feat(migrate): configure embedded Goose providers

Use provider-local SQL and Go migrations, injected slog logging, and PostgreSQL session locking. Exercise timestamp migration flows and failures with SQLite and PostgreSQL, including concurrent startup, and require PostgreSQL integration coverage in CI.

Refs #7

go.mod

@@ -3,6 +3,29 @@ module go.auvem.com/corestack
 go 1.27.1
 
 require (
+	github.com/jackc/pgx/v5 v5.11.0
+	github.com/pressly/goose/v3 v3.29.0
 	github.com/yuin/goldmark v1.8.6
 	go.yaml.in/yaml/v3 v3.0.5
+	modernc.org/sqlite v1.60.1
+)
+
+require (
+	github.com/dustin/go-humanize v1.1.0 // indirect
+	github.com/google/uuid v1.6.0 // indirect
+	github.com/jackc/pgpassfile v1.0.0 // indirect
+	github.com/jackc/pgservicefile v0.0.0-20240606120523-5a60cdf6a761 // indirect
+	github.com/jackc/puddle/v2 v2.2.3 // indirect
+	github.com/mattn/go-isatty v0.0.24 // indirect
+	github.com/mfridman/interpolate v0.0.2 // indirect
+	github.com/ncruces/go-strftime v1.1.0 // indirect
+	github.com/remyoudompheng/bigfft v0.0.0-20230129092748-24d4a6f8daec // indirect
+	github.com/sethvargo/go-retry v0.5.0 // indirect
+	go.uber.org/multierr v1.11.0 // indirect
+	golang.org/x/sync v0.24.0 // indirect
+	golang.org/x/sys v0.49.0 // indirect
+	golang.org/x/text v0.43.0 // indirect
+	modernc.org/libc v1.78.0 // indirect
+	modernc.org/mathutil v1.7.1 // indirect
+	modernc.org/memory v1.12.1 // indirect
 )