convert-flat-process-notes-to-dir

To convert a flat process-notes.md file into a structured folder format, run the migration script to split the file by ## headings, extract dates, and store entries as individual markdown files inside a process-notes/ directory.

Your process notes skill refuses to write because it detects a legacy flat process-notes.md format instead of the expected per-entry folder structure, requiring migration to the new directory format before writing can proceed.

During process notes migration, dated entries extracted from headings are stored as process-notes/YYYY-MM-DDTHHMM-slug.md files, while undated entries are stored as process-notes/NNNN-slug.md files to preserve their original order.

After migrating to a folder structure, the original process-notes.md file is safely renamed to process-notes.md.archive, preserving the legacy content as a backup while the new per-entry directory takes over.

No external dependencies are required to split process notes into individual files, as the conversion is handled entirely by a standalone Python script that parses headings and manages the file structure output.

Yes, you can verify the results of converting a flat process notes file because the script outputs a detailed conversion summary that validates the newly created per-entry markdown files and archived original.