chore: remove dead UI helpers and orphan toolbar stubs

Each item below was gated by #[allow(dead_code)] and has zero callers
across src/ — none of them are part of any public API consumed by
external crates (this is a binary, not a library):

* modules/insert/underlay_frames.rs + edit_aliases.rs — toolbar stubs
  whose `tool()` registrars were never wired into the ribbon; the
  parent mod.rs inlines its own include_bytes! for the SVGs, so the
  files were orphan dead weight.
* ui/snap_popup.rs:snap_marker_color — never called.
* ui/ribbon/mod.rs:last_dropdown_cmd — never called.
* ui/scale_popup.rs:anno_scale_for_label — never called.
* ui/layers.rs:color_name_to_aci — inverse of aci_color_display
  with zero call sites.
* linetypes.rs:name_list — never called.
* scene/pipeline/wire_gpu.rs:new_ghost — never called.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

src/linetypes.rs

@@ -103,19 +103,6 @@ pub fn populate_document(doc: &mut CadDocument) {
     }
 }
 
-/// Names of all linetypes that will be in the document after [`populate_document`].
-#[allow(dead_code)]
-pub fn name_list() -> Vec<String> {
-    let mut names = vec![
-        "ByLayer".to_string(),
-        "ByBlock".to_string(),
-        "Continuous".to_string(),
-    ];
-    for lt in parse(LIN_SOURCE) {
-        names.push(lt.name);
-    }
-    names
-}
 
 // ── Parser ────────────────────────────────────────────────────────────────
 

src/modules/insert/mod.rs

@@ -16,7 +16,6 @@ mod open_obj;
 mod pc_attach;
 mod snap_underlays;
 pub(crate) mod solid3d_cmds;
-mod underlay_frames;
 mod underlay_layers;
 pub(crate) mod wblock;
 mod xadjust;

src/modules/insert/underlay_frames.rs

@@ -1,13 +0,0 @@
-use crate::modules::{IconKind, ModuleEvent, ToolDef};
-#[allow(dead_code)]
-pub const ICON: IconKind =
-    IconKind::Svg(include_bytes!("../../../assets/icons/underlay_frames.svg"));
-#[allow(dead_code)]
-pub fn tool() -> ToolDef {
-    ToolDef {
-        id: "FRAMES",
-        label: "Frames",
-        icon: ICON,
-        event: ModuleEvent::Command("FRAMES".to_string()),
-    }
-}

src/modules/manage/edit_aliases.rs

@@ -1,12 +0,0 @@
-use crate::modules::{IconKind, ModuleEvent, ToolDef};
-#[allow(dead_code)]
-pub const ICON: IconKind = IconKind::Svg(include_bytes!("../../../assets/icons/edit_aliases.svg"));
-#[allow(dead_code)]
-pub fn tool() -> ToolDef {
-    ToolDef {
-        id: "ALIASEDIT",
-        label: "Edit Aliases",
-        icon: ICON,
-        event: ModuleEvent::Command("ALIASEDIT".to_string()),
-    }
-}

src/modules/manage/mod.rs

@@ -3,7 +3,6 @@
 mod audit;
 mod cui_export;
 mod cui_import;
-mod edit_aliases;
 mod find_nonpurgeable;
 mod options;
 mod overkill;

src/scene/pipeline/wire_gpu.rs

@@ -123,13 +123,6 @@ impl WireGpu {
         g
     }
 
-    /// Creates a ghost copy with `alpha` applied on top of the wire's own alpha.
-    #[allow(dead_code)]
-    pub fn new_ghost(device: &wgpu::Device, wire: &WireModel, alpha: f32) -> Self {
-        let [r, g, b, a] = wire.color;
-        Self::build(device, wire, [r, g, b, a * alpha])
-    }
-
     /// Merge multiple WireModels into GPU buffers chunked to fit the 256 MB GPU limit.
     /// Each wire keeps its own color and pattern — they're stored per-vertex.
     /// Returns an empty Vec if the combined vertex list is empty.

src/ui/layers.rs

@@ -838,22 +838,6 @@ fn color_label_aci(i: u8) -> &'static str {
     }
 }
 
-#[allow(dead_code)]
-fn color_name_to_aci(name: &str) -> u8 {
-    match name {
-        "red" => 1,
-        "yellow" => 2,
-        "green" => 3,
-        "cyan" => 4,
-        "blue" => 5,
-        "magenta" => 6,
-        "white" => 7,
-        "dark gray" => 8,
-        "gray" => 9,
-        _ => 7,
-    }
-}
-
 pub fn iced_color_from_acad(c: &AcadColor) -> Color {
     match c {
         AcadColor::Index(i) => {

src/ui/ribbon/mod.rs

@@ -180,15 +180,6 @@ impl Ribbon {
         self.open_dropdown = None;
     }
 
-    #[allow(dead_code)]
-    pub fn last_dropdown_cmd(
-        &self,
-        dropdown_id: &'static str,
-        default: &'static str,
-    ) -> &'static str {
-        self.last_cmd.get(dropdown_id).copied().unwrap_or(default)
-    }
-
     // ── View ──────────────────────────────────────────────────────────────
 
     pub fn view(

src/ui/scale_popup.rs

@@ -23,15 +23,6 @@ const COMMON_SCALES: &[(&str, f32, f64)] = &[
     ("10:1", 0.1, 10.00),
 ];
 
-#[allow(dead_code)]
-pub fn anno_scale_for_label(label: &str) -> f32 {
-    COMMON_SCALES
-        .iter()
-        .find(|&&(l, _, _)| l == label)
-        .map(|&(_, a, _)| a)
-        .unwrap_or(1.0)
-}
-
 /// Full-screen overlay: transparent click-catcher + scale list panel pinned bottom-right.
 ///
 /// - `is_model`: true = model space (dispatches SetAnnotationScale), false = paper space (SetViewportScale).

src/ui/snap_popup.rs

@@ -233,27 +233,3 @@ const LABEL_OFF: Color = Color {
     a: 1.0,
 };
 
-/// The `Point` parameter is unused today; kept for future tooltip positioning.
-#[allow(dead_code)]
-pub fn snap_marker_color(snap_type: SnapType) -> Color {
-    match snap_type {
-        SnapType::Endpoint | SnapType::Midpoint => Color {
-            r: 1.0,
-            g: 0.9,
-            b: 0.1,
-            a: 1.0,
-        },
-        SnapType::Grid => Color {
-            r: 0.4,
-            g: 0.9,
-            b: 0.4,
-            a: 1.0,
-        },
-        _ => Color {
-            r: 1.0,
-            g: 0.9,
-            b: 0.1,
-            a: 1.0,
-        },
-    }
-}