feat(bt): 批③后台管理页 — bg_page(顶栏'后台'入口+sub_page_t列表[名字/CPU/内存/状态/tap=kill]+一键清除动作行+空态,2s实时)+meow_bgmgr(collect/can_kill !framework门控+kill_all不杀框架)+meow_bg_terminate复用回收序列;amsd FG/BG收编(重编57e19cde含handle_bg/fg);test_bgmgr 20项ALL PASS,0warning

patch_v2/meow_launcherd/build_launcher.sh

@@ -25,9 +25,10 @@ SYSROOT="$ROOT/.tools/mipsel-linux-muslsf-cross/mipsel-linux-muslsf"
 "$CC" -I"../sdk" -Os -static \
     main_menu.c statusbar.c fb_compositor.c settings_page.c power_menu.c \
     notif_center.c app_launcher.c audio.c backlight.c net.c about.c \
-    subpage.c wifi_page.c bt_page.c netmgr_ipc.c now_playing.c \
+    subpage.c wifi_page.c bt_page.c netmgr_ipc.c now_playing.c bg_page.c \
     font_theme.c keys.c util.c meow_dep.c \
     meow_touch.c meow_settings.c meow_notif.c meow_media.c meow_bgplay.c \
+    meow_bgmgr.c \
     meow_ams_start.c lock_screen.c lock_screen_ui.c lock_settings.c \
     "../sdk/meow_lyric.c" "../sdk/meow_lyric_view.c" "../sdk/meow_img_color.c" \
     "../sdk/meow_ui.a" "$SYSROOT/lib/libz.a" -lpthread -o meow_launcherd