feat(cli): agent read commands (list/get/search/ack) with policy filtering

internal/cli/dispatch.go

@@ -0,0 +1,18 @@
+package cli
+
+import (
+	"encoding/base64"
+	"strconv"
+)
+
+func b64(b []byte) string { return base64.StdEncoding.EncodeToString(b) }
+
+func uitoa(u uint32) string { return strconv.FormatUint(uint64(u), 10) }
+
+func uintSlice(us []uint32) []uint64 {
+	out := make([]uint64, len(us))
+	for i, u := range us {
+		out[i] = uint64(u)
+	}
+	return out
+}