docs: kb/CONTRACT.md points an external article raw_files under raw/, a raw fetch capture names both files (#120)

Files changed:
- CHANGES.md
- VERSION
- instructions/wiki-ingest/SKILL.md
- kb/CONTRACT.md

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01SnAJ7Z3CpVD3PRbN73QtU2

kb/CONTRACT.md

@@ -270,7 +270,8 @@ Every claim is either traceable to a raw file or explicitly marked as not.
   unsourced part under a `## General Guidance (unsourced)` heading).
 - **`raw_files:`** on every source page - concrete existing file paths under `raw/`, never a
   directory and never a bare URL. For an external article also set `source_url:`, but
-  `raw_files:` must still point at the local copy under `raw/articles/`.
+  `raw_files:` must still point at the local copy under `raw/` - for a page captured with
+  `raw fetch`, both the received `.html` and the derived `.md`.
 - **One source page may cover many raw files.** A folder of related documents becomes a single
   page listing all of them, not one page per file.
 - **A `[^cite-id]` footnote** appended to any *specific hard fact*: an IP, port, version, path,