feat(commandline): autocomplete suggestions + inventory-based registry

Type-as-you-go suggestion popup above the input that filters known
command names by substring (so `LEADER` surfaces both LEADER and
MLEADER). Up / Down navigates the list, Enter dispatches the
highlighted entry, clicking a row dispatches directly. Esc on a
non-empty input clears the buffer instead of escalating to
command-cancel.

The name corpus comes from `inventory::submit!` blocks placed next
to each `CadCommand` impl rather than a hand-maintained static list.
Adding a new interactive command means dropping one `inventory::submit!`
line in its own module file — the autocomplete picks it up at the
next compile. 98 submissions seeded across 60 module files;
`command::all_registered_command_names()` flattens them at runtime.

One-shot dispatch arms in `app/commands.rs` (NEW, OPEN, SAVE, UNDO,
…) don't have a `CadCommand` impl and are therefore absent from
autocomplete by design.

Co-Authored-By: Claude Opus 4.7 <[email protected]>

src/modules/annotate/aligned_dim.rs

@@ -149,3 +149,7 @@ fn preview_aligned(p1: Vec3, p2: Vec3, dim_pt: Vec3) -> WireModel {
         fill_tris: vec![],
     }
 }
+
+
+// ── Autocomplete registry ─────────────────────────────────
+inventory::submit!(crate::command::CommandRegistration { names: &["DAL", "DIMALIGNED"] });  // AlignedDimensionCommand

src/modules/annotate/angular_dim.rs

@@ -173,3 +173,7 @@ fn angular_preview(vertex: Vec3, first: Vec3, second: Vec3, arc_pt: Vec3) -> Vec
     }
     points
 }
+
+
+// ── Autocomplete registry ─────────────────────────────────
+inventory::submit!(crate::command::CommandRegistration { names: &["DIMANGULAR"] });  // AngularDimensionCommand

src/modules/annotate/diameter_dim.rs

@@ -112,3 +112,7 @@ fn preview_line(a: Vec3, b: Vec3) -> WireModel {
         fill_tris: vec![],
     }
 }
+
+
+// ── Autocomplete registry ─────────────────────────────────
+inventory::submit!(crate::command::CommandRegistration { names: &["DDI", "DIMDIAMETER"] });  // DiameterDimensionCommand

src/modules/annotate/dim_baseline.rs

@@ -177,3 +177,7 @@ impl CadCommand for DimBaselineCommand {
 fn v3(p: Vec3) -> Vector3 {
     Vector3::new(p.x as f64, p.y as f64, p.z as f64)
 }
+
+
+// ── Autocomplete registry ─────────────────────────────────
+inventory::submit!(crate::command::CommandRegistration { names: &["DBA", "DIMBASELINE"] });  // DimBaselineCommand

src/modules/annotate/dim_continue.rs

@@ -158,3 +158,7 @@ impl CadCommand for DimContinueCommand {
 fn v3(p: Vec3) -> Vector3 {
     Vector3::new(p.x as f64, p.y as f64, p.z as f64)
 }
+
+
+// ── Autocomplete registry ─────────────────────────────────
+inventory::submit!(crate::command::CommandRegistration { names: &["DCO", "DIMCONTINUE"] });  // DimContinueCommand

src/modules/annotate/dimbreak.rs

@@ -97,3 +97,7 @@ impl CadCommand for DimBreakCommand {
         CmdResult::Cancel
     }
 }
+
+
+// ── Autocomplete registry ─────────────────────────────────
+inventory::submit!(crate::command::CommandRegistration { names: &["DBR", "DIMBREAK"] });  // DimBreakCommand

src/modules/annotate/dimedit.rs

@@ -85,3 +85,7 @@ impl CadCommand for DimEditCommand {
         CmdResult::Cancel
     }
 }
+
+
+// ── Autocomplete registry ─────────────────────────────────
+inventory::submit!(crate::command::CommandRegistration { names: &["DED", "DIMEDIT"] });  // DimEditCommand

src/modules/annotate/dimjogline.rs

@@ -108,3 +108,7 @@ impl CadCommand for DimJogLineCommand {
         })
     }
 }
+
+
+// ── Autocomplete registry ─────────────────────────────────
+inventory::submit!(crate::command::CommandRegistration { names: &["DIMJOGLINE", "DJL"] });  // DimJogLineCommand

src/modules/annotate/dimspace.rs

@@ -125,3 +125,7 @@ impl CadCommand for DimSpaceCommand {
         }
     }
 }
+
+
+// ── Autocomplete registry ─────────────────────────────────
+inventory::submit!(crate::command::CommandRegistration { names: &["DIMSPACE", "DSPACE"] });  // DimSpaceCommand

src/modules/annotate/dimtedit.rs

@@ -128,3 +128,7 @@ impl CadCommand for DimTeditCommand {
         }
     }
 }
+
+
+// ── Autocomplete registry ─────────────────────────────────
+inventory::submit!(crate::command::CommandRegistration { names: &["DIMTED", "DIMTEDIT"] });  // DimTeditCommand

src/modules/annotate/leader_cmd.rs

@@ -252,3 +252,7 @@ pub fn arrowhead_wings(tip: Vec3, next: Vec3, size: f32) -> [Vec3; 2] {
         ),
     ]
 }
+
+
+// ── Autocomplete registry ─────────────────────────────────
+inventory::submit!(crate::command::CommandRegistration { names: &["LE", "LEADER"] });  // LeaderCommand

src/modules/annotate/linear_dim.rs

@@ -163,3 +163,7 @@ fn linear_text_pos(first: Vec3, second: Vec3, def: Vec3) -> Vec3 {
     let d2 = second + perp * offset;
     (d1 + d2) * 0.5 + perp * 0.15
 }
+
+
+// ── Autocomplete registry ─────────────────────────────────
+inventory::submit!(crate::command::CommandRegistration { names: &["DIMLINEAR"] });  // LinearDimensionCommand

src/modules/annotate/mleader_cmd.rs

@@ -199,3 +199,7 @@ fn arrowhead_wings(tip: Vec3, next: Vec3, size: f32) -> [Vec3; 2] {
         ),
     ]
 }
+
+
+// ── Autocomplete registry ─────────────────────────────────
+inventory::submit!(crate::command::CommandRegistration { names: &["MLD", "MLEADER"] });  // MLeaderCommand

src/modules/annotate/mleader_edit.rs

@@ -476,3 +476,10 @@ fn preview_wire(pts: &[Vec3]) -> WireModel {
 
 // Silence unused-import warning for MultiLeader and LeaderLine if not used in all paths
 fn _uses_ml_types(_ml: &MultiLeader, _ll: &LeaderLine) {}
+
+
+// ── Autocomplete registry ─────────────────────────────────
+inventory::submit!(crate::command::CommandRegistration { names: &["MLA", "MLEADERADD"] });  // MLeaderAddCommand
+inventory::submit!(crate::command::CommandRegistration { names: &["MLAL", "MLEADERALIGN"] });  // MLeaderAlignCommand
+inventory::submit!(crate::command::CommandRegistration { names: &["MLC", "MLEADERCOLLECT"] });  // MLeaderCollectCommand
+inventory::submit!(crate::command::CommandRegistration { names: &["MLEADERREMOVE", "MLR"] });  // MLeaderRemoveCommand

src/modules/annotate/mtext.rs

@@ -91,3 +91,7 @@ impl CadCommand for MTextCommand {
         None
     }
 }
+
+
+// ── Autocomplete registry ─────────────────────────────────
+inventory::submit!(crate::command::CommandRegistration { names: &["MT", "MTEXT"] });  // MTextCommand

src/modules/annotate/ordinate_dim.rs

@@ -86,3 +86,7 @@ impl CadCommand for OrdinateDimCommand {
 fn v3(p: Vec3) -> Vector3 {
     Vector3::new(p.x as f64, 0.0, p.z as f64)
 }
+
+
+// ── Autocomplete registry ─────────────────────────────────
+inventory::submit!(crate::command::CommandRegistration { names: &["DIMORDINATE", "DOR"] });  // OrdinateDimCommand

src/modules/annotate/qdim.rs

@@ -128,3 +128,7 @@ pub fn make_linear_dim(p1: Vec3, p2: Vec3, dim_pt: Vec3) -> EntityType {
     dim.base.actual_measurement = dim.measurement();
     EntityType::Dimension(Dimension::Linear(dim))
 }
+
+
+// ── Autocomplete registry ─────────────────────────────────
+inventory::submit!(crate::command::CommandRegistration { names: &["QDIM"] });  // QdimCommand

src/modules/annotate/radius_dim.rs

@@ -117,3 +117,7 @@ fn preview_wire(points: Vec<Vec3>) -> WireModel {
         fill_tris: vec![],
     }
 }
+
+
+// ── Autocomplete registry ─────────────────────────────────
+inventory::submit!(crate::command::CommandRegistration { names: &["DIMRADIUS"] });  // RadiusDimensionCommand

src/modules/annotate/table_cmd.rs

@@ -169,3 +169,7 @@ impl CadCommand for TableCommand {
         }
     }
 }
+
+
+// ── Autocomplete registry ─────────────────────────────────
+inventory::submit!(crate::command::CommandRegistration { names: &["TABLE"] });  // TableCommand

src/modules/annotate/text.rs

@@ -86,3 +86,7 @@ impl CadCommand for TextCommand {
         None
     }
 }
+
+
+// ── Autocomplete registry ─────────────────────────────────
+inventory::submit!(crate::command::CommandRegistration { names: &["DT", "T", "TEXT"] });  // TextCommand

src/modules/annotate/tolerance_cmd.rs

@@ -108,3 +108,7 @@ impl CadCommand for ToleranceCommand {
         })
     }
 }
+
+
+// ── Autocomplete registry ─────────────────────────────────
+inventory::submit!(crate::command::CommandRegistration { names: &["TOL", "TOLERANCE"] });  // ToleranceCommand