Merge pull request #200 from timkjr/pr/gate-gemini-drop-tunnel-button

fix(welcome): gate CLI welcome buttons on actual availability

src/utils/claude-cli-resolver.ts

@@ -26,6 +26,15 @@ const CLAUDE_SEARCH_DIRS = [
 /** Cached directory containing the claude binary (empty string = searched but not found) */
 let _claudeDir: string | null = null;
 
+/**
+ * Returns true if the Claude CLI binary can be located (via `which` or one of
+ * the common install directories). Mirrors `isGeminiAvailable`/`isOpenCodeAvailable`/
+ * `isCodexAvailable` in the sibling resolvers.
+ */
+export function isClaudeAvailable(): boolean {
+  return findClaudeDir() !== null;
+}
+
 /**
  * Finds the directory containing the `claude` binary.
  * Checks `which claude` first, then falls back to common install locations.