feat: apply suggestions from code review

Co-authored-by: Paul Boyd <paul@pboyd.io>
Signed-off-by: Alessio Pragliola <83355398+Al-Pragliola@users.noreply.github.com>

Author: Al-Pragliola

catalog/internal/catalog/model_filter.go

@@ -25,7 +25,7 @@ func newCompiledPattern(field string, idx int, raw string) (*compiledPattern, er
 
 	// Convert a simple glob (only supporting '*') into a regexp.
 	var b strings.Builder
-	b.WriteString("^")
+	b.WriteString("(?i)^")
 	for _, r := range value {
 		if r == '*' {
 			b.WriteString(".*")

catalog/internal/catalog/yaml_catalog.go

@@ -364,7 +364,7 @@ func (p *yamlModelProvider) read() (*yamlCatalog, error) {
 func (p *yamlModelProvider) emit(ctx context.Context, catalog *yamlCatalog, out chan<- ModelProviderRecord) {
 	done := ctx.Done()
 	for _, model := range catalog.Models {
-		if p.filter != nil && !p.filter.Allows(model.Name) {
+		if !p.filter.Allows(model.Name) {
 			continue
 		}