feat: a subtype gets its own page skeleton from types/<type>.<value>.md (#117)

Files changed:
- AGENTS.md
- CHANGES.md
- README.md
- VERSION
- docs/ownership-and-templates.md
- instructions/evolve-subtypes.md
- instructions/setup-instance.md
- instructions/subtype-templates.md
- instructions/upgrade-instance.md
- tools/CONTRACT.md
- tools/chemenu/commands/dist_cmd.py
- tools/chemenu/commands/docs_verify.py
- tools/chemenu/commands/new_page.py
- tools/chemenu/tests/test_dist_cmd.py
- tools/chemenu/tests/test_docs_verify.py
- tools/chemenu/tests/test_new_page.py
- tools/chemenu/tests/test_toc.py
- tools/chemenu/tests/test_type_resolver.py
- tools/chemenu/toc.py
- tools/chemenu/type_resolver.py
- types/concept.decision.md
- types/entity.guidance.md
- types/entity.md
- types/entity.person.md
- 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.30 - 2026-10-03 - lint: a wikilink wrapped across a line break is its own finding; rename and rm see it
+## 8.0.0-beta.31 - 2026-10-03 - new: a subtype gets its own page skeleton from types/<type>.<value>.md
 
 **Author:** Torben Nehmer
 
@@ -102,6 +102,7 @@ concern - readable here, never shipped as something to parse.
 - publish keeps a closing trailer block of --message last, so git reads Co-Authored-By again (#149)
 - Stack-Entwicklung in drei Phasen: stack-dev (Design), stack-build, stack-close - Übergabe über den Tracker, kein Modellwechsel in der Sitzung
 - raw fetch: a sanctioned intake for a URL into incoming/
+- new: a subtype gets its own page skeleton from types/<type>.<value>.md
 
 **Low impact**
 - version bump no longer points at version release in its output
@@ -143,6 +144,35 @@ concern - readable here, never shipped as something to parse.
 - lint: a wikilink wrapped across a line break is its own finding; rename and rm see it
 <!-- /wikitool:bumps -->
 
+### new: a subtype gets its own page skeleton from types/<type>.<value>.md
+
+A type-spec carried one `## Template` block for every value of its subtype field, so `wikitool
+new` scaffolded a person with `Version`, `Sprache/Technik` and `Repository`, and a decision with
+"Wann zu verwenden" instead of context and consequences - and authors rebuilt those pages by
+hand. Now a file `types/<type>.<value>.md` beside the type-spec is the skeleton for pages whose
+subtype field holds `<value>`: plain markdown in the KB language, no frontmatter, its name the
+only declaration. It replaces the block whole; every subtype without such a file, and every type
+without `subtype_field:`, scaffolds byte-identically to before. `guidance` is reserved for
+`<type>.guidance.md`. The stack ships two: `types/entity.person.md` (Rolle, Zugehörigkeit,
+Wirkungszeitraum, Beiträge) and `types/concept.decision.md` (Kontext, Entscheidung, Alternativen,
+Konsequenzen, Status).
+
+`docs verify` reports a subtype template whose `types/<type>.md` is no type-spec with
+`subtype_field:`, whose value the field's enum does not allow, or which carries frontmatter -
+each would otherwise be a file nothing reads. Subtype templates never get a table-of-contents
+region, since `new` copies them into every page. They are page material of an instance-owned type,
+so `dist export` ships them as `.template`, `find_leaks` refuses one under its own name, and
+`dist adopt` takes them; no export carries one unsuffixed, so no `dist upgrade` writes over an
+adopted one. A new manual instruction, `instructions/subtype-templates.md`, is the interview that
+finds subtypes whose pages depart from their template (at least three pages, the same way) and
+writes the template the user accepts. `types/entity.md` and its guidance no longer speak of
+"projects" since the subtype became `codebase`.
+
+**For an existing instance:** nothing changes until it adopts a template - `dist upgrade` lays
+`types/entity.person.md.template` and `types/concept.decision.md.template` beside the adopted
+type-specs; `tools/wikitool dist adopt <path>` takes one, leaving it takes none. Both are valid.
+No page changes (Gitea #117).
+
 ### lint: a wikilink wrapped across a line break is its own finding; rename and rm see it
 
 A `[[...]]` written across a line break - prose wrapped at a fixed column, with the break