docs: ausgelieferte Doku zitiert keine Issue-Nummern mehr, docs verify prueft es (schliesst #77)

Files changed:
- .gitignore
- CHANGES.md
- EVALS.md
- INSTALL.md
- README.md
- VERSION
- docs/pipeline-rationale.md
- instructions/CONTRACT.md
- instructions/bootstrap.md
- instructions/dev/issue-tracking.md
- instructions/evolve-subtypes.md
- instructions/kb-profiles.md
- instructions/mcp-read-server.md
- instructions/wiki-ingest/SKILL.md
- kb/CONTRACT.md
- kb/concepts/COLLECTION.md
- kb/sources/COLLECTION.md
- raw/CONTRACT.md
- tools/.coveragerc
- tools/CONTRACT.md
- tools/README.md
- tools/chemenu/commands/docs_verify.py
- tools/chemenu/tests/test_docs_verify.py
- types/source.schema.yaml
- types/type-spec.md

instructions/mcp-read-server.md

@@ -93,8 +93,7 @@ everything an operator needs that is *true of the software* rather than of one i
 - **Asked to expose a write tool?** There is none, and the way to add one is not a flag. The
   server imports nothing under `chemenu.commands`, so `new`, `touch`, `xref`, `cite`, `publish`
   and `migrate` are unreachable from it rather than filtered out of a list. Submitting documents
-  from outside is a different design with a quarantine in it - Gitea #32 - not a tool added
-  here.
+  from outside is a different design, with a quarantine in it - not a tool added here.
 - **Asked to rate-limit inside the server?** Rate limiting belongs in the middleware in front of
   the process, next to authentication. Not the Iteration Budget Gate: that exists to stop an
   agent *session* from iterating unnoticed over the wiki's state, which is why retrieval is