Edit any note and its images from the admin page

Every note gets an Edit form built from its note type's schema: image
fields show a thumbnail with a pick from the vault or an upload, link
fields offer note names, and lists of rows can be added to, removed and
reordered. A new Site pages view lists each page of the site with its
text and images and the notes that fill it. Image and link fields now
carry a JSON Schema format so a form knows to offer a picker.

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_012aSbo2D1qP8cMFQCykf7kx

services/admin/src/layout.ts

@@ -8,6 +8,7 @@ export interface Flash {
 
 const nav: [string, string][] = [
   ["/", "Overview"],
+  ["/site", "Site pages"],
   ["/review", "Review"],
   ["/inbox", "Inbox"],
   ["/notes", "Notes"],