fix: a wikilink wrapped across a line break is its own lint finding; rename and rm see it (#115)

Files changed:
- CHANGES.md
- VERSION
- instructions/wiki-lint/SKILL.md
- kb/CONTRACT.md
- tools/CONTRACT.md
- tools/chemenu/commands/lint.py
- tools/chemenu/commands/page_ops.py
- tools/chemenu/kb_scan.py
- tools/chemenu/lint_core.py
- tools/chemenu/tests/test_kb_scan.py
- tools/chemenu/tests/test_lint.py
- tools/chemenu/tests/test_page_ops.py

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

instructions/wiki-lint/SKILL.md

@@ -41,7 +41,8 @@ mechanical half looks exactly like a complete one.
 
    No flags: prints the sections that found something, writes the full report to
    `reports/Lint Report <YYYY-MM-DD>.md`, and names that path. This deterministically finds
-   unreadable frontmatter, broken wikilinks, dangling frontmatter references, orphan pages,
+   unreadable frontmatter, broken wikilinks, wikilinks wrapped across a line break, dangling
+   frontmatter references, orphan pages,
    catalog drift, missing fields, duplicate titles, titles that are not valid, unique file
    names on Windows and macOS, filename/title mismatches, broken
    `raw_files:` references, raw files claimed by more than one source page, invalid type paths,