docs: raw fetch --html record and kb/CONTRACT.md path budget follow the folder accept (#112)

Files changed:
- CHANGES.md
- VERSION
- kb/CONTRACT.md
- tools/CONTRACT.md
- tools/chemenu/commands/raw_cmd.py

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

kb/CONTRACT.md

@@ -147,7 +147,8 @@ checks is the other half of the same sum.
 
 `wikitool new` (every root), `wikitool rename` (`--to` only, also under `--dry-run`), `wikitool
 move` (a single page, and `--reconcile`, which skips and names such a target) and `wikitool raw
-accept` (the target under `raw/`; the remedy is renaming the file in `incoming/`) refuse a path
+accept` (the target under `raw/`; the remedy is renaming the file in `incoming/` - for a folder,
+a shorter folder name or shorter names inside it) refuse a path
 over the budget before writing anything. `wikitool lint` reports existing files over it as Long
 Paths - advisory, not a hard error, so a corpus that predates the budget still passes
 `--fail-on-error`; the fix is `wikitool rename`.