v0.5.0

The timeline gets a second view: Tracks, one lane per layer on a shared time
axis. The Settings tab now says where each value came from and flags overrides
the config has since moved past. Timeline events can be linked to, a reloaded
panel keeps what was recorded, and both the panel and the in-page overlay open
source links in the editor you picked.

Added

• Tracks view for the timeline. A List | Tracks switch in the Timeline
  toolbar draws the recording as one horizontal lane per layer on a shared time
  axis, so concurrency, gaps and rhythm are visible: which layers fire
  together, how a click lines up with the update it caused. Overlapping spans
  stack, so an update tick reads as performUpdate with its phases beneath it,
  and marks never get narrower than 2px. Wheel zooms around the pointer, drag
  pans, double-click fits the whole recording, and a fitted view follows the
  live edge while recording. A chip strip picks which lanes to draw; it is a
  view filter, not the capture toggle. Both views share one selection and one
  detail pane.
• Where each setting came from. Settings rows read like "Zed (env)",
  "VS Code (default)" or "Cursor (option)". An overridden row names the
  baseline it replaced and has its own reset. An unknown
  LIT_PLUGIN_SOURCE_OVERLAY_EDITOR value now logs a warning and falls back to
  the default.
• A hint when the config moved under an override. An override remembers
  the value it was made against. If that config value has since changed, the
  row says "Config changed since you overrode this: was X, now Y", with Reset
  (let the new config apply) and Keep (hide the hint, keep the override).
• Links to timeline events. Selecting a row puts #event=<id> in the
  hash; opening that link selects the span and scrolls it into view, in a live
  session or an exported snapshot. An id the buffer no longer holds opens the
  Timeline with nothing selected.
• Temporal values in the inspector preview as their kind plus ISO form,
  e.g. Temporal.PlainDate(2026-09-29), instead of an empty object. This works
  with native Temporal and with polyfills.
• The standalone lit-devtools dev server can be fed from a live page. A
  page calls connectToDevServer() (from @oddsquad/vite-plugin-lit/connect.js)
  to send its tree, inspector and timeline traffic to the server's panel over
  devframe RPC. lit-devtools dev --no-auth skips the one-time code. Pages not
  served by Vite, and cross-origin pages, are not covered yet.

Changed

• The timeline's element and regex filters apply to Tracks too, so
  switching views mid-investigation no longer brings back everything you
  filtered out. A filter that hides the selected mark keeps its detail pane
  open, as the List always did.

Fixed

• A reloaded live panel keeps the recorded events. Reloading or first
  opening the panel mid-session used to show "No events recorded." while the
  dev server still held them, and a cold #event= link could not resolve. The
  panel now fills itself from the server's buffer when it connects, without
  duplicates, and events you cleared stay cleared across a reload.
• Source links open in the editor you chose. The editor picked through
  sourceOverlay.editor, LIT_PLUGIN_SOURCE_OVERLAY_EDITOR or the Settings
  tab only shaped the overlay's URL scheme; clicks from the panel and the
  in-page overlay let launch-editor guess, so picking Cursor could open VS
  Code. Both now pass the chosen editor (vscode, cursor, zed, idea).
  Windsurf, custom editors and projects that never named one still
  auto-detect.
• Exported snapshots contain the whole event buffer, not the last 50
  events, so every row in an export can be linked to.
• A linked timeline row scrolls into view on a cold open instead of
  leaving the list pinned to its newest row.
• The panel has a favicon, so opening it in its own tab no longer logs a
  404 for /favicon.ico.