- Lab page is now read-only with a settings screen for levels/variants;
variant issuance moved to a large modal on the group page (assign-fragment).
- Header: bordeaux logo and 2px accent underline, bordeaux login/logout/theme
buttons; smaller radii across the UI; filled secondary/danger buttons.
- Includes prior agent work (login backoff, no-cache pages, API timeouts,
content tweaks) and fixes (variant usage Map.values, import order).
- Bump static asset version to v=9.
- article page: ← / → navigation across the whole material tree (including
between sections), sticky sidebar outline with the current article highlighted
- editing on chapter, section and article pages: rename, publish/hide, delete,
create section/article, move articles while deleting a section; forms return
to the page they were opened from (validated internal `back` parameter)
- article page opens the edit dialog directly via ?edit=1 (used by "Править"
links on section/chapter pages)
- import: optional sync flag — with it stale sections/articles of archived
chapters are deleted (previous behaviour), without it import only adds and
updates, so material edited in the UI is not overwritten
- student area: lab page and lab cards now show the defense date next to the
submission deadline
- fix SpEL crash on the student lab page (`and` with nullable strings)
- drag & drop now saves in the background (700 ms debounce) without reloading:
sections stay open, scroll position is kept; on failure it retries every 3 s,
and navigator.sendBeacon flushes unsaved changes on page leave
- removed the explicit save button (autosave only), status indicator shows
«Изменения не сохранены… / Сохранение… / Порядок сохранён»
- new global ui-state.js: restores open <details> and scroll position after any
reload/redirect within the same page (applies to all pages, not just /learn)
- auto-expand a collapsed chapter/section while hovering during drag
- academic: POST /api/v1/content/reorder applies a full tree arrangement in one
request — chapter order, section order and section->chapter moves, article
order and article->section moves (positions and parent ids updated)
- web: POST /admin/content/reorder accepts the tree from JS (CSRF via query
param), calls the gateway with the admin token
- /learn admin view: draggable handles (⠿) for chapters, sections and articles;
drop before/after to reorder, drop into a chapter/section to move; visual
indicators; structure is collected from DOM and saved, then page reloads
- docs: class diagram method + new sequence diagram for drag & drop
- migration V5 adds published flag (default true) to chapters/sections/articles
- ContentService: tree(includeHidden) filters, treeAll(), findArticle(includeHidden),
set*Published; public tree/article expose only published items
- admin API: GET /tree/all, GET /all/{chapter}/{section}/{article}, PUT
/{chapters|sections|articles}/{id}/published
- web: learn pages for admins load the full tree, show "скрыто" badges and
publish/hide buttons for every chapter, section and article; hidden articles
open in preview for admins, guests get "not found"; article view carries
published flag
- Dashboard: real stats (groups, students, labs, average grade), labs/groups
summary lists, no placeholder tile
- Lab page: view + edit combined — metadata form in modal, condition rendered
as markdown, per-level variant tables with add/edit/delete dialogs,
level rename/delete, student level/variant selectors with group filter
- Labs list: create-lab dialog with manual level entry (code; title lines)
- Groups: create-group dialog, add-student dialog (auto password, toast card)
- Content: public /learn reader is the single place; admin buttons (new
article with chapter/section create-or-select, rename/delete chapters and
sections, move articles between sections, import zip) appear for admins;
removed separate 'Контент' admin section
- Buttons use btn classes instead of nav-link
- Favicon: generated SVG book icon
- Security: CSRF synchronizer token interceptor (replaced spring-security in
web which broke logback under nested jars), session regenerated on login,
hardened session cookie, gateway actuator limited to health,info
- Jackson 3: nullable-safe request DTOs for labs (FAIL_ON_NULL_FOR_PRIMITIVES)
- academic: POST /labs (manual create with levels), level add/rename/delete,
content chapters/sections CRUD, article create/move/delete endpoints
