Replace the single unrestricted-syncer.ts with a two-loop architecture:
- syncer.ts drains the FIFO wire queue (HTTP + WS handlers).
- reconciler.ts moves files to make localPath match remoteRelativePath
(topo-sorted move graph, in-memory cycle resolution with crash-safe
swap markers).
- sync-event-queue.ts holds the byDocId / byLocalPath indexes and the
pending-create promise chain.
- offline-change-detector.ts, expected-fs-events.ts, types.ts, and a
rewritten cursor-tracker.ts / file-change-notifier.ts round it out.
Plus sync-client.ts wiring, tracing/sync-history.ts updates, index.ts
re-exports, and sync-client tsconfig/webpack/package.json.
Rewrite file-operations and safe-filesystem-operations (and their tests),
update filesystem-operations. Drop persistence/database.ts (in-memory
record store moved into sync-event-queue). Update persistence/settings.ts.
Add build-vault-url helper. Rewrite fetch-controller and websocket-manager
(plus their tests). Update server-config and sync-service to consume the
new error types and the regenerated API types from previous chunks.
Move error classes from services/ and file-operations/ into a new errors/
directory (authentication-error, server-version-mismatch-error,
sync-reset-error, file-not-found-error), plus add file-already-exists-error
and http-client-error. Update consts.ts and utils/* (await-all,
create-client-id, hash, rate-limit, find-matching-file). Replace
data-structures (locks, min-covered, event-listeners, fix-sized-cache) and
add debugging utilities (in-memory-file-system, log-to-console,
slow-web-socket-factory). Removes utils/create-promise.ts.
Auto-generated TS types regenerated from Rust ts-rs derives, mirrored into
frontend/sync-client/src/services/types/ and frontend/history-ui/src/lib/types/.
Adds ListVaultsResponse, VaultHistoryResponse, VaultInfo and updates several
existing types; removes DeleteDocumentVersion and UpdateDocumentVersion.
src/app_state.rs, src/app_state/database.rs (large schema/query rewrite),
two new migrations (add_idempotency_key, add_creation_vault_update_id),
and src/app_state/database/models.rs.
