An aggregate row carries no certname, so the per-certname merge collapsed
every backend's row into one bucket and served a single backend's count as
the estate's — no error, no warning, X-Backends still 2/2.
- Route an aggregate query on /facts/<name>[/<value>] to the summing path.
- List the injected fact's name in /fact-names instead of hiding it.
- Reject an order_by on any field but name, as the backends do.
Every merge rule, AST gate and provenance decision was derived from reading
upstream source and proven only against fake backends, so nothing had ever run
against a real PuppetDB.
- Add an e2e suite behind the `e2e` build tag and a `make e2e` target
- Stand up two openvoxdb backends on their own PostgreSQL with testcontainers
- Load facts, reports and catalogs over the command API, waiting on processing
- Assert the union, freshness dedupe, summed aggregates, provenance gating,
X-Backends, backend death and recovery, and the report paths
- Drive Puppetboard and node-lookup against pdbmux as real clients
- Record three known gaps as skips that fail once the gap closes