feat: Link-Taxonomie abgeschlossen - Lint hart ab kb_version 4.0.0, outbound: an Type-Spec gebunden, part-of/composition als Inversenpaar (4.1.0, #40)

Files changed:
- CHANGES.md
- VERSION
- instructions/link-taxonomy.md
- instructions/migrations/4.0.0-link-taxonomy.md
- kb/comparisons/amd-pstate vs acpi-cpufreq.md
- kb/concepts/Episodic Memory.md
- kb/concepts/Memory Lifecycle.md
- kb/concepts/Mesh Sync.md
- kb/concepts/Procedural Memory.md
- kb/concepts/Reciprocal Rank Fusion.md
- kb/concepts/Semantic Memory.md
- kb/concepts/Shared vs Private.md
- kb/concepts/Split Threshold.md
- kb/concepts/Stub Threshold.md
- kb/concepts/Supersession.md
- kb/concepts/Typed Relationships.md
- kb/concepts/Vector Search.md
- kb/concepts/Work Coordination.md
- kb/concepts/Working Memory.md
- kb/entities/technologies/Wine-Staging.md
- kb/entities/tools/pascalandy schema.md
- kb/index.md
- kb/log.md
- kb/sources/COLLECTION.md
- tools/CONTRACT.md
- tools/chemenu/commands/lint.py
- tools/chemenu/kb_collections.py
- tools/chemenu/lint_core.py
- tools/chemenu/tests/test_conventions.py
- tools/chemenu/tests/test_lint.py
- tools/chemenu/tests/test_type_resolver.py
- types/comparison.md
- types/comparison.schema.yaml

kb/sources/COLLECTION.md

@@ -1,7 +1,5 @@
 ---
 profile: sources
-outbound:
-  any: [is-evidence-for, defined-in, see-also]
 required_by_stack: true
 ---
 
@@ -40,16 +38,17 @@ The `raw_files:`/`source_url:`/citation rules are shared and live in
 - `tools/wikitool sources trace --raw <path>` answers "what did we learn from this?";
   `tools/wikitool sources coverage` lists raw files no source page claims yet.
 
-## Authorised labels
+## No authorised labels
 
-The `outbound:` block above is what `wikitool lint` and `xref add` check: which labels a page in
-this collection may use, per destination. The catalogue they are drawn from - and what each one
-asserts - is [instructions/link-taxonomy.md](../../instructions/link-taxonomy.md), which binds
-nothing on its own.
+This collection has **no `outbound:` block**, and that is the declaration rather than an
+omission: the `source` type-spec offers no `related:` field, so a source page has nowhere to
+put a labelled edge. Everything it would want to assert is already carried by `raw_files:`,
+`entities:`, `concepts:` and `[^cite-id]` - the mechanical provenance path, not authored edges.
 
-Deliberately narrow. A source page is evidence *about* a source; almost everything it would want to say is already carried by `raw_files:`, `sources:` and `[^cite-id]`, which are the mechanical provenance path rather than authored edges.
-
-Adding a label here is a deliberate contract change, not a way around a refusal.
+An `outbound:` block here would authorise labels that no page in this collection can write.
+`wikitool docs verify` refuses that combination, so the two cannot drift apart: giving source
+pages labelled edges means giving the type-spec a `related:` field first, which is a deliberate
+contract change and not a way around a refusal.
 
 ## Outbound linking