Targeted stale wiki cache reuse fix

**Scope Audited**
`module/` release/wiki wrapper flow and `toolkit/` wiki generation cache logic.

**Changes Made**
Root cause was stale wiki cache reuse. The generator cache considered digest + page count, but not generator version, so a restored VPS cache with old generated output could skip regeneration.

Changed [wiki_native.go](/home/vicky/Projects/nwnee-shadowsoverwestgate/toolkit/internal/topdata/wiki_native.go:29) to bump the wiki generator to `nodebb-tiptap-html-v3`, and changed [wiki_native.go](/home/vicky/Projects/nwnee-shadowsoverwestgate/toolkit/internal/topdata/wiki_native.go:268) so cached pages are current only when `state.version` matches.

**Configuration/Schema Impact**
No YAML/config/schema changes. Existing `.cache/wiki/state.json` files with `nodebb-tiptap-html-v2` will be invalidated and regenerated.

**Compatibility Impact**
This is compatible with existing caches; it only forces one regeneration when the new toolkit runs. After that, normal digest-based skipping resumes.

**Tests Added**
Added [TestBuildWikiRegeneratesOldGeneratorCache](/home/vicky/Projects/nwnee-shadowsoverwestgate/toolkit/internal/topdata/wiki_native_test.go:183), which simulates a `v2` cache and verifies `build-wiki` regenerates it.

**Validation Performed**
- Confirmed new test failed before the fix with `wiki status "skipped"`.
- `go test ./internal/topdata -count=1` passes.
- `./build-tool.sh` succeeds.
- `SOW_TOOLS_DEV_BINARY=../toolkit/tools/sow-toolkit ./build-wiki.sh` now reports:
  - `wiki pages: 1163`
  - `wiki status: generated`
- Local generated race pages: `17`.

**Remaining Risk / VPS Next Step**
The VPS release job must use this rebuilt/published toolkit. On the next run, you should see the wiki build regenerate once before deploy, and deploy should load `1163` local pages instead of `1092`, including `races:*` pages.

internal/topdata/wiki_native.go

@@ -26,7 +26,7 @@ const (
 	legacyWikiRootDirName = ".wiki"
 	wikiPagesDirName      = "pages"
 	wikiStateFileName     = "state.json"
-	wikiGeneratorVersion  = "nodebb-tiptap-html-v2"
+	wikiGeneratorVersion  = "nodebb-tiptap-html-v3"
 	wikiGeneratedStatus   = "generated"
 	wikiSkippedStatus     = "skipped"
 )
@@ -266,6 +266,9 @@ func wikiStatusPagesEnabled(cfg project.TopDataWikiConfig) bool {
 }
 
 func wikiCachedPagesAreCurrent(outputDir string, state wikiStateDocument) bool {
+	if state.Version != wikiGeneratorVersion {
+		return false
+	}
 	if state.Pages <= 0 {
 		return false
 	}

internal/topdata/wiki_native_test.go

@@ -180,6 +180,62 @@ func TestBuildWikiRegeneratesMissingCachedPages(t *testing.T) {
 	}
 }
 
+func TestBuildWikiRegeneratesOldGeneratorCache(t *testing.T) {
+	root := testProjectRoot(t)
+	mkdirAll(t, filepath.Join(root, "topdata", "data", "skills"))
+	writeFile(t, filepath.Join(root, "topdata", "base_dialog.json"), "{}\n")
+	writeFile(t, filepath.Join(root, "topdata", "data", "skills", "base.json"), `{
+  "output": "skills.2da",
+  "columns": ["Label", "Name", "Description", "HideFromLevelUp", "Untrained", "KeyAbility", "ArmorCheckPenalty", "Constant"],
+  "rows": [
+    {
+      "id": 0,
+      "key": "skills:athletics",
+      "Label": "Athletics",
+      "Name": {"tlk": {"key": "skills:athletics.name", "text": "Athletics"}},
+      "Description": {"tlk": {"key": "skills:athletics.description", "text": "Ability: Strength."}},
+      "HideFromLevelUp": "0",
+      "Untrained": "1",
+      "KeyAbility": "STR",
+      "ArmorCheckPenalty": "1",
+      "Constant": "SKILL_ATHLETICS"
+    }
+  ]
+}`+"\n")
+	writeFile(t, filepath.Join(root, "topdata", "data", "skills", "lock.json"), `{"skills:athletics":0}`+"\n")
+
+	proj := testProject(root)
+	proj.Config.TopData.ReferenceBuilder = ""
+	if _, err := BuildNative(proj, nil); err != nil {
+		t.Fatalf("BuildNative failed: %v", err)
+	}
+
+	statePath := filepath.Join(root, ".cache", "wiki", "state.json")
+	state, err := loadWikiState(statePath)
+	if err != nil {
+		t.Fatalf("read state: %v", err)
+	}
+	state.Version = "nodebb-tiptap-html-v2"
+	if err := saveWikiState(statePath, state); err != nil {
+		t.Fatalf("save old-version state: %v", err)
+	}
+
+	result, err := BuildWikiWithOptions(proj, BuildWikiOptions{}, nil)
+	if err != nil {
+		t.Fatalf("BuildWikiWithOptions failed: %v", err)
+	}
+	if result.Status != wikiGeneratedStatus {
+		t.Fatalf("expected old generator cache to regenerate, got wiki status %q", result.Status)
+	}
+	refreshed, err := loadWikiState(statePath)
+	if err != nil {
+		t.Fatalf("read refreshed state: %v", err)
+	}
+	if refreshed.Version != wikiGeneratorVersion {
+		t.Fatalf("expected refreshed generator version %q, got %q", wikiGeneratorVersion, refreshed.Version)
+	}
+}
+
 func TestRenderNodeBBManagedHTMLPreservesHeadinglessTemplateHTML(t *testing.T) {
 	source := strings.TrimSpace(`
 <p class="wiki-callout wiki-callout--status">This is generated.</p>