feat(pages): add navigation label translation support

Add translation support for navigation section labels (Value Props, Features, Pricing, Blog, Gallery, Compare, etc.). Adds TemplateDefaultLabels function that returns template-specific creative names (e.g., "Systems Analysis" for value props in Architecture Deep Dive). Auto-applies defaults when enabling pages or changing templates. Includes UI fields in languages settings and translation JSON serialization. Enables full localization of section headings.

routers/web/repo/setting/pages.go

@@ -87,6 +87,31 @@ func savePagesLandingConfig(ctx *context.Context, config *pages_module.LandingCo
 	return repo_model.UpdatePagesConfig(ctx, dbConfig)
 }
 
+// applyTemplateDefaultLabels populates Navigation label fields with
+// template-specific defaults. Existing non-empty labels are preserved.
+func applyTemplateDefaultLabels(config *pages_module.LandingConfig) {
+	defaults := pages_module.TemplateDefaultLabels(config.Template)
+	nav := &config.Navigation
+	if nav.LabelValueProps == "" {
+		nav.LabelValueProps = defaults.LabelValueProps
+	}
+	if nav.LabelFeatures == "" {
+		nav.LabelFeatures = defaults.LabelFeatures
+	}
+	if nav.LabelPricing == "" {
+		nav.LabelPricing = defaults.LabelPricing
+	}
+	if nav.LabelBlog == "" {
+		nav.LabelBlog = defaults.LabelBlog
+	}
+	if nav.LabelGallery == "" {
+		nav.LabelGallery = defaults.LabelGallery
+	}
+	if nav.LabelCompare == "" {
+		nav.LabelCompare = defaults.LabelCompare
+	}
+}
+
 // setCommonPagesData sets common data for all pages settings pages
 func setCommonPagesData(ctx *context.Context) {
 	config := getPagesLandingConfig(ctx)
@@ -141,6 +166,7 @@ func PagesPost(ctx *context.Context) {
 		config := getPagesLandingConfig(ctx)
 		config.Enabled = true
 		config.Template = template
+		applyTemplateDefaultLabels(config)
 		if err := savePagesLandingConfig(ctx, config); err != nil {
 			ctx.ServerError("EnablePages", err)
 			return
@@ -161,6 +187,7 @@ func PagesPost(ctx *context.Context) {
 		}
 		config := getPagesLandingConfig(ctx)
 		config.Template = template
+		applyTemplateDefaultLabels(config)
 		if err := savePagesLandingConfig(ctx, config); err != nil {
 			ctx.ServerError("UpdateTemplate", err)
 			return
@@ -766,6 +793,17 @@ type TranslationView struct {
 	// SEO
 	SEOTitle       string
 	SEODescription string
+	// Navigation labels
+	NavLabelValueProps string
+	NavLabelFeatures   string
+	NavLabelPricing    string
+	NavLabelBlog       string
+	NavLabelGallery    string
+	NavLabelCompare    string
+	NavLabelDocs       string
+	NavLabelReleases   string
+	NavLabelAPI        string
+	NavLabelIssues     string
 }
 
 // overlayString extracts a string from a map
@@ -938,6 +976,20 @@ func parseTranslationView(t *pages_model.Translation, config *pages_module.Landi
 		view.SEODescription = overlayString(seo, "description")
 	}
 
+	// Navigation labels
+	if nav, ok := overlay["navigation"].(map[string]any); ok {
+		view.NavLabelValueProps = overlayString(nav, "label_value_props")
+		view.NavLabelFeatures = overlayString(nav, "label_features")
+		view.NavLabelPricing = overlayString(nav, "label_pricing")
+		view.NavLabelBlog = overlayString(nav, "label_blog")
+		view.NavLabelGallery = overlayString(nav, "label_gallery")
+		view.NavLabelCompare = overlayString(nav, "label_compare")
+		view.NavLabelDocs = overlayString(nav, "label_docs")
+		view.NavLabelReleases = overlayString(nav, "label_releases")
+		view.NavLabelAPI = overlayString(nav, "label_api")
+		view.NavLabelIssues = overlayString(nav, "label_issues")
+	}
+
 	return view
 }
 
@@ -1159,6 +1211,21 @@ func buildTranslationJSON(ctx *context.Context) string {
 		overlay["seo"] = seo
 	}
 
+	// Navigation labels
+	nav := map[string]any{}
+	for _, key := range []string{
+		"label_value_props", "label_features", "label_pricing",
+		"label_blog", "label_gallery", "label_compare",
+		"label_docs", "label_releases", "label_api", "label_issues",
+	} {
+		if v := ctx.FormString("trans_nav_" + key); v != "" {
+			nav[key] = v
+		}
+	}
+	if len(nav) > 0 {
+		overlay["navigation"] = nav
+	}
+
 	if len(overlay) == 0 {
 		return ""
 	}