The separate master/volume/filer processes in framework.go bound fixed
ports, discarded child output, and never noticed an early process exit,
so a slow or dead volume server burned the whole 30s timeout with no
logs. Switch to the same weed-mini approach the fuse_test package
framework already uses: dynamic filer ports, child output captured to
log files, and readiness waits that bail out the moment the process
dies. The external-mount path (TEST_MOUNT_POINT) is unchanged.
The posix-compliance workflow mounts with -allowOthers, but fusermount
refuses allow_other unless user_allow_other is set in /etc/fuse.conf,
mirroring the fuse-integration workflow FUSE setup.
Chris Lu
7c478fd89a