fix: restore custom vote icons

scss/westgate/_posts.scss

@@ -148,15 +148,9 @@ li[component="post"] [component="post/upvote"] {
 	position: relative;
 
 	i.fa-chevron-up {
-		display: none !important;
+		// Font Awesome 7: fa-heart
-	}
+		--fa: "\f004";
-
-	&::before {
-		content: "\f004";
-		font-family: "Font Awesome 6 Free";
 		font-size: 0.95rem;
-		font-weight: 900;
-		line-height: 1;
 		color: var(--bs-primary);
 	}
 
@@ -174,7 +168,7 @@ li[component="post"] [component="post/upvote"] {
 		}
 	}
 
-	&.upvoted::before {
+	&.upvoted i.fa-chevron-up {
 		color: #d47a87;
 	}
 }
@@ -183,15 +177,9 @@ li[component="post"] [component="post/downvote"] {
 	position: relative;
 
 	i.fa-chevron-down {
-		display: none !important;
+		// Font Awesome 7: fa-heart-crack (fa-heart-broken alias)
-	}
+		--fa: "\f7a9";
-
-	&::before {
-		content: "\f7a9";
-		font-family: "Font Awesome 6 Free";
 		font-size: 0.92rem;
-		font-weight: 900;
-		line-height: 1;
 		color: rgba(194, 163, 90, 0.82);
 	}
 
@@ -209,7 +197,7 @@ li[component="post"] [component="post/downvote"] {
 		}
 	}
 
-	&.downvoted::before {
+	&.downvoted i.fa-chevron-down {
 		color: #b86a78;
 	}
 }

tests/post-vote-icons.test.js

@@ -0,0 +1,31 @@
+const assert = require("assert");
+const fs = require("fs");
+const path = require("path");
+
+const stylesheet = fs.readFileSync(
+	path.join(__dirname, "..", "scss", "westgate", "_posts.scss"),
+	"utf8"
+);
+
+assert(
+	!stylesheet.includes("Font Awesome 6 Free"),
+	"Post vote icons must not hard-code the retired Font Awesome 6 family"
+);
+
+assert.match(
+	stylesheet,
+	/i\.fa-chevron-up\s*\{[^}]*--fa:\s*"\\f004"/s,
+	"The upvote button should reuse Harmony's Font Awesome element with the fa-heart glyph"
+);
+
+assert.match(
+	stylesheet,
+	/i\.fa-chevron-down\s*\{[^}]*--fa:\s*"\\f7a9"/s,
+	"The downvote button should reuse Harmony's Font Awesome element with the fa-heart-crack glyph"
+);
+
+assert.doesNotMatch(
+	stylesheet,
+	/\[component="post\/(?:upvote|downvote)"\][\s\S]*?&::before\s*\{/,
+	"Vote icons should not bypass Font Awesome's element and family handling with custom pseudo-elements"
+);