(crate::pb::object_selector::Selector::Oid(oid)) => oid.hex,
-            Some(crate::pb::object_selector::Selector::Revision(name)) => name.revision,
-            None => "HEAD".into(),
-        };
+        let target = resolve_revision!(request.target);
+        let source = resolve_revision!(request.source);
 
         let repo = self.gix_repo()?;
         let target_id = repo.rev_parse_single(target.as_str())?;