docs(raw): raw pending no longer offers a PDF and its converted text as a bundle example (#199)

A derived PDF is a folder since raw derive; the raw/CONTRACT.md example was
adapted when the command shipped, the raw pending record and its generated
copies were not.

Files changed:
- CHANGES.md
- VERSION
- docs/reference/commands/raw-material-and-uploads.md
- tools/CONTRACT.md
- tools/chemenu/commands/raw_cmd.py

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

tools/CONTRACT.md

@@ -1668,7 +1668,7 @@ List what waits in `incoming/`, oldest first, and name the entry an ingest witho
 
 **NOTES**
 
-- A candidate is a top-level entry of `incoming/`: a single `file`, a `bundle` of top-level files sharing a stem (a `raw fetch` pair, a PDF and its converted text), or a `folder` with every file below it. Dotfiles, empty directories and their contents are none; `mcp-upload/` is outside `incoming/` and never listed.
+- A candidate is a top-level entry of `incoming/`: a single `file`, a `bundle` of top-level files sharing a stem (a `raw fetch` pair), or a `folder` with every file below it. Dotfiles, empty directories and their contents are none; `mcp-upload/` is outside `incoming/` and never listed.
 - Order: oldest first by modification time. A bundle or folder counts as new as its newest file; a tie goes by name. The mtime is when a document last changed only if it was copied with its timestamps kept (`cp -p`, `rsync -a`, an unpacked archive) - for a download or a `raw fetch` it is merely when it was dropped.
 - Each candidate shows its path(s), kind, file count and mtime, and whether `raw accept` would take it as it stands - the same checks, minus `--fidelity`/`--authority`. One it would refuse is listed with the reason and skipped: it needs a human.
 - The default is the first candidate `raw accept` would take, and the output names it.

tools/chemenu/commands/raw_cmd.py

@@ -1438,8 +1438,7 @@ def _pending_candidates() -> list[_Candidate]:
     """The candidates in `incoming/`, oldest first (Gitea #112 E1/E5).
 
     Only top-level entries count; dotfiles and empty directories are none.
-    Top-level files sharing a stem are one `bundle` - a `raw fetch` pair, a PDF
-    and its converted text. A top-level folder is one `folder`, with every
+    Top-level files sharing a stem are one `bundle` - a `raw fetch` pair. A top-level folder is one `folder`, with every
     file below it. A unit is as new as its newest part, so a bundle or folder
     sorts by the newest mtime it holds; a tie goes by the path's bytes."""
     incoming = _incoming_dir()
@@ -1490,7 +1489,7 @@ def _pending_candidates() -> list[_Candidate]:
     ),
     notes=(
         "A candidate is a top-level entry of `incoming/`: a single `file`, a `bundle` of "
-        "top-level files sharing a stem (a `raw fetch` pair, a PDF and its converted text), or "
+        "top-level files sharing a stem (a `raw fetch` pair), or "
         "a `folder` with every file below it. Dotfiles, empty directories and their contents "
         "are none; `mcp-upload/` is outside `incoming/` and never listed.",
         "Order: oldest first by modification time. A bundle or folder counts as new as its "