Embed Ignition metadata in SVG export (color, state, priority, tagpath)

Each symbol gets data-* attributes for Ignition integration:
- data-color="#000000", data-state="OFF", data-priority="No Alarms"
- data-tagpath="System/{MCM}/{Category}/{SubType}/{Label}"

Tag paths derived from label suffix (_VFD→VFD/APF, _TPE→Sensor/Tracking, etc.)

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

svelte-app/src/lib/export.ts

@@ -111,6 +111,51 @@ export function exportJSON() {
   downloadBlob(new Blob([JSON.stringify(data, null, 2)], { type: 'application/json' }), `${mcmName}_layout.json`);
 }
 
+/** Build Ignition tag path from device label and MCM name.
+ *  Format: System/{MCM}/{Category}/{SubCategory}/{Label} */
+function getIgnitionTagPath(label: string, mcm: string): string | null {
+  if (!label) return null;
+  const upper = label.toUpperCase();
+
+  // VFD drives (conveyors, spurs, curves, inductions)
+  if (/_VFD\d*$/i.test(label)) return `System/${mcm}/VFD/APF/${label}`;
+  // EPC controllers
+  if (/_EPC\d*$/i.test(label)) return `System/${mcm}/VFD/APF/${label}`;
+  // Network nodes
+  if (/_FIOM\d*$/i.test(label) || /_FIO\d*$/i.test(label)) return `System/${mcm}/Network_Node/FIO/${label}`;
+  if (/_FIOH\d*$/i.test(label)) return `System/${mcm}/Network_Node/HUB/${label}`;
+  if (/_SIO\d*$/i.test(label)) return `System/${mcm}/Network_Node/SIO/${label}`;
+  if (/_DPM\d*$/i.test(label)) return `System/${mcm}/Network_Node/DPM/${label}`;
+  // Sensors
+  if (/_TPE\d*$/i.test(label)) return `System/${mcm}/Sensor/Tracking/${label}`;
+  if (/_LPE\d*$/i.test(label)) return `System/${mcm}/Sensor/Long_Range/${label}`;
+  if (/_FPE\d*$/i.test(label)) return `System/${mcm}/Sensor/Full/${label}`;
+  if (/_JPE\d*$/i.test(label)) return `System/${mcm}/Sensor/Jam/${label}`;
+  if (/_PPE\d*$/i.test(label) || /_PS\d*$/i.test(label)) return `System/${mcm}/Sensor/Pressure/${label}`;
+  // Controls / Station
+  if (/_JR\d*_PB$/i.test(label) || /_JR\d*$/i.test(label)) return `System/${mcm}/Station/Jam_Reset/${label}`;
+  if (/_SS\d*_PB$/i.test(label)) return `System/${mcm}/Station/Start_Stop/${label}`;
+  if (/_S\d*_PB$/i.test(label)) return `System/${mcm}/Station/Start/${label}`;
+  // Solenoids / Beacons
+  if (/_BCN\d*$/i.test(label)) return `System/${mcm}/Solenoids/${label}`;
+  if (/_SOL\d*$/i.test(label)) return `System/${mcm}/Solenoids/${label}`;
+  // PDP
+  if (/^PDP/i.test(label)) return `System/${mcm}/PDP/${label}`;
+  // MCM
+  if (/^MCM/i.test(label)) return null; // MCM itself has no tag path
+
+  return null;
+}
+
+/** Build Ignition data attributes for a symbol group element */
+function getIgnitionAttrs(label: string): string {
+  const mcm = layout.currentMcm || 'MCM01';
+  const tagPath = getIgnitionTagPath(label, mcm);
+  let attrs = ` data-color="#000000" data-state="OFF" data-priority="No Alarms"`;
+  if (tagPath) attrs += ` data-tagpath="${tagPath}"`;
+  return attrs;
+}
+
 /** Serialize child elements of an SVG, stripping xmlns added by XMLSerializer */
 function serializeChildren(parent: Element): string {
   return Array.from(parent.children)
@@ -147,7 +192,8 @@ export async function exportSVG() {
     const cx = sym.x + sym.w / 2;
     const cy = sym.y + sym.h / 2;
     const label = sym.label || sym.name;
-    const idAttr = `id="${label}" inkscape:label="${label}"`;
+    const igAttrs = getIgnitionAttrs(label);
+    const idAttr = `id="${label}" inkscape:label="${label}"${igAttrs}`;
 
     // Build outer transform (rotation + mirror)
     const outerParts: string[] = [];