Bun Spawn -> node child process in tools and seed versioning

seed/tasks/convert-to-mp3/TASK.md

@@ -1,7 +1,7 @@
 ---
 name: Convert To MP3
 description: Convert audio files to MP3 320kbps, preserving metadata.
-version: 2
+version: 3
 author: pastilhas
 tags:
   - audio
@@ -38,10 +38,13 @@ inputs:
 
 Convert audio files to MP3 320kbps, preserving metadata.
 
+## Important
+
+- Do NOT explore, list, or inspect the target path before converting. The tool handles everything internally — file discovery, format detection, and error reporting.
+- Do NOT use bash, ls, or any other tool. Only use `convert_audio_to_mp3`.
+- Call the tool exactly once, then report the result. Nothing else.
+
 ## Steps
 
-1. Determine whether `file_path` points to a single audio file or a directory.
-2. Call `convert_audio_to_mp3` with the appropriate mode:
-   - Single file: `mode="single"`, `path=file_path`
-   - Directory: `mode="batch"`, `path=file_path`
-3. Report the result to the user.
+1. If `file_path` has an audio extension (flac, wav, ogg, etc.), call `convert_audio_to_mp3(mode="single", path=file_path)`. Otherwise call `convert_audio_to_mp3(mode="batch", path=file_path)`.
+2. Print the tool's output as the final report. Do not add extra commentary.