Make the shared client a superset of what todo's and diet_guard-app's local
GitHubClient copies provide, so every app can drop its copy and sync through
one client. canAccessRepo() is a lightweight connection test (bare repo GET,
never throws); deleteFile() resolves the file's own sha and no-ops when
absent. Mirrored on the Dart and Python sides. 90 Dart + 78 Python tests, 100%.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_019KwUCPESvE5CjCtmUFz8xQ
crdt_sync_dart: new domain-agnostic LogStore -- an in-memory Log with a
reactive changes stream and upsert/delete(sticky tombstone)/replaceAll,
behind an injectable LogPersistence port -- plus logToJson/logFromJson.
FileLogPersistence (atomic temp-file-then-rename, generalizing diet_guard's
LogStorageService) lives behind a separate crdt_sync_io.dart entrypoint so
the core barrel stays pure Dart / web-safe.
crdt-sync (Python): mirror dump_log/load_log/read_log/write_log sharing the
same on-disk JSON format so a log written on one side parses on the other.
Load/save only -- the reactive store is a Dart/Flutter convenience with no
Python equivalent by design (Python consumers are headless sync ticks).
Querying stays app-side: a Record's fields are opaque to the library, so
filtering/sorting/search is the caller's job over LogStore.values.
Both packages bumped to 0.2.0. 83 Dart tests + 71 Python tests (100% branch
coverage) green.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_019KwUCPESvE5CjCtmUFz8xQ
Record.toJson() was writing the delete-clock field as deletedHlc while
the Python package's Record.to_dict() writes deleted_hlc -- an
undetected cross-language wire divergence: a tombstoned record synced
Python<->Dart would silently lose its delete clock on the receiving
side. Also widen syncLog's decode error handling from FormatException
alone to also catch TypeError, matching the Python side's
(ValueError, KeyError, TypeError) so a valid-JSON-but-wrong-shape push
from an incompatible writer is skipped per-device instead of aborting
the whole sync. Adds a fixture test shared verbatim with the Python
package's test suite so this class of divergence fails loudly going
forward.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_017McuA1nAi6jBT1EaS5BrVf
Pure-Dart mirror of the Python crdt-sync package, module-for-module and
test-for-test, so the merge algorithm canonically agrees on both sides of
a sync between a Dart client and a Python one. No Flutter SDK dependency
(package:http only) per Workstream D's scoping decision (2026-07-04).
59 tests, clean dart analyze.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_017McuA1nAi6jBT1EaS5BrVf
