chore: initialize recovered claude workspace

src/utils/binaryCheck.ts

@@ -0,0 +1,53 @@
+import { logForDebugging } from './debug.js'
+import { which } from './which.js'
+
+// Session cache to avoid repeated checks
+const binaryCache = new Map<string, boolean>()
+
+/**
+ * Check if a binary/command is installed and available on the system.
+ * Uses 'which' on Unix systems (macOS, Linux, WSL) and 'where' on Windows.
+ *
+ * @param command - The command name to check (e.g., 'gopls', 'rust-analyzer')
+ * @returns Promise<boolean> - true if the command exists, false otherwise
+ */
+export async function isBinaryInstalled(command: string): Promise<boolean> {
+  // Edge case: empty or whitespace-only command
+  if (!command || !command.trim()) {
+    logForDebugging('[binaryCheck] Empty command provided, returning false')
+    return false
+  }
+
+  // Trim the command to handle whitespace
+  const trimmedCommand = command.trim()
+
+  // Check cache first
+  const cached = binaryCache.get(trimmedCommand)
+  if (cached !== undefined) {
+    logForDebugging(
+      `[binaryCheck] Cache hit for '${trimmedCommand}': ${cached}`,
+    )
+    return cached
+  }
+
+  let exists = false
+  if (await which(trimmedCommand).catch(() => null)) {
+    exists = true
+  }
+
+  // Cache the result
+  binaryCache.set(trimmedCommand, exists)
+
+  logForDebugging(
+    `[binaryCheck] Binary '${trimmedCommand}' ${exists ? 'found' : 'not found'}`,
+  )
+
+  return exists
+}
+
+/**
+ * Clear the binary check cache (useful for testing)
+ */
+export function clearBinaryCache(): void {
+  binaryCache.clear()
+}