Redesign study lesson UI: progress bar, sidebar nav, inline answers; v1.2.5

- Progress bar: thin gold bar under lesson label showing completed/total lessons
- Sidebar lesson navigator: all lessons listed with ✓/current/○ states, replaces static Study Track + Lesson Navigation blocks
- Notes panel moves to sidebar: clicking a block's Note button opens NoteCard in sidebar instead of inline, preserving reading position
- Inline reflection answers: textareas under each question auto-save to quiz API; replaces separate quiz page link
- Note buttons: "Note" / "✎ Note" text label instead of bare pencil icon for better discoverability
- Greek Word Study block hidden when lesson has no greek notes

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

package.json

@@ -1,7 +1,7 @@
 {
   "name": "siteforge",
   "private": true,
-  "version": "1.2.4",
+  "version": "1.2.5",
   "type": "module",
   "scripts": {
     "dev": "vite",