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

work/link-taxonomy-migration/plan.md

@@ -0,0 +1,48 @@
+# Plan: link-taxonomy-migration
+
+One unit is one session id and one `publish`, sized against the 60-call iteration budget.
+Per-page cost here is roughly `1 touch` + the edges on it; the corpus-wide commands
+(`index rebuild`, `sources rebuild-index`, `log append`, `publish` twice for the gate) are
+per unit, not per page. That puts the ceiling near 45 pages and the target at 40.
+
+| # | Unit | Pages | Job | Done when |
+|---|------|------:|-----|-----------|
+| u0 | mechanism | 0 | Taxonomy catalogue, `links.py`, `blocks.py`, `outbound:` in every `COLLECTION.md`, `xref` rewritten to one directional edge, lint checks, `links show` for the inbound view, `migrate verify` marker invariant, deletion of `sections.py` and the matching layer | Suite green; `lint` reports the corpus's unlabelled edges as findings rather than crashing |
+| u1 | `kb/entities/systems`, `tools`, `technologies` | ~45 | Label every edge, drop redundant see-also, wrap markers | `migrate verify --path kb/entities --fail-on-error` clean |
+| u2 | `kb/entities/projects`, `people`, `kb/comparisons` | ~40 | as u1 | as u1 |
+| u3 | `kb/concepts` | ~45 | as u1 | `migrate verify --path kb/concepts --fail-on-error` clean |
+| u4 | `kb/sources` | ~50 | as u1, plus `entities:`/`concepts:` on source pages | `migrate verify --path kb/sources --fail-on-error` clean |
+| u5 | close-out | 0 | `migrate done 4.0.0`, `version bump --major`, `CHANGES.md` body, promote nothing, close workshop | `docs verify` + `lint --fail-on-error` green, workshop deleted |
+
+Unit boundaries are written down here *before* the run so that publishing several units
+together stays a planned batch rather than a way around a Mass-Update Gate refusal - see
+`instructions/gates.md`.
+
+## Per-page procedure
+
+1. Read the page's `## Beziehungen` and `## Siehe auch` blocks.
+2. For each labelled bullet: say the sentence `[this page] <label> [target]`. Pick the catalogue
+   label that makes it true. If it only reads true backwards, the edge belongs on the other
+   page - move it, do not invert the label into something the catalogue does not have.
+3. For each bare `## Siehe auch` bullet: drop it if a labelled edge already connects the pair
+   (the tooling lists these). Otherwise decide - a real label, or dropped with the reason
+   recorded in the unit's notes.
+4. Write the edges with `xref add --rel`, never by hand.
+5. The body blocks are then *generated*: no hand-editing inside a marker pair.
+
+## Vocabulary carried between units
+
+`glossary.md` in this directory. A mapping decided in u1 and re-decided in u3 is the failure the
+file exists to prevent - add to it **before** dispatching the next unit.
+
+## Deliberately excluded from this run
+
+- **Commonplace's articulation test and the `connect` report workflow.** They change how ingest
+  proposes links, not how links are stored. Separate question, separate issue.
+- **Promoting the lint checks to hard errors.** During this run an unlabelled edge is a finding,
+  because that is precisely the migration window `.wikitool-kb.json` exists to represent. The
+  promotion is a later version's change, once the corpus can pass it.
+- **`sources:` and `[^cite-id]`.** The provenance path is unlabelled by construction and is not
+  part of the link taxonomy.
+- **Any change to page prose.** This run restates relationships in a new form; it learns
+  nothing new, and a body edit outside a marker pair is out of scope.