Completed transcript entries now write through to the OS page cache on
append instead of microtask-batching, supersede in-flight atomic rewrites
with a synchronous full-body publish, and land on the live moveTo path
(source pre-rename, destination post-rename) so a software crash no longer
drops finished user/assistant/tool events. Streaming text remains durable
only at message_end; no fsync/power-loss guarantee is claimed.
The move fence bumped #diskEpoch, which no-oped any disk task already queued at the prior epoch (e.g. a header-only ensureOnDisk materializing rewrite), losing explicitly materialized ACP/draft sessions. Gate the append hot path on #sessionFileRelocating instead of a fresh epoch, so prior disk work still drains.
Fixes#7270
A fenced append followed by a Ctrl+C flushSync in the post-rename, pre-repoint window rewrote the full body to the old path, recreating the orphan. Sync rewrites now defer while the session file is relocating.
Fixes#7270
- Added session-domain modules and exports for session-entries, context, listing, loader, and migrations.
- Changed persistence to async append writes plus writeTextAtomic, removing sync line APIs.
- Added compaction-aware session context rebuild with dangling tool-call cleanup.
- Added resumable session resolution with status inference, id/stem/suffix matching, and backup recovery.
- Standardized missing-file read errors and now return `File not found: <path>` for absent edit targets.
- Centralized AI provider, usage, and OAuth helpers into shared modules to remove duplicated logic.
- Migrated OAuth/API-key login flows to shared factory helpers and removed inline prompt/token-exchange code.
- Reused shared tools and formatter utilities for discovery, stream tails, LSP batching, and source formatting.
- Consolidated repeated test helpers and fixtures into shared modules, replacing inline helper duplicates.
- Made sessionDir parameter optional in SessionManager.create(), forkFrom(), continueRecent(), and list() methods with automatic default computation.
- Updated SessionManager.getDefaultSessionDir() to accept optional agentDir parameter for custom sessions root configuration.
- Changed SessionManager.list() signature to require cwd parameter as first argument with sessionDir now optional.
- Implemented multi-root session migration support by replacing global migration state with per-root tracking and extracting session directory encoding logic.
- Added resolveManagedSessionRoot() function to determine if session directory is managed and extract its root.
Two /move bugs on Windows:
1. Quoted absolute paths (e.g. /move "C:\...") were treated as relative
because surrounding quotes weren't stripped before path.isAbsolute().
2. /move before any model response threw ENOENT because the session
.jsonl file hadn't been created on disk yet (lazy-persist).
Changes:
- Extract stripOuterDoubleQuotes() helper in path-utils.ts, use in
handleMoveCommand() with empty-after-strip guard
- Guard session file rename with existsSync in moveTo(), leaving
artifact dir rename independently guarded
- Guard #rewriteFile() with hadSessionFile || hasAssistant to preserve
lazy-persist while still updating header cwd for existing files
- Add comprehensive test suite (13 tests) covering all moveTo() edge
cases including header-only sessions, deferred persistence, and
artifact migration
can1357