Allow effect values at 0.1 precision

client/public/version.js

@@ -1,5 +1,5 @@
 // Maintainer-controlled web client version.
 // Format: YYYY.MM.DD Rn (example: 2026.02.20 R2)
-window.CHGRID_WEB_VERSION = "2026.02.21 R86";
+window.CHGRID_WEB_VERSION = "2026.02.21 R87";
 // Optional display timezone for timestamps. Falls back to America/Detroit if unset/invalid.
 window.CHGRID_TIME_ZONE = "America/Detroit";

client/src/audio/effects.ts

@@ -21,7 +21,7 @@ export type EffectRuntime = {
 
 export function clampEffectLevel(value: number): number {
   const clamped = Math.max(0, Math.min(100, value));
-  return Math.round(clamped / 5) * 5;
+  return Math.round(clamped * 10) / 10;
 }
 
 export function disconnectEffectRuntime(runtime: EffectRuntime | null): void {

client/src/main.ts

@@ -1831,8 +1831,8 @@ function handleItemPropertyEditModeInput(code: string, key: string): void {
       signaling.send({ type: 'item_update', itemId, params: { effect: normalized } });
     } else if (propertyKey === 'effectValue') {
       const parsed = Number(value);
-      if (!Number.isInteger(parsed) || parsed < 0 || parsed > 100) {
-        updateStatus('effectValue must be an integer between 0 and 100.');
+      if (!Number.isFinite(parsed) || parsed < 0 || parsed > 100) {
+        updateStatus('effectValue must be a number between 0 and 100.');
         audio.sfxUiCancel();
         return;
       }