feat: Implement syntactic sugar and site-specific discovery config

- Add syntactic sugar for container transformation: .insertr containers → children get .insertr
- Fix discovery auto-running when disabled with site-specific config loading
- Add comprehensive styling test examples for HTML attribute preservation
- Include test input for syntactic sugar validation
- Update discovery defaults to respect developer intent (disabled by default)

cmd/enhance.go

@@ -92,8 +92,49 @@ func runEnhance(cmd *cobra.Command, args []string) {
 		client = content.NewMockClient()
 	}
 
-	// Create enhancer
-	enhancer := content.NewDefaultEnhancer(client, siteID)
+	// Load site-specific configuration
+	enhancementConfig := content.EnhancementConfig{
+		Discovery: content.DiscoveryConfig{
+			Enabled:    false, // Default: disabled for explicit class="insertr" markings only
+			Aggressive: false,
+			Containers: true,
+			Individual: true,
+		},
+		ContentInjection: true,
+		GenerateIDs:      true,
+	}
+
+	// Override with site-specific discovery config if available
+	if siteConfigs := viper.Get("server.sites"); siteConfigs != nil {
+		if configs, ok := siteConfigs.([]interface{}); ok {
+			for _, configInterface := range configs {
+				if configMap, ok := configInterface.(map[string]interface{}); ok {
+					if configSiteID, ok := configMap["site_id"].(string); ok && configSiteID == siteID {
+						// Found matching site config, load discovery settings
+						if discoveryMap, ok := configMap["discovery"].(map[string]interface{}); ok {
+							if enabled, ok := discoveryMap["enabled"].(bool); ok {
+								enhancementConfig.Discovery.Enabled = enabled
+								fmt.Printf("🔧 Site '%s': discovery.enabled=%v\n", siteID, enabled)
+							}
+							if aggressive, ok := discoveryMap["aggressive"].(bool); ok {
+								enhancementConfig.Discovery.Aggressive = aggressive
+							}
+							if containers, ok := discoveryMap["containers"].(bool); ok {
+								enhancementConfig.Discovery.Containers = containers
+							}
+							if individual, ok := discoveryMap["individual"].(bool); ok {
+								enhancementConfig.Discovery.Individual = individual
+							}
+						}
+						break
+					}
+				}
+			}
+		}
+	}
+
+	// Create enhancer with loaded configuration
+	enhancer := content.NewEnhancer(client, siteID, enhancementConfig)
 
 	fmt.Printf("🚀 Starting enhancement process...\n")
 	fmt.Printf("📁 Input: %s\n", inputDir)

cmd/serve.go

@@ -138,6 +138,26 @@ func runServe(cmd *cobra.Command, args []string) {
 					if autoEnhance, ok := configMap["auto_enhance"].(bool); ok {
 						site.AutoEnhance = autoEnhance
 					}
+					// Parse discovery config if present
+					if discoveryMap, ok := configMap["discovery"].(map[string]interface{}); ok {
+						discovery := &content.DiscoveryConfig{
+							Containers: true, // defaults
+							Individual: true,
+						}
+						if enabled, ok := discoveryMap["enabled"].(bool); ok {
+							discovery.Enabled = enabled
+						}
+						if aggressive, ok := discoveryMap["aggressive"].(bool); ok {
+							discovery.Aggressive = aggressive
+						}
+						if containers, ok := discoveryMap["containers"].(bool); ok {
+							discovery.Containers = containers
+						}
+						if individual, ok := discoveryMap["individual"].(bool); ok {
+							discovery.Individual = individual
+						}
+						site.Discovery = discovery
+					}
 					if site.SiteID != "" && site.Path != "" {
 						sites = append(sites, site)
 					}