refactor: apply clippy auto-fixes (162 warnings resolved)

- Fix needless borrows and references
- Collapse nested if statements
- Replace manual strip_prefix with str::strip_prefix()
- Remove redundant closures in map/unwrap_or_else
- Use Iterator::next_back() instead of rev().next()
- Simplify map_or patterns
- Use std::io::Error::other() instead of new(ErrorKind::Other, ..)
- Use div_ceil() instead of manual ceiling division
- Consolidate format! string arguments
- Various other idiomatic Rust improvements

39 files changed, 220 insertions(+), 320 deletions(-)

src/infrastructure/services/path_service.rs

@@ -65,7 +65,7 @@ impl PathService {
     
     /// Checks if a path is at the root
     pub fn is_in_root(&self, path: &StoragePath) -> bool {
-        path.parent().map_or(true, |p| p.is_empty())
+        path.parent().is_none_or(|p| p.is_empty())
     }
     
     /// Gets the root path used by this service