Update homepage to reflect all supported AI agents and file artifacts

Enhance the EmptyState hero section to prominently highlight support for Claude, GitHub Copilot, and Cursor. Update the file/artifact listing to use broader categories (rules files, skills, linked documentation) instead of enumerating specific filenames, more accurately representing the full scope of detectable artifacts including .claude/rules, .cursor/rules, SKILL.md files across all locations, and referenced documentation.

Add hero-tagline-emphasis CSS class with gradient styling to visually highlight the supported agents.

Co-Authored-By: Claude Haiku 4.5 <noreply@anthropic.com>
Entire-Checkpoint: 17252607bde7

Author: cteyton

frontend/src/components/EmptyState.tsx

@@ -24,13 +24,14 @@ export const EmptyState: React.FC = () => {
 
 				{/* Tagline */}
 				<p className="hero-tagline mb-4">
-					Evaluate and automatically fix your AI agent documentation —
-					AGENTS.md, CLAUDE.md, copilot-instructions.md, SKILL.md, and
-					referenced files
+					Evaluate and automatically fix your AI agent documentation for{" "}
+					<span className="hero-tagline-emphasis">
+						Claude, GitHub Copilot, and Cursor
+					</span>
 				</p>
 
 				<p className="text-sm text-slate-500 mb-4">
-					Paste a Git repository URL below to analyze{" "}
+					Analyze{" "}
 					<code className="px-2 py-0.5 bg-slate-800 border border-slate-700 rounded text-xs font-mono text-slate-300">
 						AGENTS.md
 					</code>
@@ -42,11 +43,7 @@ export const EmptyState: React.FC = () => {
 					<code className="px-2 py-0.5 bg-slate-800 border border-slate-700 rounded text-xs font-mono text-slate-300">
 						copilot-instructions.md
 					</code>
-					,{" "}
-					<code className="px-2 py-0.5 bg-slate-800 border border-slate-700 rounded text-xs font-mono text-slate-300">
-						SKILL.md
-					</code>
-					, and referenced documentation files
+					, rules files, skills, and linked documentation
 				</p>
 
 				<p className="text-xs text-slate-500 mt-2">

frontend/src/styles.css

@@ -1157,6 +1157,14 @@
 		animation: fadeIn 0.6s ease-out 0.2s both;
 	}
 
+	.hero-tagline-emphasis {
+		background: linear-gradient(135deg, #60a5fa 0%, #a78bfa 50%, #60a5fa 100%);
+		background-clip: text;
+		-webkit-background-clip: text;
+		-webkit-text-fill-color: transparent;
+		font-weight: 600;
+	}
+
 	/* ============================================
      SKELETON LOADERS
      ============================================ */