HAIKU_RAG_DB and DB_PATH are gone: a capability covers what the
configuration places or the db_path it is given, and the app backend and
the AG-UI example load their configuration as the CLI does. The compose
files point HAIKU_RAG_CONFIG_PATH at the mounted haiku.rag.yaml, which
places the database at /data where DB_VOLUME is mounted; the backend
refuses a configured set since it serves one database. The chat scopes a
selection by source only over a set and names databases on filter rows
only across several. Docstrings, docs and test fixtures stop describing an
unnamed database; every database a search, listing or citation reports
carries a name.
`_rich_print_document` escapes uri, title and metadata, the sibling of
the escaped search-result renderer. The remaining comments and
docstrings that narrated rejected alternatives, consequences or history
now state the current invariant. The Sandbox class docstring names the
held connection close() releases, and wrapped docs paragraphs join to
one line.
Comments and docstrings across the branch narrated rejected
alternatives, consequences and history; each now states the current
contract. Renames test_a_legacy_uri_client_keeps_its_error to
test_an_unnamed_database_keeps_its_error. Documents the Sandbox
connection paths, the citation header's database segment, both
AmbiguousDatabaseError conditions on create_app, and run_inspector's
scope parameter. Doc paragraphs added by the branch in python.md,
storage.md and cli.md are one physical line each.
`_resolve_scope` returned a scope without keeping it, so a client re-entered
after its configuration was edited covered whatever the configuration then said.
Resolving once is what the rest of the design rests on: the scope is what names
results, citations and errors.
A configuration is still free to change before first entry.
`asyncio.gather` propagates the first failure while its siblings run on, and the
caller unwinding from that closes the set through `async with` — so a sibling
still reading reads through a closed session. Seven fan-outs were affected:
lookup, search, image enrichment, multimodal picture loading, context expansion,
document listing and counting, and the sandbox's document load.
`gather_all` cancels and drains the rest, then re-raises the original exception.
A `TaskGroup` would drain them too but raise an `ExceptionGroup`, which every
caller and both CLIs' exception handlers would have to unwrap. The two
`return_exceptions=True` gathers in session opening and teardown already drain
their children and are left alone.
`close()` refused a client covering a set, which left one with no method to
call: `async with` was the only lifecycle it had. `aclose()` runs that teardown
for a caller that owns the client some other way, whatever it covers, and
nothing to release is not an error, so it is safe before entering and after
closing.
`close()` stays what it is, one connection and nothing else, and says so:
draining the background vacuum and releasing the embedder and reranker are
awaitable.
Every client covering a database built its own, so a set of five loaded the same
local model weights five times over, beside the federator's. A client covering a
database for another borrows that one's, and only its owner closes it.
A URI-backed database is constructed with a local `db_path` nothing connects
to, and the info modal reported that, so `--db-name` on an S3 database named a
local directory. `location` reads the configuration instead, and the modal
labels it as one.
`InfoModal`'s `db_path` argument is gone: both callers passed None, so only a
test reached the branch that used it.
`sessions_for` recorded what opened from `gather`'s results, which arrive only
when it runs to completion. Cancelling it discarded them, so a database that
opened while a sibling was still pending was never recorded and `aclose` never
closed it. `return_exceptions=True` covers a failing child, not a cancelled
parent.
`_open` now registers its own session, so what opened is reachable however the
fan-out ends.
Two files of 1,405 and 814 lines become seven: scope resolution, lifecycle,
search, documents, expansion, citations and capabilities. `_config`, `_seed`
and the rest move to `helpers.py`, importable by the sandbox tests that share
them, and the package points VCR back at `tests/cassettes/multi_db/`.
