feat: lint reports sections that hold only template placeholders as Unfilled Template Sections (#94)

Files changed:
- CHANGES.md
- EVALS.md
- VERSION
- instructions/wiki-lint/SKILL.md
- instructions/wiki-manage/SKILL.md
- tools/CONTRACT.md
- tools/chemenu/blocks.py
- tools/chemenu/commands/lint.py
- tools/chemenu/evals/scorecard.py
- tools/chemenu/lint_core.py
- tools/chemenu/tests/test_blocks.py
- tools/chemenu/tests/test_evals.py
- tools/chemenu/tests/test_lint.py
- tools/chemenu/tests/test_pipeline_l0.py
- types/type-spec.md

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

CHANGES.md

@@ -59,7 +59,7 @@ concern - readable here, never shipped as something to parse.
 
 ---
 
-## 8.0.0-beta.36 - 2026-10-04 - kb/CONTRACT.md names section anchors in wikilinks and the Broken Anchors finding
+## 8.0.0-beta.37 - 2026-10-04 - lint: Unfilled Template Sections - a section still holding only its template's TODO placeholders (advisory)
 
 **Author:** Torben Nehmer
 
@@ -106,6 +106,7 @@ concern - readable here, never shipped as something to parse.
 - The test suite no longer ships, and dist upgrade deletes what a release stops shipping
 - Link-Katalog: Beteiligungs- und RACI-Label von der Projektseite aus
 - Organisationsseiten: Personen als Abschnitt mit Aufstieg, entity_type organization, member-of, Lint-Befund broken_anchors
+- lint: Unfilled Template Sections - a section still holding only its template's TODO placeholders (advisory)
 
 **Low impact**
 - version bump no longer points at version release in its output
@@ -149,6 +150,24 @@ concern - readable here, never shipped as something to parse.
 - kb/CONTRACT.md names section anchors in wikilinks and the Broken Anchors finding
 <!-- /wikitool:bumps -->
 
+### lint: Unfilled Template Sections - a section still holding only its template's TODO placeholders (advisory)
+
+`lint` had no finding for a page without substance: every check measured structure, links,
+provenance or schema, so a page carrying only its `wikitool new` scaffold and one line read the
+same as a complete one - and a later session took its subject as covered and stopped looking at
+the source. The new advisory finding `unfilled_sections` names each page with a `##` section
+whose non-blank lines are all template placeholders, with those sections' headings. A
+placeholder line is one whose content starts with the token `TODO` (after an optional list
+marker, checkbox, table cell or bold field label); code, generated regions and footnote
+definitions are out of view, and neither an empty section nor a single open field beside written
+ones is reported. Word count and "page carries a placeholder" were measured against two corpora
+and rejected - both misjudge short complete pages or pages with one honest gap marker; the
+section rule separated stubs from complete pages in both. On the demo corpus it names 34 pages.
+`types/type-spec.md` now makes `TODO` the contract for placeholder text in a template, an
+instance-owned one included; `wiki-lint` keeps the finding out of its mechanical repair step;
+`eval score` counts it under `advisories`. Not a hard error, so no instance's
+`lint --fail-on-error` turns red on this upgrade (Gitea #94).
+
 ### kb/CONTRACT.md names section anchors in wikilinks and the Broken Anchors finding
 
 The stage contract's rules for writing a wikilink (§ Titles are identifiers) covered wrapped links