1. prepare_installer.sh updates

• Generalizes processing to all .jbeam files in ./examples/jbeam.
• Introduces per-file temporary directories with cleanup via trap.
• Special handling for frame.jbeam to ensure dependent transformations (e.g., fender.jbeam) are applied correctly.
• Simplifies experimental vs stable handling and dynamic diff checking against expected outputs.

2. Haskell module updates (Transformation.hs)

• Exports new helper functions: findAndUpdateTextInNode, updateOtherFiles, filterJbeamFiles.
• transform now returns UpdateNamesMap alongside nodes for downstream updates.
• Adds updateOtherFiles for safely reading, transforming, formatting, and writing .jbeam files.

3. Formatting improvements (Formatting.hs)

• Adds formatNodeAndWrite for writing formatted nodes with OS-specific newline handling.
• Ensures proper conversion from Text to ByteString when writing files.

4. IO utility enhancements (IOUtils.hs)

• Adds helpers isNotEmacsBackupFile and pathEndsWithExtension for file filtering.