- Template editor and ReportServer web: a Help page with the user guides (`help/{guide}`, opens in a new tab). Both apps show the template editor guide, the AI assistant guide and the ReportServer guide in the language of the UI (Czech or English, a missing English guide falls back to Czech with a note), with a table of contents from the headings, behind the sign-in like the rest of the app. The guides and their screenshots come from `doc/` at build time (embedded in `NetReporter.UiShared`, rendered with Markdig); links between the guides stay in the app and links to the developer documentation become plain text. - Template editor: a question mark in the app bar, *View → Help* (editor guide, assistant guide) and *Help* in the command palette; a question mark in the *Data* and *Errors* panels, the *Assets* dialog and the *ISDOC* tab opens the matching chapter. ReportServer web: a question mark in the header and on the *Templates*, *Render*, *Jobs* and *API tokens* pages. - Fix: the template editor and the ReportServer web started at the same time against an empty account database each created their own Data Protection key, so the shared sign-in cookie of one app was not readable in the other (*Unprotect ticket failed*, back to the sign-in page) until the apps were restarted. A new key is now created under a PostgreSQL advisory lock after reading the keys again, and an app takes over the key another app has just created (also when both rotate the key at the same time). - Fix (ReportServer web): pasting a JSON text over 32 KB into an editor on the *Render* or *Templates* page (an ad hoc template, data, the template JSON) closed the Blazor connection and the page fell back to its default state. The web now allows SignalR messages up to 4 MiB like the template editor (`JsonEditorLimits`, shared by both apps). - Docs: the user guides of the template editor, the AI assistant and ReportServer describe the current layout (ribbon and docked panels of the editor, the master-detail *Templates* page and the *Render* workspace of the web) with new screenshots, and have English versions in `en/` folders. The screenshots of both languages are taken by `tools/guide-screenshots`. - Website: a basic presentation website of NetReporter (library, editor, server) in `web/`, static and built on the design system of advisor-soft.com (its `site.css` and fonts copied unchanged, no inline styles or scripts), so it can later be attached to the company website; `web/README.md` describes the options. Celý seznam změn: CHANGELOG.md v balíčku a https://dev.azure.com/advsoft/Knihovny/_git/NetReporter?path=/src/NetReporter/CHANGELOG.md