Surfaces the per-container on-disk footprint the c0re sampler now
reports as `disk_bytes` on /api/container-resources (state dir +
container writable rootfs, shared nix store excluded; sampled
out-of-band every few minutes). Renders bytes→human via the existing
cloadFmtBytes helper, with an em-dash until the first sample lands
(disk_bytes is null then). Pairs with the hive-c0re sampler half.
Clicking "update & rebuild" (and cancel / respawn / purge) on /core.html
navigated to the bare `ok` response page instead of submitting async. The
C0R3 page (split out of the dashboard) carries `data-async` forms but its
bundle never had the global submit interceptor — that handler lived inline
in tabs.js, so only the dashboard bundle had it. The forms POSTed natively
and the browser followed the response.
Fix: lift the `data-async` submit handler out of tabs.js into a shared
`bindAsyncForms(onSuccess)` in common.js (which already owns the `form`
helper that builds these forms), and call it from both pages:
- tabs.js: `bindAsyncForms(() => refreshState())` — behaviour-preserving
(same handler, now imported).
- core.js: add a `refreshState()` (re-fetch /api/state + re-render) used
for the cold load and as the post-submit refresh, and call
`bindAsyncForms(() => refreshState())` at boot.
Forms with `data-no-refresh` (e.g. meta-update, which gets its update via
the meta SSE events) skip the refresh, same as before.
Carves the dashboard's SYST3M tab content out into a standalone page at
/core.html, reached from the H0M3 hub, with a createTabStrip sub-tab
strip (default = Rebuild Queue): rebuild queue, meta inputs, kept state,
container load. Same minimal-chrome standalone-page pattern as
/logs.html (← home back-link + sub-tab nav).
This is the additive first step: the new page is its own esbuild bundle
that cold-loads /api/state and subscribes to /dashboard/stream for the
same live rebuild_queue_changed / meta_inputs_changed / meta_update_running
/ tombstones_changed events the dashboard uses. The four section
renderers are ported from tabs.js; the dashboard's SYST3M tab is left in
place and untouched, so this PR cannot regress the existing dashboard.
Removing the now-duplicate SYST3M tab + de-duplicating the renderers
(into a shared module) + splitting the shared section CSS out of
dashboard.css is the deliberate follow-up.
core.css imports dashboard.css wholesale (transitional) so the ported
sections render identically; dashboard.css does not import common.css so
nothing double-loads. build.mjs gains core.js / core.css / core.html
entries; no Rust change (hive-c0re serves dist/ via ServeDir, and the
/dashboard/stream + /dashboard/history routes are registered ahead of
the fallback).
Page name "C0R3" is a placeholder pending the operator's pick — trivially
renamed (the /core.html URL + the C0R3 label).
