feat(crash): meow_crash 系统级崩溃捕获 (agent-187) — svcd 服务异常退出上报(AF_UNIX best-effort,不崩svcd)+dmesg增量扫segfault/oops; 落盘 TF MeowOS/logs/crash_<bootts>.log 无卡回退/tmp+迁移; CLI dump/tail; S89 预置 crash.conf(主会话补)

meow_crash 62781084; meow_svcd da6ebc66→605646c4(仅+68行上报挂点); 宿主5场景全过(上报链路/dmesg增量/无卡迁移/铁律验证/CLI)

patch_v2/meow_svcd/S89meow_svcd

@@ -94,6 +94,22 @@ EOF
             chmod 644 /usr/data/meow/services.d/meow_svc_power.conf
             echo -n "provisioned power.conf "
         fi
+        if [ -f /usr/data/meow/services.d/meow_crash.conf ]; then
+            echo -n "crash.conf exists "
+        else
+            cat > /usr/data/meow/services.d/meow_crash.conf <<'EOF'
+exec=/usr/bin/meow_crash
+args=
+enabled=1
+restart=on-fail
+backoff_ms=2000
+max_restart=5
+trigger=boot
+cap=
+EOF
+            chmod 644 /usr/data/meow/services.d/meow_crash.conf
+            echo -n "provisioned crash.conf "
+        fi
     else
         echo -n "skip svc confs (/usr/data/meow not writable) "
     fi