Akkumulierten grünen Arbeitsstand landen (Basis für Weiterarbeit)

Bündelt den über mehrere Sessions gewachsenen, uncommitteten Stand in
einem Basis-Commit, damit Folge-Features isoliert darauf aufsetzen.
Verifikation: tsc --noEmit sauber, vitest 600/600 grün.

Enthalten (Details in PENDENZEN.md ✅-Liste / HANDOVER.md):
- truck-Integration: Profil-Extrusion + Verjüngung + Boolean-CSG (csgrs),
  Crate src-tauri/trucksolid, Werkzeug `extrude`, ExtrudedSolid-Modell.
- kernel2d-Port nach Rust/WASM (Phasen 1–5, Diff-Harness).
- render3d 3D-Live-Schnitt = 2D-Schnitt: geschichteter Bodenaufbau,
  Prioritäts-Verschneidung (section_boolean.rs), einstellbare
  Schichttrennlinien, per-Hatch-Strichstärke, relativeToWall-Orientierung.
- Interop-Export IFC4/STL/OBJ (Loch-Ausschnitt wallMeshCut), Schnellexport.
- Projektdatei .obp + OS-Lock (lock.rs, LockConflictDialog).
- Layout-Blätter (Modell/Editor/Panel/PDF), Ausschnitte, Override-Engine,
  Tragwerk-Stützen (Column), BIM-Tree-Panel.
- Bauteil-Typsystem (Tür/Fenster/Treppe-Typen), Betontreppe mit schräger
  Laufplatte, Text-/Textbox-Werkzeug, Mess-Werkzeug, 2D/3D-Griffe für
  Öffnungen/Treppen, Snap-Symbol-Restyle.

src/commands/cmds/column.ts

@@ -0,0 +1,152 @@
+// Stütze (Column) als Engine-Befehl — DOSSIER-Audit A4 Tragwerk. Ablauf:
+//   1) „Stütze setzen:" → Klick setzt den Einfügepunkt (Profil-Mitte) → commit.
+//
+// Optionen (togglebar, IMMER sichtbar): Profil Rechteck/Rund. Eine getippte Zahl
+// setzt das Leitmass (Rechteck: Seitenlänge → quadratisch; Rund: Durchmesser)
+// PERSISTENT über Aufrufe — analog `offset`/`extrude`, wo der pick-Schritt auch
+// eine Zahl annimmt. Höhe = Geschosshöhe des aktiven Geschosses (Default).
+//
+// Herkunft der Stützen-Felder (CommandContext):
+//   • floorId     ← ctx.level.id (aktives Geschoss)
+//   • categoryCode← "50" (Tragwerk; Fallback ctx.defaultCategoryCode)
+//   • height      ← Geschosshöhe (ctx.level.floorHeight), Fallback DEF_HEIGHT
+//
+// Bezeichner englisch, sichtbarer Text via t() (CONVENTIONS.md).
+
+import type { Column, ColumnProfile } from "../../model/types";
+import { uniqueId } from "../../tools/types";
+import { columnFootprint } from "../../geometry/column";
+import type {
+  Command,
+  CommandContext,
+  CommandResult,
+  CommandState,
+  CmdOption,
+  Project,
+  Vec2,
+} from "../types";
+
+/** Default-Ebene (Kategorie) für Stützen: „50" Tragwerk (Fallback: aktive). */
+const COLUMN_CATEGORY = "50";
+/** Default-Kantenlänge eines Rechteckprofils (Meter). */
+const DEF_SIZE = 0.3;
+/** Fallback-Höhe, falls das Geschoss keine floorHeight trägt (Meter). */
+const DEF_HEIGHT = 2.6;
+
+// ── Persistente Defaults (modulweit, leben über Befehls-Instanzen hinweg) ────
+const columnDefaults: { kind: "rect" | "round"; size: number } = {
+  kind: "rect",
+  size: DEF_SIZE,
+};
+
+/** Baut das aktuelle Default-Profil aus `columnDefaults`. */
+function currentProfile(): ColumnProfile {
+  if (columnDefaults.kind === "round") {
+    return { kind: "round", radius: columnDefaults.size / 2 };
+  }
+  return { kind: "rect", width: columnDefaults.size, depth: columnDefaults.size };
+}
+
+/** Fügt die Stütze immutabel an `project.columns` an. */
+function appendColumn(
+  p: Project,
+  position: Vec2,
+  ctx: CommandContext,
+): Project {
+  const height =
+    ctx.level.floorHeight != null && ctx.level.floorHeight > 0
+      ? ctx.level.floorHeight
+      : DEF_HEIGHT;
+  const column: Column = {
+    id: uniqueId("column"),
+    type: "column",
+    floorId: ctx.level.id,
+    categoryCode: COLUMN_CATEGORY,
+    position,
+    profile: currentProfile(),
+    rotation: 0,
+    height,
+  };
+  return { ...p, columns: [...(p.columns ?? []), column] };
+}
+
+interface ColState extends CommandState {
+  phase: "place" | "done";
+}
+
+const finish = (): [CommandState, CommandResult] => [
+  { phase: "done", lastPoint: null } as ColState,
+  { draft: null, done: true },
+];
+
+/** Footprint-Vorschau des aktuellen Default-Profils am Cursor. */
+function previewAt(pt: Vec2): CommandResult {
+  const ghost: Column = {
+    id: "_preview",
+    type: "column",
+    floorId: "",
+    categoryCode: COLUMN_CATEGORY,
+    position: pt,
+    profile: currentProfile(),
+    rotation: 0,
+    height: 0,
+  };
+  const size =
+    columnDefaults.kind === "round"
+      ? `Ø${(columnDefaults.size * 100).toFixed(0)}`
+      : `${(columnDefaults.size * 100).toFixed(0)}×${(columnDefaults.size * 100).toFixed(0)}`;
+  return {
+    draft: {
+      preview: [{ kind: "poly", pts: columnFootprint(ghost), closed: true }],
+      vertices: [],
+      hud: { at: pt, text: size },
+    },
+  };
+}
+
+export const columnCommand: Command = {
+  name: "column",
+  labelKey: "cmd.column.label",
+  prompt: () => "cmd.column.place",
+  accepts: () => ["point", "number", "option"],
+  options: (): CmdOption[] => [
+    {
+      id: "profile",
+      labelKey: "cmd.column.profile",
+      value: columnDefaults.kind === "round" ? "round" : "rect",
+    },
+  ],
+  floorOnly: true,
+
+  init: (): ColState => ({ phase: "place", lastPoint: null }),
+
+  onInput: (state, input, ctx): [CommandState, CommandResult] => {
+    const s = state as ColState;
+    if (s.phase === "done") return finish();
+    if (input.kind === "number") {
+      const v = Math.abs(input.value);
+      if (v > 1e-4) columnDefaults.size = v;
+      return [s, { draft: null }];
+    }
+    if (input.kind === "option" && input.id === "profile") {
+      columnDefaults.kind = columnDefaults.kind === "round" ? "rect" : "round";
+      return [s, { draft: null }];
+    }
+    if (input.kind === "point") {
+      return [
+        { phase: "done", lastPoint: null } as ColState,
+        { draft: null, done: true, commit: (p) => appendColumn(p, input.point, ctx) },
+      ];
+    }
+    return [s, { draft: null }];
+  },
+
+  onMove: (state, point): [CommandState, CommandResult] => {
+    const s = state as ColState;
+    if (s.phase !== "place") return [s, { draft: null }];
+    return [s, previewAt(point)];
+  },
+
+  onConfirm: (): [CommandState, CommandResult] => finish(),
+  onCancel: (): [CommandState, CommandResult] => finish(),
+};

src/commands/cmds/copy.ts

@@ -42,10 +42,20 @@ function targetFromFields(base: Vec2, locks: Record<string, number>, cursor: Vec
 }
 
 function hasSelection(sel: CommandSelection): boolean {
-  return sel.wallIds.length > 0 || sel.drawingId !== null;
+  return (
+    sel.wallIds.length > 0 ||
+    sel.drawingId !== null ||
+    !!sel.extrudedSolidId ||
+    !!sel.columnId
+  );
 }
 function toTransformSel(sel: CommandSelection): TransformSelection {
-  return { wallIds: sel.wallIds, drawingId: sel.drawingId };
+  return {
+    wallIds: sel.wallIds,
+    drawingId: sel.drawingId,
+    extrudedSolidId: sel.extrudedSolidId,
+    columnId: sel.columnId,
+  };
 }
 
 interface CopyBase extends CommandState {

src/commands/cmds/extrude.ts

@@ -0,0 +1,287 @@
+// Extrudieren — truck-Integration Phase 3 (docs/design/truck-plan.md, PENDENZEN
+// "truck-Integration"). Erzeugt aus einer geschlossenen 2D-Kurve (Polylinie-Ring,
+// Rechteck oder Kreis) einen 3D-Körper: Schritte:
+//   1) Profil bestimmen: ist genau EIN passendes geschlossenes Drawing2D
+//      selektiert, wird es genommen; sonst „Profil wählen:" → Klick auf einen Ring.
+//   2) „Höhe:" → Zahl tippen (PERSISTENT als Default über Aufrufe) ODER Enter
+//      bestätigt den zuletzt genutzten Default.
+//   3) „Verjüngung:" → Zahl 0..1 tippen (0=Prisma/Default, 1=Spitze — Kegel bei
+//      Kreis-, Pyramide bei Polygon-Profil) ODER Enter für den zuletzt
+//      genutzten Default (persistent, wie Höhe). → commit neues ExtrudedSolid.
+//
+// Die eigentliche Extrusion (truck-WASM) läuft asynchron erst in toWalls3d.ts
+// (emitExtrudedSolids); dieser Befehl legt nur die Rohdaten (Punkte + Höhe +
+// Verjüngung) im Projekt ab.
+
+import type { Drawing2D, ExtrudedSolid } from "../../model/types";
+import { uniqueId } from "../../tools/types";
+import { polylineEdges, pointSegmentDistance } from "../../geometry/kernel2d";
+import type {
+  Command,
+  CommandContext,
+  CommandResult,
+  CommandSelection,
+  CommandState,
+  Project,
+  Vec2,
+} from "../types";
+
+const HIT_TOL = 0.25; // Modell-Meter: Pick-Toleranz für die Profil-Wahl
+
+/** Persistente Extrusionshöhe über Aufrufe hinweg (Default: Geschosshöhe). */
+let lastHeight = 2.6;
+/** Persistente Verjüngung über Aufrufe hinweg (Default: Prisma, kein Kegel/Pyramide). */
+let lastTaper = 0;
+
+// ── Profil-Abstraktion: geschlossene polyline/rect/circle → Punktliste ─────
+
+/** Kreis-Tessellierung für Footprint/Auswahl/bbox (48-Eck, wie circle.ts). */
+function circlePts(center: Vec2, r: number): Vec2[] {
+  const N = 48;
+  const pts: Vec2[] = [];
+  for (let i = 0; i < N; i++) {
+    const t = (i / N) * Math.PI * 2;
+    pts.push({ x: center.x + r * Math.cos(t), y: center.y + r * Math.sin(t) });
+  }
+  return pts;
+}
+
+/** Ein extrudierfähiges Profil: Tessellierung + optional die echte Kreis-Geometrie. */
+interface Profile {
+  pts: Vec2[];
+  circle?: { center: Vec2; r: number };
+}
+
+/** Wandelt ein extrudierfähiges (geschlossenes) Drawing2D in ein Profil. */
+function geomToProfile(d: Drawing2D): Profile | null {
+  const g = d.geom;
+  if (g.shape === "polyline" && g.closed && g.pts.length >= 3) return { pts: g.pts };
+  if (g.shape === "rect") {
+    return { pts: [g.min, { x: g.max.x, y: g.min.y }, g.max, { x: g.min.x, y: g.max.y }] };
+  }
+  if (g.shape === "circle") {
+    return { pts: circlePts(g.center, g.r), circle: { center: g.center, r: g.r } };
+  }
+  return null;
+}
+
+/** Genau ein passendes Drawing2D vorselektiert? Dann liefere sein Profil. */
+function singleSelectedProfile(
+  project: Project,
+  sel: CommandSelection,
+): ({ d: Drawing2D } & Profile) | null {
+  if (!sel.drawingId || sel.wallIds.length > 0) return null;
+  const d = project.drawings2d.find((x) => x.id === sel.drawingId);
+  if (!d) return null;
+  const profile = geomToProfile(d);
+  return profile ? { d, ...profile } : null;
+}
+
+/** Nächstes extrudierfähige Drawing2D zum Klickpunkt (innerhalb Toleranz). */
+function pickProfileAt(
+  project: Project,
+  levelId: string,
+  pt: Vec2,
+): ({ d: Drawing2D } & Profile) | null {
+  let best: ({ d: Drawing2D } & Profile) | null = null;
+  let bestD = HIT_TOL;
+  for (const d of project.drawings2d) {
+    if (d.levelId !== levelId) continue;
+    const profile = geomToProfile(d);
+    if (!profile) continue;
+    for (const [a, b] of polylineEdges(profile.pts, true)) {
+      const dd = pointSegmentDistance(pt, a, b);
+      if (dd < bestD) {
+        bestD = dd;
+        best = { d, ...profile };
+      }
+    }
+  }
+  return best;
+}
+
+/**
+ * Hängt den neuen Körper an UND entfernt das Quell-Profil (`sourceId`) aus
+ * `drawings2d` — die Polylinie/das Rechteck WIRD zur Extrusion, sie bleibt
+ * nicht als unabhängiges Duplikat liegen (sonst zwei Objekte am selben Ort,
+ * eines davon im Grundriss unsichtbar verwaist).
+ */
+function appendExtrudedSolid(
+  p: Project,
+  profile: Profile,
+  height: number,
+  taper: number,
+  sourceId: string,
+  ctx: CommandContext,
+): Project {
+  const solid: ExtrudedSolid = {
+    id: uniqueId("extrude"),
+    type: "extrudedSolid",
+    levelId: ctx.level.id,
+    points: profile.pts,
+    height,
+    circle: profile.circle,
+    ...(taper > 0 ? { taper } : {}),
+  };
+  return {
+    ...p,
+    drawings2d: p.drawings2d.filter((d) => d.id !== sourceId),
+    extrudedSolids: [...(p.extrudedSolids ?? []), solid],
+  };
+}
+
+// ── Zustand ───────────────────────────────────────────────────────────────────
+
+interface ExPick extends CommandState {
+  phase: "pick";
+}
+interface ExHeight extends CommandState {
+  phase: "height";
+  profile: Profile;
+  /** Id des Quell-Drawing2D, das beim Commit ersetzt (entfernt) wird. */
+  sourceId: string;
+  cursor: Vec2 | null;
+}
+interface ExTaper extends CommandState {
+  phase: "taper";
+  profile: Profile;
+  sourceId: string;
+  height: number;
+  cursor: Vec2 | null;
+}
+interface ExDone extends CommandState {
+  phase: "done";
+}
+type ExState = ExPick | ExHeight | ExTaper | ExDone;
+
+const finish = (): [CommandState, CommandResult] => [
+  { phase: "done", lastPoint: null } as ExDone,
+  { draft: null, done: true },
+];
+
+/** Höhe entgegengenommen → Verjüngungs-Schritt betreten (HUD zeigt Default). */
+const enterTaperPhase = (
+  profile: Profile,
+  height: number,
+  sourceId: string,
+): [CommandState, CommandResult] => [
+  { phase: "taper", profile, sourceId, height, cursor: null } as ExTaper,
+  { draft: null },
+];
+
+const commitTaper = (
+  profile: Profile,
+  height: number,
+  taper: number,
+  sourceId: string,
+  ctx: CommandContext,
+): [CommandState, CommandResult] => [
+  { phase: "done", lastPoint: null } as ExDone,
+  { draft: null, done: true, commit: (p) => appendExtrudedSolid(p, profile, height, taper, sourceId, ctx) },
+];
+
+export const extrudeCommand: Command = {
+  name: "extrude",
+  labelKey: "cmd.extrude.label",
+  prompt: (s) => {
+    const phase = (s as ExState).phase;
+    if (phase === "height") return "cmd.extrude.height";
+    if (phase === "taper") return "cmd.extrude.taper";
+    return "cmd.extrude.pick";
+  },
+  // Auch der „pick"-Schritt nimmt eine Zahl an, damit eine getippte Höhe sofort
+  // greift, wenn ein Profil vorselektiert ist (dann wird „pick" live wie
+  // „height" behandelt — analog offset.ts).
+  accepts: () => ["point", "number"],
+  options: () => [],
+  floorOnly: true,
+
+  init: (): ExPick => ({ phase: "pick", lastPoint: null }),
+
+  onInput: (state, input, ctx): [CommandState, CommandResult] => {
+    const s = state as ExState;
+    if (s.phase === "done") return finish();
+
+    if (s.phase === "pick") {
+      const pre = singleSelectedProfile(ctx.project, ctx.selection);
+      if (pre) {
+        if (input.kind === "number") {
+          const h = Math.abs(input.value);
+          if (h < 1e-6) return [s, { draft: null }];
+          lastHeight = h;
+          return enterTaperPhase(pre, h, pre.d.id);
+        }
+        // Punkt im vorselektierten Fall: Höhen-Schritt betreten (HUD zeigt Default).
+        const ns: ExHeight = { phase: "height", profile: pre, sourceId: pre.d.id, cursor: null, lastPoint: null };
+        return [ns, { draft: null }];
+      }
+      if (input.kind === "point") {
+        const hit = pickProfileAt(ctx.project, ctx.level.id, input.point);
+        if (!hit) return [s, { draft: null }];
+        const ns: ExHeight = { phase: "height", profile: hit, sourceId: hit.d.id, cursor: null, lastPoint: null };
+        return [ns, { draft: null }];
+      }
+      return [s, { draft: null }];
+    }
+
+    if (s.phase === "height") {
+      if (input.kind === "number") {
+        const h = Math.abs(input.value);
+        if (h < 1e-6) return [s, { draft: null }];
+        lastHeight = h;
+        return enterTaperPhase(s.profile, h, s.sourceId);
+      }
+      return [s, { draft: null }];
+    }
+
+    // phase === "taper"
+    const ts = s as ExTaper;
+    if (input.kind === "number") {
+      const t = Math.min(1, Math.max(0, input.value));
+      lastTaper = t;
+      return commitTaper(ts.profile, ts.height, t, ts.sourceId, ctx);
+    }
+    return [ts, { draft: null }];
+  },
+
+  onMove: (state, point): [CommandState, CommandResult] => {
+    const s = state as ExState;
+    if (s.phase === "height") {
+      const ns: ExHeight = { ...s, cursor: point };
+      return [
+        ns,
+        {
+          draft: {
+            preview: [{ kind: "poly", pts: s.profile.pts, closed: true }],
+            vertices: [],
+            hud: { at: point, text: `${lastHeight.toFixed(2)} m` },
+          },
+        },
+      ];
+    }
+    if (s.phase === "taper") {
+      const ns: ExTaper = { ...s, cursor: point };
+      return [
+        ns,
+        {
+          draft: {
+            preview: [{ kind: "poly", pts: s.profile.pts, closed: true }],
+            vertices: [],
+            hud: { at: point, text: lastTaper.toFixed(2) },
+          },
+        },
+      ];
+    }
+    return [s, { draft: null }];
+  },
+
+  // Enter/Rechtsklick: Höhen-Schritt → Default-Höhe übernehmen + Verjüngungs-
+  // Schritt betreten; Verjüngungs-Schritt → Default-Verjüngung übernehmen + committen.
+  onConfirm: (state, ctx): [CommandState, CommandResult] => {
+    const s = state as ExState;
+    if (s.phase === "height") return enterTaperPhase(s.profile, lastHeight, s.sourceId);
+    if (s.phase === "taper") return commitTaper(s.profile, s.height, lastTaper, s.sourceId, ctx);
+    return finish();
+  },
+  onCancel: (): [CommandState, CommandResult] => finish(),
+};

src/commands/cmds/measure.ts

@@ -0,0 +1,74 @@
+// Messen — schnelles, unverbindliches Distanz-/Winkel-Messwerkzeug (kein Element
+// wird erzeugt). Schritte:
+//   1) „Messen von:" → Punkt (Startpunkt)
+//   2) „bis:"         → Live-Vorschau (Messlinie + Distanz·Winkel im HUD); Klick
+//                        setzt einen neuen Startpunkt (fortlaufend messen).
+// Esc/Enter beendet. Rein visuell: `commit` bleibt immer leer, das Modell ändert
+// sich nie — nur der Entwurf (Linie + HUD) zeigt das Mass.
+
+import type {
+  Command,
+  CommandResult,
+  CommandState,
+  ToolDraft,
+  Vec2,
+} from "../types";
+
+const segLen = (a: Vec2, b: Vec2): number => Math.hypot(b.x - a.x, b.y - a.y);
+const segAngleDeg = (a: Vec2, b: Vec2): number =>
+  (Math.atan2(b.y - a.y, b.x - a.x) * 180) / Math.PI;
+
+interface MeasureStart extends CommandState {
+  phase: "start";
+}
+interface MeasureTo extends CommandState {
+  phase: "to";
+  from: Vec2;
+  cursor: Vec2 | null;
+}
+type MeasureState = MeasureStart | MeasureTo;
+
+/** Vorschau: Messlinie from→cursor + Distanz·Winkel im HUD am Cursor. */
+function measureDraft(from: Vec2, cursor: Vec2): ToolDraft {
+  const dist = segLen(from, cursor);
+  const ang = ((segAngleDeg(from, cursor) % 360) + 360) % 360;
+  return {
+    preview: [{ kind: "line", a: from, b: cursor }],
+    vertices: [from, cursor],
+    hud: { at: cursor, text: `${dist.toFixed(3)} m · ${ang.toFixed(1)}°` },
+  };
+}
+
+const idle = (): [CommandState, CommandResult] => [
+  { phase: "start", lastPoint: null } as MeasureStart,
+  { draft: null, done: true },
+];
+
+export const measureCommand: Command = {
+  name: "measure",
+  labelKey: "cmd.measure.label",
+  prompt: (s) => ((s as MeasureState).phase === "to" ? "cmd.measure.to" : "cmd.measure.start"),
+  accepts: () => ["point"],
+  options: () => [],
+  init: (): MeasureStart => ({ phase: "start", lastPoint: null }),
+
+  onInput: (state, input): [CommandState, CommandResult] => {
+    const s = state as MeasureState;
+    if (input.kind !== "point") {
+      return [s, { draft: s.phase === "to" && s.cursor ? measureDraft(s.from, s.cursor) : null }];
+    }
+    // Jeder Klick setzt den (neuen) Startpunkt — fortlaufendes Messen, bis Esc/Enter.
+    const ns: MeasureTo = { phase: "to", from: input.point, cursor: input.point, lastPoint: input.point };
+    return [ns, { draft: measureDraft(input.point, input.point) }];
+  },
+
+  onMove: (state, point): [CommandState, CommandResult] => {
+    const s = state as MeasureState;
+    if (s.phase !== "to") return [s, { draft: null }];
+    const ns: MeasureTo = { ...s, cursor: point };
+    return [ns, { draft: measureDraft(s.from, point) }];
+  },
+
+  onConfirm: (): [CommandState, CommandResult] => idle(),
+  onCancel: (): [CommandState, CommandResult] => idle(),
+};

src/commands/cmds/mirror.ts

@@ -32,12 +32,22 @@ const EPS = 1e-6;
 
 /** Hat die Auswahl überhaupt etwas Spiegelbares? */
 function hasSelection(sel: CommandSelection): boolean {
-  return sel.wallIds.length > 0 || sel.drawingId !== null;
+  return (
+    sel.wallIds.length > 0 ||
+    sel.drawingId !== null ||
+    !!sel.extrudedSolidId ||
+    !!sel.columnId
+  );
 }
 
 /** Auswahl → TransformSelection (gleiche Form). */
 function toTransformSel(sel: CommandSelection): TransformSelection {
-  return { wallIds: sel.wallIds, drawingId: sel.drawingId };
+  return {
+    wallIds: sel.wallIds,
+    drawingId: sel.drawingId,
+    extrudedSolidId: sel.extrudedSolidId,
+    columnId: sel.columnId,
+  };
 }
 
 // Zustand: erst ersten Achsenpunkt setzen, dann den zweiten (mit Auswahl-Snapshot).

src/commands/cmds/move.ts

@@ -49,12 +49,22 @@ function targetFromFields(base: Vec2, locks: Record<string, number>, cursor: Vec
 
 /** Hat die Auswahl überhaupt etwas Verschiebbares? */
 function hasSelection(sel: CommandSelection): boolean {
-  return sel.wallIds.length > 0 || sel.drawingId !== null;
+  return (
+    sel.wallIds.length > 0 ||
+    sel.drawingId !== null ||
+    !!sel.extrudedSolidId ||
+    !!sel.columnId
+  );
 }
 
 /** Auswahl → TransformSelection (gleiche Form). */
 function toTransformSel(sel: CommandSelection): TransformSelection {
-  return { wallIds: sel.wallIds, drawingId: sel.drawingId };
+  return {
+    wallIds: sel.wallIds,
+    drawingId: sel.drawingId,
+    extrudedSolidId: sel.extrudedSolidId,
+    columnId: sel.columnId,
+  };
 }
 
 // Zustand: erst Basispunkt setzen, dann Ziel (mit Auswahl-Snapshot vom Start).

src/commands/cmds/text.ts

@@ -0,0 +1,76 @@
+// Text — modellverankerter Einzeltext als 2D-Element. Schritte:
+//   1) „Ankerpunkt:" → Punkt (Position im Modell)
+//   2) „Text:"        → getippte Zeile (das Label) → commit Drawing2D {shape:"text"}
+//
+// Der Text-Schritt nimmt Freitext an (accepts:["text"]) — die Engine reicht die
+// komplette getippte Zeile 1:1 durch (auch Zahlen/Kommas). Gerendert wird der
+// Text in generatePlan als `drawingText` (SVG), analog zum DXF-Import.
+
+import type { Drawing2D } from "../../model/types";
+import { uniqueId } from "../../tools/types";
+import type {
+  Command,
+  CommandContext,
+  CommandResult,
+  CommandState,
+  Project,
+  Vec2,
+} from "../types";
+
+/** Default-Schrifthöhe eines frei platzierten Texts in Modell-Metern. */
+const DEFAULT_TEXT_HEIGHT_M = 0.25;
+
+interface TextIdle extends CommandState {
+  phase: "point";
+}
+interface TextLabel extends CommandState {
+  phase: "label";
+  at: Vec2;
+}
+type TextState = TextIdle | TextLabel;
+
+function appendText(p: Project, at: Vec2, text: string, ctx: CommandContext): Project {
+  const label = text.trim();
+  if (label === "") return p;
+  const d: Drawing2D = {
+    id: uniqueId("dr2d"),
+    type: "drawing2d",
+    levelId: ctx.level.id,
+    categoryCode: ctx.defaultCategoryCode,
+    geom: { shape: "text", at, text: label, height: DEFAULT_TEXT_HEIGHT_M, angle: 0 },
+  };
+  return { ...p, drawings2d: [...p.drawings2d, d] };
+}
+
+const idle = (): [CommandState, CommandResult] => [
+  { phase: "point", lastPoint: null },
+  { draft: null, done: true },
+];
+
+export const textCommand: Command = {
+  name: "text",
+  labelKey: "cmd.text.label",
+  prompt: (s) => ((s as TextState).phase === "label" ? "cmd.text.enter" : "cmd.text.point"),
+  accepts: (s) => ((s as TextState).phase === "label" ? ["text"] : ["point"]),
+  options: () => [],
+  init: (): TextIdle => ({ phase: "point", lastPoint: null }),
+
+  onInput: (state, input, ctx): [CommandState, CommandResult] => {
+    const s = state as TextState;
+    if (s.phase !== "label") {
+      if (input.kind !== "point") return [s, { draft: null }];
+      const ns: TextLabel = { phase: "label", at: input.point, lastPoint: input.point };
+      return [ns, { draft: null }];
+    }
+    if (input.kind !== "text") return [s, { draft: null }];
+    const at = s.at;
+    return [
+      { phase: "point", lastPoint: null },
+      { draft: null, done: true, commit: (p) => appendText(p, at, input.text, ctx) },
+    ];
+  },
+
+  onMove: (state): [CommandState, CommandResult] => [state, { draft: null }],
+  onConfirm: (): [CommandState, CommandResult] => idle(),
+  onCancel: (): [CommandState, CommandResult] => idle(),
+};

src/commands/cmds/textbox.ts

@@ -0,0 +1,127 @@
+// Textspalte (Absatztext) — wie das Text-Werkzeug, aber mit einer Spaltenbreite:
+// der Text bricht beim Rendern wortweise auf diese Breite um. Schritte:
+//   1) „Ankerpunkt:"     → Punkt (oben-links der Spalte)
+//   2) „Spaltenbreite:"   → Punkt (die horizontale Distanz zum Anker = Breite;
+//                            Live-Vorschau der Breitenlinie)
+//   3) „Text:"            → getippte Zeile → commit Drawing2D {shape:"text", width}
+//
+// Reuse des bestehenden {shape:"text"}-Elements (mit `width`) — so erben Selektion,
+// Verschieben und Griff automatisch vom Einzeltext; nur die Breite kommt hinzu.
+
+import type { Drawing2D } from "../../model/types";
+import { uniqueId } from "../../tools/types";
+import type {
+  Command,
+  CommandContext,
+  CommandResult,
+  CommandState,
+  Project,
+  ToolDraft,
+  Vec2,
+} from "../types";
+
+/** Default-Schrifthöhe einer Textspalte in Modell-Metern. */
+const DEFAULT_TEXT_HEIGHT_M = 0.25;
+/** Kleinste sinnvolle Spaltenbreite (Meter). */
+const MIN_WIDTH_M = 0.2;
+
+interface TbPoint extends CommandState {
+  phase: "point";
+}
+interface TbWidth extends CommandState {
+  phase: "width";
+  at: Vec2;
+  cursor: Vec2 | null;
+}
+interface TbLabel extends CommandState {
+  phase: "label";
+  at: Vec2;
+  width: number;
+}
+type TbState = TbPoint | TbWidth | TbLabel;
+
+/** Horizontale Spaltenbreite aus Anker + Cursor (Betrag der x-Differenz, geklemmt). */
+function widthOf(at: Vec2, cursor: Vec2): number {
+  return Math.max(MIN_WIDTH_M, Math.abs(cursor.x - at.x));
+}
+
+/** Vorschau: waagrechte Breitenlinie am Anker (zeigt die Spaltenbreite). */
+function widthDraft(at: Vec2, cursor: Vec2): ToolDraft {
+  const w = widthOf(at, cursor);
+  const b: Vec2 = { x: at.x + w, y: at.y };
+  return {
+    preview: [{ kind: "line", a: at, b }],
+    vertices: [at, b],
+    hud: { at: b, text: `${w.toFixed(2)} m` },
+  };
+}
+
+function appendTextbox(
+  p: Project,
+  at: Vec2,
+  width: number,
+  text: string,
+  ctx: CommandContext,
+): Project {
+  const label = text.trim();
+  if (label === "") return p;
+  const d: Drawing2D = {
+    id: uniqueId("dr2d"),
+    type: "drawing2d",
+    levelId: ctx.level.id,
+    categoryCode: ctx.defaultCategoryCode,
+    geom: { shape: "text", at, text: label, height: DEFAULT_TEXT_HEIGHT_M, angle: 0, width },
+  };
+  return { ...p, drawings2d: [...p.drawings2d, d] };
+}
+
+const idle = (): [CommandState, CommandResult] => [
+  { phase: "point", lastPoint: null } as TbPoint,
+  { draft: null, done: true },
+];
+
+export const textboxCommand: Command = {
+  name: "textbox",
+  labelKey: "cmd.textbox.label",
+  prompt: (s) => {
+    const ts = s as TbState;
+    if (ts.phase === "label") return "cmd.textbox.enter";
+    if (ts.phase === "width") return "cmd.textbox.width";
+    return "cmd.textbox.point";
+  },
+  accepts: (s) => ((s as TbState).phase === "label" ? ["text"] : ["point"]),
+  options: () => [],
+  init: (): TbPoint => ({ phase: "point", lastPoint: null }),
+
+  onInput: (state, input, ctx): [CommandState, CommandResult] => {
+    const s = state as TbState;
+    if (s.phase === "point") {
+      if (input.kind !== "point") return [s, { draft: null }];
+      const ns: TbWidth = { phase: "width", at: input.point, cursor: input.point, lastPoint: input.point };
+      return [ns, { draft: widthDraft(input.point, input.point) }];
+    }
+    if (s.phase === "width") {
+      if (input.kind !== "point") return [s, { draft: s.cursor ? widthDraft(s.at, s.cursor) : null }];
+      const width = widthOf(s.at, input.point);
+      const ns: TbLabel = { phase: "label", at: s.at, width, lastPoint: input.point };
+      return [ns, { draft: null }];
+    }
+    // label
+    if (input.kind !== "text") return [s, { draft: null }];
+    const { at, width } = s;
+    return [
+      { phase: "point", lastPoint: null } as TbPoint,
+      { draft: null, done: true, commit: (p) => appendTextbox(p, at, width, input.text, ctx) },
+    ];
+  },
+
+  onMove: (state, point): [CommandState, CommandResult] => {
+    const s = state as TbState;
+    if (s.phase !== "width") return [s, { draft: null }];
+    const ns: TbWidth = { ...s, cursor: point };
+    return [ns, { draft: widthDraft(s.at, point) }];
+  },
+
+  onConfirm: (): [CommandState, CommandResult] => idle(),
+  onCancel: (): [CommandState, CommandResult] => idle(),
+};

src/commands/engine.ts

@@ -328,6 +328,14 @@ export class CommandEngine {
       }
     }
 
+    // Freitext-Schritt (z. B. Text-Platzierung): der Schritt nimmt beliebigen
+    // Text als Label — die komplette getippte Zeile geht 1:1 durch (auch Zahlen/
+    // Kommas), bevor die numerische/Koordinaten-Auflösung greift.
+    if (accepts.includes("text")) {
+      this.feed({ kind: "text", text });
+      return;
+    }
+
     const parsed = parseInput(text);
 
     // Tab-Feld-Modus (§2.7): eine nackte Zahl LOCKT das aktive Feld (statt als

src/commands/registry.ts

@@ -10,18 +10,23 @@ import { wallCommand } from "./cmds/wall";
 import { ceilingCommand } from "./cmds/ceiling";
 import { openingCommand, fensterCommand, tuerCommand } from "./cmds/opening";
 import { stairCommand } from "./cmds/stair";
+import { columnCommand } from "./cmds/column";
 import { roomCommand } from "./cmds/room";
 import { rectCommand } from "./cmds/rect";
 import { circleCommand } from "./cmds/circle";
 import { arcCommand } from "./cmds/arc";
+import { textCommand } from "./cmds/text";
+import { textboxCommand } from "./cmds/textbox";
 import { moveCommand } from "./cmds/move";
 import { mirrorCommand } from "./cmds/mirror";
 import { joinCommand } from "./cmds/join";
 import { copyCommand } from "./cmds/copy";
 import { offsetCommand } from "./cmds/offset";
+import { extrudeCommand } from "./cmds/extrude";
 import { trimCommand } from "./cmds/trim";
 import { importCommand } from "./cmds/import";
 import { terrainCommand } from "./cmds/terrain";
+import { measureCommand } from "./cmds/measure";
 
 /** Alle bekannten Befehle, Schlüssel = Befehlsname (lowercase). */
 export const COMMANDS: Record<string, Command> = {
@@ -31,20 +36,25 @@ export const COMMANDS: Record<string, Command> = {
   fenster: fensterCommand,
   tuer: tuerCommand,
   stair: stairCommand,
+  column: columnCommand,
   room: roomCommand,
   line: lineCommand,
   polyline: polylineCommand,
   rect: rectCommand,
   circle: circleCommand,
   arc: arcCommand,
+  text: textCommand,
+  textbox: textboxCommand,
   move: moveCommand,
   mirror: mirrorCommand,
   join: joinCommand,
   copy: copyCommand,
   offset: offsetCommand,
+  extrude: extrudeCommand,
   trim: trimCommand,
   import: importCommand,
   terrain: terrainCommand,
+  measure: measureCommand,
 };
 
 /**
@@ -63,6 +73,8 @@ export const ALIASES: Record<string, string> = {
   oe: "opening",
   treppe: "stair",
   tp: "stair",
+  stuetze: "column",
+  stütze: "column",
   raum: "room",
   rm: "room",
   l: "line",
@@ -71,6 +83,9 @@ export const ALIASES: Record<string, string> = {
   c: "circle",
   a: "arc",
   bogen: "arc",
+  tx: "text",
+  txt: "text",
+  beschriftung: "text",
   m: "move",
   s: "mirror",
   spiegeln: "mirror",
@@ -78,6 +93,7 @@ export const ALIASES: Record<string, string> = {
   verbinden: "join",
   cp: "copy",
   o: "offset",
+  ex: "extrude",
   tr: "trim",
   imp: "import",
   ter: "terrain",

src/commands/types.ts

@@ -19,7 +19,7 @@ export type { DraftShape, SnapResult, ToolDraft } from "../tools/types";
 // ── Eingabe-Arten ────────────────────────────────────────────────────────────
 
 /** Arten von Eingaben, die ein Schritt annehmen kann. */
-export type AcceptKind = "point" | "number" | "option" | "selection";
+export type AcceptKind = "point" | "number" | "option" | "text" | "selection";
 
 /**
  * Geparste, noch nicht aufgelöste Roh-Eingabe aus der Command-Line bzw. der
@@ -67,6 +67,10 @@ export interface CommandSelection {
    * `drawingId` (falls gesetzt) als einziges Element.
    */
   drawingIds?: string[];
+  /** Gewählter extrudierter Körper (truck-Integration), falls einer selektiert ist. */
+  extrudedSolidId?: string | null;
+  /** Gewählte Stütze (Tragwerk), falls eine selektiert ist. */
+  columnId?: string | null;
 }
 
 /** Live-Kontext, den ein Befehl bei jedem Schritt erhält (analog ToolContext). */