Update README and AGENTS

README.md

@@ -25,6 +25,39 @@ GOOS=linux GOARCH=arm go build -o datascape .
 |--------|-----|
 | Browse | Navigate folders at `/` |
 | Read | Any folder with `index.md` renders it as HTML |
-| Edit | Append `?edit` to any folder URL, or click **Edit** |
-| Save | POST from the edit form writes `index.md` to disk |
+| Edit | Append `?edit` to any folder URL, or click **[EDIT]** (Alt+Shift+E) |
+| Save | POST from the edit form writes `index.md` to disk; folder is created if needed |
+| New page | Click **[NEW]** (Alt+Shift+N), enter a name — opens the new page in edit mode |
 | Files | Drop PDFs, images, etc. next to `index.md` — they appear in the listing |
+
+Navigating to a URL that does not exist shows an empty page with a **[CREATE]** prompt.
+
+## Special Folder Types
+
+A folder can opt into special rendering by adding a `.page-settings` file:
+
+```
+type = diary
+```
+
+### Diary
+
+Designed for a chronological photo diary. Expected structure:
+
+```
+FolderName/
+  .page-settings        ← type = diary
+  YYYY/
+    YYYY-MM-DD Desc.jpg ← photos named with date prefix
+    MM/
+      DD/
+        index.md        ← diary entry for that day
+```
+
+| View | What renders |
+|------|-------------|
+| Year (`YYYY/`) | Section per month with link and photo count |
+| Month (`MM/`) | Section per day with entry content and photo grid |
+| Day (`DD/`) | Entry content and photo grid |
+
+Days with photos but no `index.md` still appear in the month view and can be created by clicking their heading link.