rather large commit, it now handles memory and threading properly.

---

more thorough commit message which was generated by the wonderful copilot AI tool:

Refactor and enhance audio encoding and decoding pipelines

- Introduced CodecUtils.h for utility functions related to audio codec selection, including sample format and bitrate clamping.
- Added DecoderPipeline.h to manage audio decoding, including opening files and retrieving audio stream information.
- Implemented EncoderPipeline.h to handle audio encoding, including encoder setup, resampling, and writing output files.
- Created OutputPathBuilder.h to generate output file paths based on reencode job specifications.
- Refactored SpectrogramWidget to improve OpenGL handling and ensure safe context usage.
- Updated ReencodeDialog.h to enhance code readability and maintainability.
- Improved error handling and logging throughout the audio processing components.

build.sh

@@ -46,6 +46,7 @@ clean_appimage() {
     echo "No AppImage found, aborting"
 }
 
+
 case "${1:-build}" in
     clean|c)
         clean
@@ -65,6 +66,9 @@ case "${1:-build}" in
     cai|clean_appimage|cleanimg)
         clean_appimage
         ;;
+    cbr|clean_build_run)
+        clean_build && run_executable
+        ;;
     *)
         echo "Usage: $0 {build|clean|cleanbuild|cb}"
         exit 1