Add source editing to ingest

openwiki/workflows/product-workflows.md

@@ -107,18 +107,20 @@ The Sources tab stores non-web material in Marks. Users can:
 
 - import typed/pasted text with an optional title and tags,
 - import PDFs, plain text files, generic text/data files through the document picker,
+- edit source title, tags, and stored body/extracted text,
 - search across source title, body text, tags, and original filename,
 - open imported originals through QuickLook,
 - delete sources and copied files,
 - create or play a podcast from extractable source text.
 
 `IngestedSourceLibrary.load()` reads `Sources/sources.json` from Application Support and indexes sources into Spotlight. Text imports write metadata/body text directly. File imports copy the selected security-scoped file into `Sources/files/`; PDFs extract text with PDFKit, while other files attempt UTF-8/ASCII extraction.
+Editing an imported file source updates Marks' stored extracted text and metadata, but does not modify the copied original file.
 
 Change guidance:
 
 - Empty or image-only PDFs may import with no extractable text; podcast actions are disabled when `podcastText` is empty.
 - Source podcasts use `marks-source://{uuid}` as the cache/index URL and send extracted text plus `source_kind` to the backend.
-- If changing source storage, update deletion, Spotlight removal, QuickLook file lookup, and source podcast cache behavior together.
+- If changing source storage, update editing, deletion, Spotlight removal, QuickLook file lookup, and source podcast cache behavior together.
 
 ## Podcasts