v1.2.0

[1.2.0] — 2026-07-29

Sharing and multi-mount release. Schema: 18.

Added

• Shared with me: shares others sent you are listed, verified and mountable, including on
  the primary mount.
  They appear under a synthetic Shared with me directory on a virtual volume
  (pdfs-fuse/src/virtual.rs), with name collisions and over-long components resolved by
  its own naming rules.
• Per-share access model (db/share_access.rs): the effective role of each shared root is
  persisted and kept resident in mount state, so interning an inode never costs a query. The
  database stays the restart/offline authority — every role change is written through before
  the cache updates. A share you cannot write is presented POSIX read-only.
• Unified location model (pdfs-core/src/mounts.rs, db/mounts.rs): one presentation shape
  for every local Proton Drive location, joining device sync state with a new mount table.
  MountMode is Mirror (full local copy, reconciled both ways) or OnDemand (FUSE session
  fetching on access), with an Unknown fallback so a mode written by a newer client does
  not break an older one.