Add branding, license, and firmware table improvements

- Add mchus.pro branding to header and footer
- Add author info and git repository link
- Add proprietary license (Mike Chus)
- Firmware table: replace count column with separate component/model columns
- Add branding to TXT export reports

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

internal/exporter/exporter.go

@@ -112,8 +112,8 @@ func (e *Exporter) ExportJSON(w io.Writer) error {
 
 // ExportTXT exports a human-readable text report
 func (e *Exporter) ExportTXT(w io.Writer) error {
-	fmt.Fprintln(w, "LOGPile Analysis Report")
-	fmt.Fprintln(w, "========================")
+	fmt.Fprintln(w, "LOGPile Analysis Report - mchus.pro")
+	fmt.Fprintln(w, "====================================")
 	fmt.Fprintln(w)
 
 	if e.result == nil {
@@ -254,5 +254,11 @@ func (e *Exporter) ExportTXT(w io.Writer) error {
 	fmt.Fprintf(w, "  Warning:  %d\n", warning)
 	fmt.Fprintf(w, "  Info:     %d\n", info)
 
+	// Footer
+	fmt.Fprintln(w)
+	fmt.Fprintln(w, "------------------------------------")
+	fmt.Fprintln(w, "Generated by LOGPile - mchus.pro")
+	fmt.Fprintln(w, "https://git.mchus.pro/mchus/logpile")
+
 	return nil
 }