Show the op dispatched by constructPath in the debugger

The `constructPath` op receives as arguments not only the
information to construct the path, but also the op to apply
the path to (such as "fill", or "stroke").

This commit updates the Stepper tool in the debugger to decode
that op, showing its name rather than just its numeric ID.

Author: nicolo-ribaudo

web/debugger.mjs

@@ -374,6 +374,14 @@ class Stepper {
         table.classList.add("showText");
         decArgs.append(table);
         table.append(charCodeRow, fontCharRow, unicodeRow);
+      } else if (fn === "constructPath") {
+        const [op, [path], minMax] = args;
+        decArgs = this.#c("td");
+        decArgs.append(JSON.stringify(this.#simplifyArgs(path)));
+        decArgs.append(this.#c("br"));
+        decArgs.append(`minMax: ${JSON.stringify(this.#simplifyArgs(minMax))}`);
+        decArgs.append(this.#c("br"));
+        decArgs.append(`→ ${opMap[op]}`);
       } else if (fn === "restore" && this.indentLevel > 0) {
         this.indentLevel--;
       }