fix(cli-run): rely on continuation markers for completion

Use hook-written continuation marker state to gate run completion checks and remove the noisy event-stream shutdown timeout log in run mode.

src/cli/run/tool-input-preview.ts

@@ -0,0 +1,38 @@
+import pc from "picocolors"
+
+const SINGLE_VALUE_FIELDS = ["command", "filePath"] as const
+
+const MULTI_VALUE_FIELDS = [
+  "description",
+  "pattern",
+  "query",
+  "url",
+  "category",
+  "subagent_type",
+  "lang",
+  "run_in_background",
+] as const
+
+export function formatToolInputPreview(input: Record<string, unknown>): string {
+  for (const key of SINGLE_VALUE_FIELDS) {
+    if (!input[key]) continue
+    const maxLen = key === "command" ? 80 : 120
+    return ` ${pc.dim(String(input[key]).slice(0, maxLen))}`
+  }
+
+  const parts: string[] = []
+  let totalLen = 0
+
+  for (const key of MULTI_VALUE_FIELDS) {
+    const val = input[key]
+    if (val === undefined || val === null) continue
+    const str = String(val)
+    const truncated = str.length > 50 ? str.slice(0, 47) + "..." : str
+    const entry = `${key}=${truncated}`
+    if (totalLen + entry.length > 120) break
+    parts.push(entry)
+    totalLen += entry.length + 1
+  }
+
+  return parts.length > 0 ? ` ${pc.dim(parts.join(" "))}` : ""
+}