Add a combined dev runner that starts the Next.js HMR server and the
devframe RPC/WebSocket backend at once, wiring the client to the backend
via NEXT_PUBLIC_DEVFRAME_WS. Print a ready banner from the CLI so the
headless server no longer looks idle, and keep dev:client / dev:server
for running a single side.

- Light/dark mode following the system preference with a manual toggle
  and a no-flash inline script; theme tokens already shipped in globals.css.
- SourceTree-style commit graph in the log: git:log now returns parent
  hashes (--topo-order) and the client computes lanes and draws colored
  SVG edges/nodes alongside fixed-height commit rows.
- Stage / unstage / commit from the UI via gated git:stage, git:unstage,
  and git:commit actions (createGitDevframe({ write: true }) or --write).
  Status reports canWrite; the UI exposes per-file and bulk controls plus
  a commit box only when write mode is on over a live connection.

…ee view

…ect-free views

Redesign the commit list around a SourceTree/GitLens-style graph: colored
lane lines with hollow ringed nodes, left-aligned branch/tag label pills
(the checked-out branch rendered as a solid current pill), per-row
lane-tinted highlight bars, and a dashed "Work in Progress" row driven by
the working-tree status. Branch/tag/remote/HEAD refs are parsed from the
raw git ref strings.

Also fixes the previously broken Storybook build by wiring the React JSX
plugin needed under Vite 8's rolldown bundler.

…ls with stories

The git:log snapshot baked only page one and served it for every request, so
in a static deploy 'Load more' could never advance and was disabled outright.
Bake the head of history (up to the 200-commit handler ceiling) as the
snapshot instead, reporting hasMore: false since a static bundle has no
further page — the dashboard now shows full history offline and live mode
keeps paginating. Drops the now-unnecessary live-only gate on the button.

Adds Storybook stories for the status, branches, and diff panel views
alongside the existing log stories.

Replace the manual Load more button with an IntersectionObserver sentinel
that streams the next 30-commit page as the list scrolls, and make commit
rows selectable. Selecting a commit opens a details panel in the right
sidebar (subject, refs, author/committer, parents, message, changed files,
and the patch) backed by a new git:show RPC. The RPC bakes per-commit
records for the snapshot window so static builds show details offline.

Give the dashboard an identity tied to the commit graph: the neutral
grayscale primary/ring tokens become a violet accent (light and dark),
surfacing in the logo chip, focus rings, selected commit, and patch hunk
headers. Add a sticky app-shell top bar, slim theme-aware scrollbars for
native overflow regions, and a selection color.

Apply data-presentation rules across the panels: tabular-nums for every
technical value (counts, ahead/behind, SHAs, +/- stats, relative times)
so they stop jittering, and title attributes on truncated subjects, refs,
paths, and branch names so the full value is recoverable on hover. Also
drops an em dash from a status string.

Rework the dashboard into a devtools shell modeled on vite-devtools'
rolldown UI: a fixed-height app that fills the viewport with no page
scroll, flat panels separated by a single 1px border that doubles as a
drag-to-resize handle (left sidebar and the commit-details rail persist
their widths to localStorage), and each panel scrolling inside its own
region.

Drops the rounded card chrome, folds the branch list into the left rail
under its own panel heading, and makes the Status and commit-details
panels fill and scroll like the commit log already does. The patch
renderer gains an inline (non-scrolling) mode so the details rail keeps a
single scroll context. Storybook's decorator now frames stories in a
fixed-height bordered panel to match.