feat: wikitool move - eine kb-Seite folgt ihrem Subtype ins berechnete Verzeichnis (#56)

Files changed:
- CHANGES.md
- VERSION
- instructions/page-lifecycle.md
- instructions/publish-cycle.md
- tools/CONTRACT.md
- tools/chemenu/cli.py
- tools/chemenu/commands/log_append.py
- tools/chemenu/commands/migrate_cmd.py
- tools/chemenu/commands/new_page.py
- tools/chemenu/commands/page_ops.py
- tools/chemenu/corpus_diff.py
- tools/chemenu/lint_core.py
- tools/chemenu/tests/test_corpus_diff.py
- tools/chemenu/tests/test_lint.py
- tools/chemenu/tests/test_migrate_cmd.py
- tools/chemenu/tests/test_page_ops.py
- tools/chemenu/tests/test_type_resolver.py
- tools/chemenu/type_resolver.py

instructions/page-lifecycle.md

@@ -43,6 +43,29 @@ It strips reference-array entries and bare `- [[Title]]` / `- **label:** [[Title
 leaves prose mentions and inline citations in place and reports them - those are an editorial
 fix afterwards, not a reason to retry the command.
 
+## Move
+
+```bash
+tools/wikitool move --page "<Title>" --dry-run   # see where it would go first
+tools/wikitool move --page "<Title>"
+tools/wikitool move --reconcile --dry-run         # every misplaced page at once
+tools/wikitool move --reconcile
+```
+
+Moves the page's file to the directory its type-spec computes for its current frontmatter -
+`base_dir` + `layout`, the same rule `new` places a page by when it is first created. The
+destination is never chosen by hand: there is no `--to <dir>`. Only the file moves - no body, no
+frontmatter field, and the title (the wiki's only identity for a page) never changes, so no
+reference anywhere in the wiki needs updating.
+
+`--reconcile` applies the same rule corpus-wide in one call; a second run reports nothing left
+to do. `wikitool lint`'s **Misplaced Pages** finding is the advisory this fixes - it is not a
+hard error, so an unreconciled corpus is not a broken one, only one `move` would tidy.
+
+A destination that already holds a file with the page's name is refused, not silently
+overwritten - that only happens on a pre-existing duplicate-title collision, which `lint`'s
+**Duplicate Titles** finding reports separately.
+
 ## Drop a single reference
 
 ```bash
@@ -55,14 +78,17 @@ hand-edit gets cleared. Idempotent.
 
 ## Afterwards
 
-Always close out with [publish-cycle.md](publish-cycle.md), using
-`--op rename` or `--op delete`. Then confirm nothing was left dangling:
+Always close out with [publish-cycle.md](publish-cycle.md), using `--op rename`, `--op delete`,
+or `--op move`. A move changed no reference, so run `wikitool index rebuild` rather than
+`sources rebuild-index` - the catalog is built from where a page's file sits, and nothing else
+about it moved. Then confirm nothing was left dangling:
 
 ```bash
 tools/wikitool lint
 ```
 
-`lint` reports every reference still pointing at nothing.
+`lint` reports every reference still pointing at nothing, and every page still not at its
+computed location.
 
 ## Scope