migrate to multiple sqlite db files ( primary + requests + logs )

scnserver/db/impl/primary/context.go

@@ -0,0 +1,16 @@
+package primary
+
+import (
+	"blackforestbytes.com/simplecloudnotifier/db"
+	"gogs.mikescher.com/BlackForestBytes/goext/sq"
+	"time"
+)
+
+type TxContext interface {
+	Deadline() (deadline time.Time, ok bool)
+	Done() <-chan struct{}
+	Err() error
+	Value(key any) any
+
+	GetOrCreateTransaction(db db.DatabaseImpl) (sq.Tx, error)
+}