implement expression validation and build script setup in workspace

public/icons/Condition.svg

@@ -1 +1 @@
-<svg stroke="currentColor" fill="currentColor" stroke-width="0" viewBox="0 0 512 512" height="200px" width="200px" xmlns="http://www.w3.org/2000/svg"><path d="M256 8C119.043 8 8 119.083 8 256c0 136.997 111.043 248 248 248s248-111.003 248-248C504 119.083 392.957 8 256 8zm0 448c-110.532 0-200-89.431-200-200 0-110.495 89.472-200 200-200 110.491 0 200 89.471 200 200 0 110.53-89.431 200-200 200zm107.244-255.2c0 67.052-72.421 68.084-72.421 92.863V300c0 6.627-5.373 12-12 12h-45.647c-6.627 0-12-5.373-12-12v-8.659c0-35.745 27.1-50.034 47.579-61.516 17.561-9.845 28.324-16.541 28.324-29.579 0-17.246-21.999-28.693-39.784-28.693-23.189 0-33.894 10.977-48.942 29.969-4.057 5.12-11.46 6.071-16.666 2.124l-27.824-21.098c-5.107-3.872-6.251-11.066-2.644-16.363C184.846 131.491 214.94 112 261.794 112c49.071 0 101.45 38.304 101.45 88.8zM298 368c0 23.159-18.841 42-42 42s-42-18.841-42-42 18.841-42 42-42 42 18.841 42 42z"></path></svg>
+<svg stroke="currentColor" fill="currentColor" stroke-width="0" viewBox="0 0 24 24" height="1em" width="1em" xmlns="http://www.w3.org/2000/svg"><path fill="none" d="M0 0h24v24H0z"></path><path d="M11.07 12.85c.77-1.39 2.25-2.21 3.11-3.44.91-1.29.4-3.7-2.18-3.7-1.69 0-2.52 1.28-2.87 2.34L6.54 6.96C7.25 4.83 9.18 3 11.99 3c2.35 0 3.96 1.07 4.78 2.41.7 1.15 1.11 3.3.03 4.9-1.2 1.77-2.35 2.31-2.97 3.45-.25.46-.35.76-.35 2.24h-2.89c-.01-.78-.13-2.05.48-3.15zM14 20c0 1.1-.9 2-2 2s-2-.9-2-2 .9-2 2-2 2 .9 2 2z"></path></svg>

public/icons/Decorator.svg

@@ -1 +1 @@
-<svg stroke="currentColor" stroke-width="0" viewBox="0 0 16 16" height="1em" width="1em" xmlns="http://www.w3.org/2000/svg" style="width:12px;height:12px" color="#fff"><path d="M2.273 9.53a2.273 2.273 0 100-4.546 2.273 2.273 0 000 4.547zm9.467-4.984a2.273 2.273 0 100-4.546 2.273 2.273 0 000 4.546M7.4 13.108a5.54 5.54 0 01-3.775-2.88 3.27 3.27 0 01-1.944.24 7.4 7.4 0 005.328 4.465c.53.113 1.072.169 1.614.166a3.25 3.25 0 01-.666-1.9 6 6 0 01-.557-.091m3.828 2.285a2.273 2.273 0 100-4.546 2.273 2.273 0 000 4.546m3.163-3.108a7.44 7.44 0 00.373-8.726 3.3 3.3 0 01-1.278 1.498 5.57 5.57 0 01-.183 5.535 3.26 3.26 0 011.088 1.693M2.098 3.998a3.3 3.3 0 011.897.486 5.54 5.54 0 014.464-2.388c.037-.67.277-1.313.69-1.843a7.47 7.47 0 00-7.051 3.745" stroke="none"/></svg>
+<svg stroke="currentColor" fill="currentColor" stroke-width="0" viewBox="0 0 512 512" height="1em" width="1em" xmlns="http://www.w3.org/2000/svg"><path fill="none" stroke-linecap="round" stroke-linejoin="round" stroke-width="48" d="M200.66 352H144a96 96 0 0 1 0-192h55.41m113.18 0H368a96 96 0 0 1 0 192h-56.66m-142.27-96h175.86"></path></svg>

public/icons/Error.svg

@@ -1,10 +1 @@
-<?xml version="1.0" ?>
-<svg height="512" viewBox="0 0 512 512" width="512" xmlns="http://www.w3.org/2000/svg">
-    <title />
-    <path
-        d="M85.57,446.25H426.43a32,32,0,0,0,28.17-47.17L284.18,82.58c-12.09-22.44-44.27-22.44-56.36,0L57.4,399.08A32,32,0,0,0,85.57,446.25Z"
-        style="fill:none;stroke:#000;stroke-linecap:round;stroke-linejoin:round;stroke-width:32px" />
-    <path d="M250.26,195.39l5.74,122,5.73-121.95a5.74,5.74,0,0,0-5.79-6h0A5.74,5.74,0,0,0,250.26,195.39Z"
-        style="fill:none;stroke:#000;stroke-linecap:round;stroke-linejoin:round;stroke-width:32px" />
-    <path d="M256,397.25a20,20,0,1,1,20-20A20,20,0,0,1,256,397.25Z" />
-</svg>
+<svg stroke="currentColor" fill="currentColor" stroke-width="0" viewBox="0 0 16 16" height="1em" width="1em" xmlns="http://www.w3.org/2000/svg"><path d="M7.938 2.016A.13.13 0 0 1 8.002 2a.13.13 0 0 1 .063.016.15.15 0 0 1 .054.057l6.857 11.667c.036.06.035.124.002.183a.2.2 0 0 1-.054.06.1.1 0 0 1-.066.017H1.146a.1.1 0 0 1-.066-.017.2.2 0 0 1-.054-.06.18.18 0 0 1 .002-.183L7.884 2.073a.15.15 0 0 1 .054-.057m1.044-.45a1.13 1.13 0 0 0-1.96 0L.165 13.233c-.457.778.091 1.767.98 1.767h13.713c.889 0 1.438-.99.98-1.767z"></path><path d="M7.002 12a1 1 0 1 1 2 0 1 1 0 0 1-2 0M7.1 5.995a.905.905 0 1 1 1.8 0l-.35 3.507a.552.552 0 0 1-1.1 0z"></path></svg>