R2: load-test harness + contour resource observability

New scrabble/loadtest module (the pre-release stress harness): seeds 1000 guest + 10000 durable accounts with pre-created sessions directly in Postgres (token hash matches backend/internal/session), drives virtual players through the edge protocol (real 2-4p games assembled via invitations, mid-ranked legal moves generated locally by the embedded scrabble-solver — the edge carries no board, so the client replays history), plus nudge/chat/check-word/draft/profile/stats and a gateway-hammer that verifies the rate limiter. Prints a trip-report summary (per-op latency percentiles, result codes, live-event tally). Go unit tests cover the pure pieces; the DAWG-backed move test runs under BACKEND_DICT_DIR. Contour: add cAdvisor + postgres_exporter + a 'Scrabble - Resources' Grafana dashboard and the two Prometheus scrape jobs, for the R2/R7 stress-run resource baseline. CI: gate ./loadtest/... (path filter + vet/build/test). Docs: TESTING, ARCHITECTURE, project CLAUDE repo layout.
2026-06-09 23:45:24 +02:00
parent bf3ee62711
commit aa137e3558
27 changed files with 2554 additions and 7 deletions
@@ -4,6 +4,7 @@ use ./backend

 use (
 	./gateway
+	./loadtest
 	./pkg
 	./platform/telegram
 )
@@ -19,3 +20,8 @@ use (
 // like scrabble-solver it cannot be fetched as a versioned dependency; the
 // replace points the v0.0.0 require at the in-repo module directory.
 replace scrabble/pkg v0.0.0 => ./pkg
+
+// scrabble/gateway is required by the loadtest harness for the generated edge
+// Connect client and proto envelope (gateway/proto/edge). Same dot-free reason as
+// scrabble/pkg — the replace points its v0.0.0 require at the in-repo directory.
+replace scrabble/gateway v0.0.0 => ./gateway