SettingsManager persistence semantics changed for SDK consumers. Setters now update in-memory state immediately and queue disk writes. Code that requires durable on-disk settings must call await settingsManager.flush().
AuthStorage constructor is no longer public. Use static factories (AuthStorage.create(...), AuthStorage.fromStorage(...), AuthStorage.inMemory(...)). This breaks code that used new AuthStorage(...) directly.
Added
Added SettingsManager.drainErrors() for caller-controlled settings I/O error handling without manager-side console output.
Added auth storage backends (FileAuthStorageBackend, InMemoryAuthStorageBackend) and AuthStorage.fromStorage(...) for storage-first auth persistence wiring.
Added Anthropic claude-sonnet-4-6 model fallback entry to generated model definitions.
Changed
SettingsManager now uses scoped storage abstraction with per-scope locked read/merge/write persistence for global and project settings.
Fixed
Fixed project settings persistence to preserve unrelated external edits via merge-on-write, while still applying in-memory changes for modified keys.
Fixed auth credential persistence to preserve unrelated external edits to auth.json via locked read/merge/write updates.
Fixed auth load/persist error surfacing by buffering errors and exposing them via AuthStorage.drainErrors().