feat(hooks): add PreToolUse hook executor

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src/hooks/claude-code-hooks/tool-input-cache.ts

@@ -0,0 +1,47 @@
+/**
+ * Caches tool_input from PreToolUse for PostToolUse
+ */
+
+interface CacheEntry {
+  toolInput: Record<string, unknown>
+  timestamp: number
+}
+
+const cache = new Map<string, CacheEntry>()
+
+const CACHE_TTL = 60000 // 1 minute
+
+export function cacheToolInput(
+  sessionId: string,
+  toolName: string,
+  invocationId: string,
+  toolInput: Record<string, unknown>
+): void {
+  const key = `${sessionId}:${toolName}:${invocationId}`
+  cache.set(key, { toolInput, timestamp: Date.now() })
+}
+
+export function getToolInput(
+  sessionId: string,
+  toolName: string,
+  invocationId: string
+): Record<string, unknown> | null {
+  const key = `${sessionId}:${toolName}:${invocationId}`
+  const entry = cache.get(key)
+  if (!entry) return null
+
+   cache.delete(key)
+  if (Date.now() - entry.timestamp > CACHE_TTL) return null
+
+  return entry.toolInput
+}
+
+// Periodic cleanup (every minute)
+setInterval(() => {
+  const now = Date.now()
+  for (const [key, entry] of cache.entries()) {
+    if (now - entry.timestamp > CACHE_TTL) {
+      cache.delete(key)
+    }
+  }
+}, CACHE_TTL)