task(A4.5): migrate revcloud/hatch/measure tools to v2

frontend/src/plugins/builtin/core-drawing/index.ts

@@ -26,6 +26,8 @@ let arcCenter: Pt | null = null;
 let arcStartPt: Pt | null = null;
 /** Laufende Polyline/Polygon-Punkte; Commit per ENTER. */
 let polyPoints: Pt[] = [];
+/** Laufende RevCloud-Punkte (A4.5); Commit per ENTER. */
+let cloudPoints: Pt[] = [];
 
 function optsOf(ctx: FullToolContext): { stroke: string; layerId: string } {
   return {
@@ -354,16 +356,73 @@ function buildPoly(type: 'polyline' | 'polygon', pts: Pt[], ctx: FullToolContext
   } as unknown as CADElement;
 }
 
-/** V2-Plugin: Kern-Zeichenwerkzeuge (Pilot: line; A4.2: rect; A4.3: circle/arc/poly). */
+/**
+ * revcloud-Werkzeug (A4.5): Mehrklick-Revisionswolke wie Poly-Muster;
+ * ENTER committet ab 3 Punkten. Legacy-Konvention: arcHeight 8.
+ */
+export const revcloudTool: ToolExtensionV2 = {
+  manifest: {
+    id: 'revcloud', label: 'RevCloud', icon: '\u2611', ribbonTab: 'format', tags: ['pro'],
+    description: 'Revisionswolke: Punkte klicken, ENTER beendet',
+  },
+  optionsSchema: [{ key: 'strokeColor', label: 'Farbe', type: 'color' }],
+  handlers: {
+    down(e, ctx) {
+      cloudPoints.push(e.world);
+      ctx.setStatus(`RevCloud: ${cloudPoints.length} Punkte \u2013 ENTER beendet`);
+    },
+    move(e, ctx) {
+      if (cloudPoints.length === 0) return;
+      ctx.setPreview?.(buildRevCloud([...cloudPoints, e.world], ctx));
+    },
+    up() { /* commit via ENTER */ },
+    key(e, ctx) {
+      if (e.key !== 'Enter') return false;
+      if (cloudPoints.length < 3) {
+        ctx.setStatus('RevCloud: mindestens 3 Punkte n\u00f6tig');
+        return true;
+      }
+      const c = ctx as FullToolContext;
+      if (!c.doc) { cloudPoints = []; return true; }
+      const el = buildRevCloud(cloudPoints, c);
+      c.doc.transact(() => c.doc!.addElement(el));
+      cloudPoints = [];
+      ctx.setPreview?.(null);
+      ctx.setStatus(`RevCloud erstellt (${el.id})`);
+      return true;
+    },
+    cancel(ctx) {
+      cloudPoints = [];
+      ctx.setPreview?.(null);
+      ctx.setStatus('RevCloud abgebrochen');
+    },
+  },
+};
+
+function buildRevCloud(pts: Pt[], ctx: FullToolContext): CADElement {
+  const o = optsOf(ctx);
+  const xs = pts.map((p) => p.x);
+  const ys = pts.map((p) => p.y);
+  return {
+    id: uid('revcloud'), type: 'revcloud', layerId: o.layerId,
+    x: (Math.min(...xs) + Math.max(...xs)) / 2,
+    y: (Math.min(...ys) + Math.max(...ys)) / 2,
+    width: Math.max(...xs) - Math.min(...xs),
+    height: Math.max(...ys) - Math.min(...ys),
+    properties: { points: pts.map((p) => ({ x: p.x, y: p.y })), arcHeight: 8, fill: 'none', stroke: '#e0e0e0', strokeWidth: 1.5 },
+  } as unknown as CADElement;
+}
+
+/** V2-Plugin: Kern-Zeichenwerkzeuge (A4.x schrittweise migriert). */
 export const coreDrawingPlugin: PluginV2 = {
   manifest: {
     id: 'core-drawing',
     name: 'Zeichnen (Kern)',
-    version: '1.2.0',
+    version: '1.3.0',
     author: 'web-cad team',
-    description: 'Grundlegende Zeichenwerkzeuge (V2: Linie, Rechteck, Kreis, Bogen, Polylinie, Polygon).',
+    description: 'Zeichenwerkzeuge V2: Linie, Rechteck, Kreis, Bogen, Polylinie, Polygon, RevCloud.',
     category: 'tools',
     enabledByDefault: true,
   },
-  tools: [lineTool, rectTool, circleTool, arcTool, polylineTool, polygonTool],
+  tools: [lineTool, rectTool, circleTool, arcTool, polylineTool, polygonTool, revcloudTool],
 };