feat: gadfly-reports — findings store + scoreboard daemon

SQLite-backed HTTP store for Gadfly review findings, per-review run timings, and human/Claude grades, with a points-free per-model scoreboard. Pure fact store: it computes no points or rankings (the dashboard maps severity->points client-side and retunes without re-scoring). Findings are content-addressed by location so cross-model reports collapse for consensus; one grade per finding, latest wins. Pure-Go SQLite (CGO-free) + Docker image CI + tests.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

go.mod

@@ -0,0 +1,17 @@
+module gitea.stevedudenhoeffer.com/steve/gadfly-reports
+
+go 1.26
+
+require modernc.org/sqlite v1.53.0
+
+require (
+	github.com/dustin/go-humanize v1.0.1 // indirect
+	github.com/google/uuid v1.6.0 // indirect
+	github.com/mattn/go-isatty v0.0.20 // indirect
+	github.com/ncruces/go-strftime v1.0.0 // indirect
+	github.com/remyoudompheng/bigfft v0.0.0-20230129092748-24d4a6f8daec // indirect
+	golang.org/x/sys v0.44.0 // indirect
+	modernc.org/libc v1.73.4 // indirect
+	modernc.org/mathutil v1.7.1 // indirect
+	modernc.org/memory v1.11.0 // indirect
+)