feat: add frame resolution to page type dispatcher and config loader

quartz/plugins/loader/config-loader.ts

@@ -543,6 +543,11 @@ export async function loadQuartzLayout(layoutOverrides?: {
         }
       }
 
+      // Apply frame template override
+      if (override.template) {
+        ptLayout.frame = override.template
+      }
+
       byPageType[pageType] = ptLayout
     }
   }

quartz/plugins/loader/types.ts

@@ -159,6 +159,8 @@ export interface FlexGroupConfig {
 export interface PageTypeLayoutOverride {
   exclude?: string[]
   positions?: Partial<Record<LayoutPosition, PluginLayoutDeclaration[]>>
+  /** Override the page frame template (e.g. "default", "full-width", "minimal") */
+  template?: string
 }
 
 /** Top-level layout section of quartz.config.yaml */

quartz/plugins/pageTypes/dispatcher.ts

@@ -21,6 +21,8 @@ function resolveLayout(
   byPageType: Record<string, Partial<FullPageLayout>>,
 ): FullPageLayout {
   const overrides = byPageType[pageType.layout] ?? {}
+  // Frame priority: config override > page type declaration > default
+  const frame = overrides.frame ?? pageType.frame ?? "default"
   return {
     head: overrides.head ?? sharedDefaults.head!,
     header: overrides.header ?? sharedDefaults.header ?? [],
@@ -30,6 +32,7 @@ function resolveLayout(
     left: overrides.left ?? sharedDefaults.left ?? [],
     right: overrides.right ?? sharedDefaults.right ?? [],
     footer: overrides.footer ?? sharedDefaults.footer!,
+    frame,
   }
 }