Mechanical rename of GiError -> LoreError across the core module to
match the project's rebranding from gitlab-inbox to gitlore/lore.
Updates the error enum name, all From impls, and the Result type alias.
Additionally introduces:
- New error variants for embedding pipeline: OllamaUnavailable,
OllamaModelNotFound, EmbeddingFailed, EmbeddingsNotBuilt. Each
includes actionable suggestions (e.g., "ollama serve", "ollama pull
nomic-embed-text") to guide users through recovery.
- New error codes 14-16 for programmatic handling of Ollama failures.
- Savepoint-based migration execution in db.rs: each migration now
runs inside a SQLite SAVEPOINT so a failed migration rolls back
cleanly without corrupting the schema_version tracking. Previously
a partial migration could leave the database in an inconsistent
state.
- core::backoff module: exponential backoff with jitter utility for
retry loops in the embedding pipeline and discussion queues.
- core::project module: helper for resolving project IDs and paths
from the local database, used by the document regenerator and
search filters.
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>