* feat(statsreporter): expose collected stats via GET /api/v1/stats
Extract per-org stats collection out of the analytics reporter into an
always-on Aggregator (collector fan-out + telemetry-store counts) shared
by the reporter and a new HTTP handler. The GET /api/v1/stats endpoint
returns the caller's org stats regardless of whether scheduled reporting
is enabled.
* refactor(statsreporter): collect telemetry stats via the querier
Move the trace/log/metric row-count and last-observed queries out of the
stats aggregator and into the querier, which now implements
statsreporter.StatsCollector. The aggregator becomes a pure collector
fan-out and no longer depends on telemetrystore; the querier is wired in
as one of the stats collectors.
* chore: regenerate openapi spec and frontend client
Backend docs/api/openapi.yml gains the GET /api/v1/stats (GetStats)
operation; the Orval client gains a useGetStats hook and GetStats200
type.
* chore: remove comment from querier Collect
* fix(statsreporter): use MustNewUUID for org from claims
Claims come from validated auth context, so the org UUID is guaranteed
valid; drop the dead NewUUID error branch.
* fix(flagger): use MustNewUUID for org from claims
Claims come from validated auth context, so the org UUID is guaranteed
valid; drop the dead NewUUID error branch.
* docs(contributing): note MustNewUUID for IDs from claims
* perf(querier): combine count and last-observed into one query per signal
Each signal's COUNT(*) and max(timestamp) scan the same table, so fetch
both in a single query — 3 queries instead of 6. Same emitted keys and
empty-table guard.
* chore: add discriminator on kind in perses spec
* chore: add discriminator to builder query spec
* chore: update in query builder directly
* docs: add info about discriminator in handler.md
* fix: move back to restrictKindToOneValue
* fix: move back to restrictKindToOneValue
