The first phase-11 file op (inline rename) returns EROFS today
because docker-compose mounts ~/Pictures read-only by default.
Lightroom-style file operations (rename, move, discard-pile empty)
all need to mutate the filesystem, so the right default is :rw.
Flips both the backend and worker mounts to :rw with an inline
comment explaining the trade-off, and adds a "Photo directory
mounts and permissions" section to the README that:
- States the default is now :rw
- Explains exactly which endpoints fail under :ro (rename, empty
discard pile, future move/copy)
- Notes the implication: Mulita has full write access to whatever
host directory ends up at /host/Pictures, same trust model as
Lightroom's catalog folder
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
