Release Hudra 0.10 beta 1

docs/ARCHITECTURE.md

@@ -13,13 +13,28 @@ The current presentation model uses HTML headings:
 
 - H1 identifies the lesson title
 - H2 identifies the beginning of a new slide
-- content following an H2 belongs to that slide until the next H2
+- H3 identifies the beginning of a new slide
+- H4 identifies a subsection within the current slide
+- content following an H2 or H3 belongs to that slide until the next H2 or H3
+
+Pages without H2 or H3 headings are presented as a single slide.
+
+## Supported pages
+
+Hudra starts only on secure QLearn pages at `qlearn.eq.edu.au` (including
+subdomains) and Canvas pages on an `instructure.com` subdomain. A supported
+page must also contain a recognised lesson-content container and an H1 lesson
+title. Unsupported pages receive a temporary in-page notice and are not put
+into presentation mode.
 
 ## Main components
 
 ### background.js
 
 Handles extension-level behaviour and presentation launch logic.
+Active session routing and window-restoration metadata is kept in
+`chrome.storage.session` so presenter controls survive service-worker restarts.
+Lesson content and slide previews are not persisted.
 
 ### controls.html
 
@@ -37,6 +52,11 @@ Manages presenter navigation, controls and audience communication.
 
 Creates and manages the audience presentation experience.
 
+### page-detection.js
+
+Contains the shared lesson-container and title detection used before launch
+and when presentation mode starts.
+
 ### manifest.json
 
 Defines the extension metadata, permissions and version.