harvest-noteslisted

Run the Obsidian collector against unprocessed daily notes: ``` python3 studio/collectors/obsidian_collector.py ``` If the user passes `--all`, add that flag to reprocess all notes. If the user passes `--dry-run`, add that flag to preview without writing. After running, report: - How many spec stubs were created and their names - How many ideas were filed and to which topic files - Any duplicates skipped If new spec stubs were created, list them and ask if the user wants to open any for editing.