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/neo4j/delete.go

@@ -78,7 +78,8 @@ func (n *N) ProcessDelete(ev *event.E, admins [][]byte) error {
 			continue
 		}
 
-		eventIDStr := string(eTag.T[1])
+		// Use ValueHex() to correctly handle both binary and hex storage formats
+		eventIDStr := string(eTag.ValueHex())
 		eventID, err := hex.Dec(eventIDStr)
 		if err != nil {
 			continue