Fix all clippy warnings across workspace

collapsible_if, let-chains, derivable_impls, clone_on_copy, useless_vec, approx_constant, io_other_error, single_match, collapsible_match, unnecessary_map_or, manual_is_multiple_of, result_large_err, too_many_arguments, upper_case_acronyms

Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-openagent)

Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>

crates/xserial-gui/src/panels/plot_view.rs

@@ -9,6 +9,7 @@ pub enum PlotDisplayMode {
     Detached,
 }
 
+#[derive(Default)]
 pub struct PlotViewState {
     pub lock_x: bool,
     pub lock_y: bool,
@@ -18,19 +19,6 @@ pub struct PlotViewState {
     pub detached: bool,
 }
 
-impl Default for PlotViewState {
-    fn default() -> Self {
-        Self {
-            lock_x: false,
-            lock_y: false,
-            box_zoom: false,
-            follow_latest: false,
-            last_bounds: None,
-            detached: false,
-        }
-    }
-}
-
 pub struct PlotRenderOutput {
     pub stats: PlotRenderStats,
     pub toggle_detached: bool,