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

Cargo.toml

@@ -16,7 +16,7 @@ documentation = ""
 path = "lib.rs"
 name = "gitks"
 [dependencies]
-clru = "0.6"
+moka = { version = "0.12", default-features = false, features = ["sync"] }
 serde = { version = "1", features = ["derive"] }
 gix = { version = "0.84", default-features = false, features = ["serde", "blame", "sha256", "sha1", "tracing", "merge", "max-performance-safe", "revision"] }
 gix-archive = { version = "0.33", features = ["sha256","sha1","document-features"] }