v0.3.0

The DevTools half of the plugin was rebuilt on
devframe, and most of what follows
falls out of that: the panel is no longer tied to Vite DevTools, and the same
data it shows is reachable by a coding agent over MCP.

Added

• The panel runs on devframe. The bespoke transport is gone. The panel
  works docked in Vite DevTools, in its own tab, or standalone from the CLI.
• lit-devtools CLI. lit-devtools dev serves the panel without a Vite
  dev server of its own; lit-devtools mcp exposes the panel's data to an MCP
  client over stdio, discovering a running dev server on its own.
• MCP tools for agents — list the component tree, read recent timeline
  events, start and stop a recording, and read why a module fell back to a full
  reload instead of a hot patch.
• Updates tab. The timeline reads as an explainer for a single update:
  what changed, which components re-rendered, and what it cost.
• Session export. A recorded session can be written out as a static copy of
  the panel — shareable, no dev server needed to open it.
• Deep links. Panel views are addressable, so a link opens the tab, the
  selected element, or an exported snapshot at the right place.
• Flash on update. An opt-in fading outline over every element that
  finishes an update, with an optional ramp colouring it by updates per second.
• Ambient types for virtual:lit-plugin/timeline, shipped in
  @oddsquad/vite-plugin-lit/client alongside the CSS query declarations.
  Following the custom-layers guide no longer means silencing TS2307.
• Documentation site at https://oddcelot.github.io/vite-plugin-lit/, and
  a CI workflow that type checks, lints, tests and builds every push.

Changed

• Panel settings persist per developer through devframe's settings store
  instead of per browser, so they follow you across browsers and survive
  clearing site data. localStorage stays as the page's boot-time cache.
• Source links open through the shared open-in-editor service and resolve
  against the Vite root.
• The docked panel draws its hover outline over a direct page channel rather
  than routing through the dev server.
• Tooling moved to Vite+ (oxfmt, oxlint, tsgolint); dependencies updated to
  TypeScript 7, Vite 8.3, es-module-lexer 3 and magic-string 1.
• The README is a front door now; the long-form guides live on the docs site.

Fixed

• virtual:lit-plugin/timeline broke vite build. Both hooks lived on the
  serve-only plugin, so nothing claimed the specifier during a build and the
  bundler failed on a module the developer never wrote. It now resolves in dev
  and build alike, stubbing itself out in any build.
• The dev-server endpoints reject cross-site requests.
• Source metadata is injected in the component class's own scope, so it can no
  longer reference a class that isn't in scope.
• The DevTools element watch survives a hot patch; updated() is resolved
  lazily rather than captured once.
• Recording state is synced to a page runtime when it connects, so a reload
  mid-recording keeps recording.
• recent-events works when called with no arguments, and the documented MCP
  endpoint path matches the one the server serves.