replace Redis with an embedded SQLite string->string KV store (group commit, in-tx events, SQL search)

internal/schema/classify.go

@@ -21,7 +21,7 @@ import (
 // (crc32: "bafk3eaqerjhiwhy").
 var cidRegex = regexp.MustCompile(`^(ba[a-z2-7]{14,}|Qm[1-9A-HJ-NP-Za-km-z]{44})$`)
 
-// ClassifyValue returns the (primitive, hint) for a Redis value.
+// ClassifyValue returns the (primitive, hint) for a stored value.
 // exists=false (key missing) and JSON null literal both map to PrimUndefined.
 // Empty string is a valid string.
 func ClassifyValue(value string, exists bool) (Primitive, Hint) {