feat(route): meow_route 音频输出路由自动跟随插孔 (agent-220) — svcd托管,1s轮询switch state,4.4优先; 只写变化+读回校验+不重试风暴; 真机已部署运行(svcd tf conf)

meow_route fa2b80be; 主机模拟状态机全过+真机cset/cget往返验证; 物理插拔端到端待用户插耳机实测
注: 223 拼音IME设计稿已出(devdocs/plan/IME_PINYIN_DESIGN.md, 静态表方案~272KB, qemu验证通过)

patch_v2/meow_route/build_route.sh

@@ -0,0 +1,28 @@
+#!/bin/bash
+# build_route.sh — meow_route 交叉编译（mipsel 静态）+ 宿主编译可选。
+#
+# 目标：R3 Pro II / MeowOS（mipsel-linux-muslsf，静态）。仅 POSIX + Linux 基接口，
+# 无 launcher/IPC 依赖（不链 meow_ipc.h），单文件、体积小。
+#
+# 用法：
+#   ./build_route.sh           # 交叉编译 → patch_v2/meow_route/meow_route（mipsel 静态）
+#   ./build_route.sh host      # 宿主编译 → patch_v2/meow_route/meow_route_host
+set -e
+cd "$(dirname "$0")"
+ROOT="$HOME/Project/R3ProII"
+CC="$ROOT/.tools/zig-mipsel-cc"
+
+if [ "$1" = "host" ]; then
+    HOST_CC="${CC_HOST:-cc}"
+    "$HOST_CC" -Os -Wall -Wextra meow_route.c -o meow_route_host
+    echo "== host build =="
+    ls -la meow_route_host
+    file meow_route_host
+    exit 0
+fi
+
+"$CC" -Os -Wall -Wextra -static meow_route.c -o meow_route
+echo "== meow_route (mipsel static) =="
+ls -la meow_route
+md5sum meow_route
+file meow_route