Create a point-in-time Cyd Bluesky archive v2 export

[micahflee]

Note

In this issue, “version 2” and “v2 archive” mean version 2 of the Cyd Bluesky archive contract. Cyd archive formats and version histories are platform-specific; this issue does not define version 2 for X, Facebook, Mastodon, or any other platform.

Parent

#91

What to build

Export a consistent, self-contained Cyd Bluesky archive v2 account snapshot by briefly pausing account-mutating work, staging a SQLite snapshot and transactional media inventory, then translating Mobile storage into the canonical interchange format.

Acceptance criteria

• The staged database and media inventory represent one point in time even if live account work continues during later packaging.
• Every canonical record, relationship, context snapshot, portable setting, deletion state, and completeness state is translated without exposing Mobile private schema.
• Each referenced content-addressed asset is packaged once.
• Assets missing or changed during staging are represented honestly as unavailable rather than silently omitted.
• Writer work remains disabled until Preserve full Bluesky images and videos for offline browsing #90 provides complete local preservation of full-size images and full video.

Blocked by

• Restore a complete Bluesky local account for offline browsing #96
• Preserve full Bluesky images and videos for offline browsing #90

(This was written by an LLM.)