Module journal 

Mutation journal for device-owned replication.

Provides a durable, contiguous, append-only journal that wraps existing semantic-memory mutation paths. Each journal entry records:

• device/store identity
• monotonic sequence number
• operation kind (add_fact, add_message, etc.)
• canonical payload for replication

The journal is committed atomically with the semantic mutation in the same SQLite transaction. Export and replay operations provide the foundation for device-primary → server-replica synchronization.

Structs

ExportedBatch

A batch of journal entries ready for replication.

JournalEntry

A single journal entry representing one semantic mutation.

Enums

ReplayOutcome

Outcome of replaying a journal entry.

Constants

MIGRATION_V37

V37 migration: mutation journal for device-owned replication.

Functions

append_journal_entry

Append a journal entry within an active transaction.

export_contiguous

Export a contiguous range of journal entries.

mutate_and_journal

Execute a mutation closure within a transaction that also journals it.

next_expected_sequence

Get the next expected sequence number for a device/store pair.

replay_journal_entry

Apply a single journal entry on a replica store.