Fix binary tag value handling for e/p tags across database layer

- Update nostr library to v1.0.3 with improved binary tag support
- Replace tag.Value() calls with tag.ValueHex() to handle both binary and hex formats
- Add NormalizeTagValueForHash() for consistent filter tag normalization
- Update QueryPTagGraph to handle binary-encoded and hex-encoded pubkeys
- Fix tag matching in query-events.go using TagValuesMatchUsingTagMethods
- Add filter_utils.go with tag normalization helper functions
- Update delete operations in process-delete.go and neo4j/delete.go
- Fix ACL follows extraction to use ValueHex() for consistent decoding
- Add binary_tag_filter_test.go for testing tag value normalization
- Bump version to v0.30.3

pkg/database/process-delete.go

@@ -29,13 +29,14 @@ func (d *D) ProcessDelete(ev *event.E, admins [][]byte) (err error) {
 		if eTag.Len() < 2 {
 			continue
 		}
-		eventId := eTag.Value()
-		if len(eventId) != 64 { // hex encoded event ID
+		// Use ValueHex() to handle both binary and hex storage formats
+		eventIdHex := eTag.ValueHex()
+		if len(eventIdHex) != 64 { // hex encoded event ID
 			continue
 		}
 		// Decode hex event ID
 		var eid []byte
-		if eid, err = hexenc.DecAppend(nil, eventId); chk.E(err) {
+		if eid, err = hexenc.DecAppend(nil, eventIdHex); chk.E(err) {
 			continue
 		}
 		// Fetch the event to verify ownership