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/extract.sh

@@ -0,0 +1,15 @@
+#!/bin/bash
+cd /tmp
+echo "=== Extracting SDK ==="
+unzip -o cubism_sdk_native.zip -d cubism_sdk 2>&1 | tail -5
+
+echo "=== Finding Core .so files ==="
+find cubism_sdk -name "libLive2DCubismCore*" -type f 2>/dev/null
+
+echo "=== Checking arm64 linux .so ==="
+ls -lh cubism_sdk/Core/dll/experimental/linux/arm64/ 2>/dev/null
+
+echo "=== File type ==="
+file cubism_sdk/Core/dll/experimental/linux/arm64/libLive2DCubismCore.so 2>/dev/null
+
+echo "=== DONE ==="