feat: Prosa ist kein Identifier - Link-Taxonomie als Enum, generierte Regionen mit Markern (4.0.0)

Files changed:
- .gitea/workflows/ci.yml
- AGENTS.md
- CHANGES.md
- VERSION
- instructions/CONTRACT.md
- instructions/link-taxonomy.md
- instructions/migrations/4.0.0-link-taxonomy.md
- instructions/setup-instance.md
- kb/CONTRACT.md
- kb/CONVENTIONS.md
- kb/CONVENTIONS.md.template
- kb/comparisons/COLLECTION.md
- kb/concepts/COLLECTION.md
- kb/entities/COLLECTION.md
- kb/sources/COLLECTION.md
- tools/CONTRACT.md
- tools/README.md
- tools/chemenu/blocks.py
- tools/chemenu/cli.py
- tools/chemenu/commands/cite_cmd.py
- tools/chemenu/commands/dist_cmd.py
- tools/chemenu/commands/docs_verify.py
- tools/chemenu/commands/doctor.py
- tools/chemenu/commands/links_cmd.py
- tools/chemenu/commands/migrate_cmd.py
- tools/chemenu/commands/new_page.py
- tools/chemenu/commands/page_ops.py
- tools/chemenu/commands/run_budget.py
- tools/chemenu/commands/xref.py
- tools/chemenu/conventions.py
- tools/chemenu/corpus_diff.py
- tools/chemenu/frontmatter_io.py
- tools/chemenu/kb_collections.py
- tools/chemenu/kb_state.py
- tools/chemenu/links.py
- tools/chemenu/lint_core.py
- tools/chemenu/provenance.py
- tools/chemenu/sections.py
- tools/chemenu/tests/conftest.py
- tools/chemenu/tests/test_blocks.py
- tools/chemenu/tests/test_cite_cmd.py
- tools/chemenu/tests/test_conventions.py
- tools/chemenu/tests/test_dist_cmd.py
- tools/chemenu/tests/test_doctor.py
- tools/chemenu/tests/test_migrate_cmd.py
- tools/chemenu/tests/test_new_page.py
- tools/chemenu/tests/test_pipeline_l0.py
- tools/chemenu/tests/test_types_cmd.py
- tools/chemenu/tests/test_xref.py
- types/concept.schema.yaml
- types/entity.md
- types/entity.schema.yaml
- types/instruction.schema.yaml
- types/type-spec.md
- work/link-taxonomy-migration/README.md
- work/link-taxonomy-migration/plan.md

kb/CONVENTIONS.md.template

@@ -3,16 +3,8 @@
 language: en
 profile: none
 sections:
-  relationships: Relationships
-  see_also: See Also
+  links: Relationships
   footnotes: Footnotes
-# Headings this instance no longer writes but still recognizes, so a corpus can
-# be translated page by page instead of all at once. Optional; the names this
-# stack wrote before this file existed are always recognized anyway.
-# section_aliases:
-#   relationships: [Beziehungen]
-#   see_also: [Siehe auch]
-#   footnotes: [Fußnoten]
 ---
 
 # kb/ - Authoring Conventions of This Instance
@@ -29,9 +21,9 @@ Ready-made answers to every section below - including a complete German profile
 [instructions/kb-profiles.md](../instructions/kb-profiles.md). That catalogue is a palette, not
 an enum: adopt an entry, adapt it, or write your own. What is written *here* is what holds.
 
-The frontmatter above is the one machine-read part. `sections:` names the three headings
-`wikitool xref` and `wikitool cite` write into. Set them before the first page is written:
-afterwards, changing one is a corpus migration rather than an edit.
+The frontmatter above is the one machine-read part. `sections:` names the headings the two
+generated regions render under. Safe to change at any time - each region is located by its
+marker pair, so a rename re-renders words and nothing else.
 
 ## Language
 
@@ -52,10 +44,8 @@ is the one those terms are already in.}
 
 ### Section headings
 
-The canonical names are the frontmatter's. Any name this instance previously wrote stays
-recognized through `section_aliases:`, which is what lets a corpus be translated page by page.
-Renaming such a heading is the translation pass's job, never a side effect of another command.
-Any *other* heading an author adds is ordinary prose.
+The two generated regions render under the frontmatter's headings. An author never writes inside
+them - they are rebuilt from frontmatter on every write. Any *other* heading is ordinary prose.
 
 ## Naming
 
@@ -80,13 +70,9 @@ Bad: {the same sentence written the way it must not be.}
 
 ## Relationship labels
 
-`tools/wikitool xref add --rel-a/--rel-b` takes a free-text label. Listing the ones this
-instance uses is what keeps a graph typed rather than a wiki full of "related to":
-
-{the label vocabulary, in the KB language}
-
-No code matches on these, so an old label on an untranslated page is stale wording, not a
-broken reference.
+**Not this file's to list, and not localized.** A label is a machine value in `related:`, drawn
+from [instructions/link-taxonomy.md](../instructions/link-taxonomy.md) and authorised per
+destination in each `kb/<name>/COLLECTION.md`'s `outbound:` block.
 
 ## Confidence rubric
 
@@ -99,6 +85,5 @@ contract's. What the number *means* is this instance's:
 
 ## Keeping this file honest
 
-Change it when a convention actually changes, and treat a change to `sections:` as a corpus
-migration rather than an edit. `wikitool doctor` FAILs on a missing or unfilled file, and
-`wikitool docs verify` refuses a `sections:` block that does not name all three slots.
+Change it when a convention actually changes. `wikitool doctor` FAILs on a missing or unfilled
+file, and `wikitool docs verify` refuses a `sections:` block that does not name both regions.