feat(alias): centralize command aliases in user-editable ocad.pgp (#286/#288)

Command aliases (L→LINE, CC→COPYCLIP) were scattered across dispatch match
arms and CommandRegistration name arrays. Move them all into a single
user-editable file:

- assets/ocad.pgp: shipped default alias table (ALIAS,*COMMAND format),
  embedded and copied to config/ocad.pgp on first launch; only that user
  copy is read after. AA→AREA default closes #286.
- resolve_alias() rewrites the leading command token at the top of
  dispatch_command_inner, so aliases resolve for every path (families,
  plugins, Repeat menu). Args after the first space are untouched.
- Autocomplete hides alias keys and, when the whole input is an alias,
  surfaces its target command as the top (highlighted) suggestion so the
  highlight matches what Enter runs (AA→AREA, L→LINE).
- ALIASEDIT opens a new editor modal (add/edit/delete rows) with an Apply
  button; Apply persists to ocad.pgp, closing discards unapplied edits.
- Strip alias tokens from all 8 dispatch match-arm files and 71 module
  CommandRegistration arrays, keeping canonical/synonym/distinct-command
  names. ocad.pgp is now the sole source: deleting or remapping an alias
  there takes effect. CUI stays on the keyboard-shortcut panel.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

src/app/commands/view.rs

@@ -208,10 +208,15 @@ impl OpenCADStudio {
                 self.command_line.push_info("Opening release notes...");
             }
 
-            // ── CUI / ALIASEDIT — customization entry points ───────────────
-            // Command-alias and key-binding editing lives in the keyboard
-            // shortcuts panel, so route the customization verbs there.
-            "CUI" | "ALIASEDIT" => {
+            // ── ALIASEDIT — command-alias editor ───────────────────────────
+            // Opens the command-alias table editor (ocad.pgp). Keyboard
+            // key-bindings are edited separately via CUI (below).
+            "ALIASEDIT" => {
+                return Some(Task::done(Message::AliasEditorOpen));
+            }
+
+            // ── CUI — keyboard shortcut / key-binding editor ───────────────
+            "CUI" => {
                 return Some(Task::done(Message::ShortcutsPanelOpen));
             }
 
@@ -380,7 +385,7 @@ impl OpenCADStudio {
             }
 
             // ── Layout / viewport ──────────────────────────────────────────
-            "MVIEW" | "MV" => {
+            "MVIEW" => {
                 if self.tabs[i].scene.current_layout == "Model" {
                     self.command_line
                         .push_error("MVIEW: switch to a paper space layout first.");
@@ -393,7 +398,7 @@ impl OpenCADStudio {
             }
 
             // ── MSPACE / PSPACE ───────────────────────────────────────────
-            "MS" | "MSPACE" => {
+            "MSPACE" => {
                 return Some(Task::done(Message::MspaceCommand));
             }
             "PSPACE" => {
@@ -970,7 +975,7 @@ impl OpenCADStudio {
             }
 
             // HIDE — hidden-line view of the active viewport.
-            "HIDE" | "HI" => {
+            "HIDE" => {
                 return Some(Task::done(Message::SetRenderMode(
                     acadrust::entities::ViewportRenderMode::HiddenLine,
                 )));