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# Changelog
The release version **is** the plugin contract version (`HOST_API_VERSION`), so a minor is a
contract break: a plugin's `apiVersion` must match the host's `major.minor` or discovery refuses it
at boot. Entries start at 0.3.0.
## 0.4.0
**Breaking.** Set `apiVersion: "0.4.0"`. The app shell no longer bounds the content column, so a page
that relied on filling it scrolls the document instead.
### The document scrolls
`.app` was a `100dvh` box with `overflow: hidden`, so a page was only reachable below the fold if its
own wrapper was a flex child with `overflow-y: auto`. `.table-wrap` and `.shell-auth` were; nothing
else was, and a long page in `.form-page` clipped everything past the window in every engine.
Now the shell is `min-height: 100dvh` and the document scrolls. The sidebar is `position: sticky` at
full height and the topbar sticks with it, so both stay put as the page flows. Keyboard paging, back/
forward scroll restoration and find-in-page work without a page doing anything.
### A bounded frame is `fill: true`, and the page says what fills it
A page whose whole point is a frame — a board of full-height columns, a table whose header must stay
put — passes `fill: true` to the shell. `.app-fill` restores the previous model: the viewport is the
page, and a region inside it scrolls.
The two halves are split on purpose. The shell bounds the content column, because the height is the
shell's to give and a page computing it would have to know the topbar's own. The page marks the
element that takes that height with `.scroll-region`, because only the page knows its own tree — a
host rule keyed on a component would work for a table held directly by the content slot and silently
clip one nested any deeper. `data-table` takes `fills: true`, which puts the class on its own wrapper.
### Upgrading a plugin
1. Set `apiVersion: "0.4.0"`.
2. A page that scrolled the whole window needs no change — it now scrolls the document.
3. A page holding a region that filled the content column passes `fill: true` to the shell, puts
`.scroll-region` on that region, and makes every wrapper between it and the content slot a flex
column (`display: flex; flex-direction: column; flex: 1 1 auto; min-height: 0`). Miss a wrapper and
the region grows instead of scrolling, and `fill`'s bounded box clips it.
4. A table whose header must stay put passes `fills: true` to `data-table` on such a page.
`examples/plugins/scheduling` shows the whole chain on its shifts list.
## 0.3.0
**Breaking.** Set `apiVersion: "0.3.0"`, and name a gate on every route and nav node.
### A session is a gate of its own
`session: true` takes any signed-in user, with no grant to hold — for a page whose data is the
visitor's own (their upstream account, their own tokens), where there is no distinction a permission
could name. An anonymous visitor is bounced to `/login` with the page as `return_to`, exactly as a
permission gate does.
Every route and nav node now names **exactly one** of `public: true`, `session: true` or
`permission: "<resource>:<action>"`, and a gate is spelled `true`:
- Naming **none** is refused. It used to mean public, so a forgotten gate published a page; it now
fails the boot instead.
- Naming **two** is refused, as before.
- Spelling one anything but `true` is refused — `public: false` and `session: "yes"` both set no gate
while reading as if they set one.
A section header gates nothing itself, so it takes `public: true` and lets each child decide; the
host still drops a header whose children all filtered out.
`Gate` is exported from `@plainpages/plugin-api`, and `Route` and `NavNode` extend it.
### Filter bars take a multi-select
The `filter-bar` partial gains a `multiselect` control — the same checkboxes on the same query
parameter as `chips`, but behind a button once the list is too long to lay on the bar. Config is
`{ name, legend?, note?, value?, options }`, and the panel says what a capped list left out.
### Fixed
- An identity carrying no email no longer yields a session at all. Login used to mint a JWT for one,
which every later request then rejected as anonymous — leaving the browser holding a dead cookie
and no way to tell why.
### Dependencies
- Node 24.20.0.
### Upgrading a plugin
1. Set `apiVersion: "0.3.0"`.
2. Give every route and nav node a gate. Anything that relied on omitting one was public — say
`public: true` outright.
A page that scopes rows to the signed-in visitor should join on `ctx.user.id`. An email address is
user-changeable and can be reassigned to someone else, who would then inherit the previous holder's
rows. The reference plugin's new `/scheduling/mine` page shows the shape.