docs: fix operator overlap in long add/sub diagrams

Prodesire · Prodesire · commit 182a32897209 · 2026-06-18T13:51:00.000+08:00
Move the + / − operators into the vertical gap between operands a and b
so they no longer overlap the b row label.
diff --git a/objects/long-object/long-x-add.svg b/objects/long-object/long-x-add.svg
@@ -27,7 +27,7 @@
 <g class="val" fill="#0A463A"><text x="209" y="87" text-anchor="middle">1</text><text x="267" y="87" text-anchor="middle">6</text><text x="325" y="87" text-anchor="middle">8</text></g>
 
 <!-- plus -->
-<text x="150" y="143" text-anchor="middle" class="rl" fill="#5C5B53">+</text>
+<text x="150" y="122" text-anchor="middle" class="rl" fill="#5C5B53">+</text>
 
 <!-- row b -->
 <text x="158" y="157" text-anchor="end" class="rl" fill="#0A463A">b</text>
diff --git a/objects/long-object/long-x-sub.svg b/objects/long-object/long-x-sub.svg
@@ -22,7 +22,7 @@
 <g class="val" fill="#0A463A"><text x="179" y="87" text-anchor="middle">1</text><text x="237" y="87" text-anchor="middle">0</text><text x="295" y="87" text-anchor="middle">3</text></g>
 
 <!-- minus -->
-<text x="128" y="153" text-anchor="middle" class="rl" fill="#5C5B53">−</text>
+<text x="150" y="122" text-anchor="middle" class="rl" fill="#5C5B53">−</text>
 
 <!-- row b -->
 <g class="idx" fill="#9A988F"><text x="179" y="122" text-anchor="middle">0</text><text x="237" y="122" text-anchor="middle">1</text></g>
