feat: M2.1 客户端骨架、BLE 修复、仓库整理与现状板

- BLE: 修复 BlueZ LocalName 与 Includes 冲突，串行注册与退避
- HTTP: 语音对话补 Live2D talking 标志与 session；Web 补 X-Session-Id
- Flutter: 角色/对话/模型页 + API，Gradle/依赖升级，麦克风权限
- 文档: 新增 docs/STATUS.md，校准 CLAUDE/PROGRESS/README
- 清理: 移除根目录截图与临时模型，运维脚本迁入 scripts/device

scripts/device/build.sh

@@ -0,0 +1,7 @@
+#!/bin/bash
+cd /home/showen/Showen/ShowenV2
+export PATH=/home/showen/.rustup/toolchains/stable-aarch64-unknown-linux-gnu/bin:$PATH
+pkill -9 -f showen_v2 2>/dev/null
+sleep 1
+cargo build --release 2>&1 | tail -3
+echo "BUILD_EXIT=$?"