feat: dev-5.1 分支基线（v1.3.35 发版后代码 + 5.1 声道改造文档）

- 以 main(ccc65af) 为基线提交当前工作区代码
- 新增 5.1 声道改造文档两份
- .gitignore 补充 .vscode/、.screenshots/

test/voice_helper/jump_film.sh

@@ -0,0 +1,28 @@
+#!/usr/bin/env bash
+# jump_film.sh - 单片跳转测试
+# 用法: jump_film.sh [filmId] [filmName] [autoPlay]
+#   filmId     默认 film-demo-001
+#   filmName   默认等于 filmId（仅一个参数时避免重复输入）
+#   autoPlay   true / false，默认 true
+
+set -e
+SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
+# shellcheck disable=SC1091
+source "${SCRIPT_DIR}/lib/common.sh"
+
+require_adb
+check_receiver_exists
+
+FILM_ID="${1:-film-demo-001}"
+# 缺省 filmName 时与 filmId 同名，避免用户重复输入
+FILM_NAME="${2:-${FILM_ID}}"
+AUTO_PLAY="${3:-true}"
+
+print_header "单片跳转 JUMP/FILM"
+PAYLOAD=$(build_jump_payload FILM \
+  "filmId=${FILM_ID}" \
+  "filmName=${FILM_NAME}" \
+  "autoPlay=${AUTO_PLAY}")
+
+send_voice_broadcast "JUMP" "${PAYLOAD}"
+log_ok "预期进入 VideoDetailActivity（autoPlay=${AUTO_PLAY}）"