v0.2.0

Added

• Machine filter in the dashboard header (renders only when ≥2
  machines exist), threaded through session / totals / project filters.
• New shared IconDropdown portal-popover component used by the header
  filters and (now) the theme picker.
• npm run dev:web (Vite) and npm run dev:all (concurrent API + Vite)
  scripts for HMR'd development of the dashboard.
• Automated release workflow: merging a version-bump PR to main
  publishes to npm (with provenance), tags v<version>, and creates a
  matching GitHub Release.

Changed

• Header collapses into a single h-8 row: agent / machine / time
  selectors, tabs, and refresh share one bar; the standalone "Token
  Monitor" title is removed (the TOKMON v0.x.y eyebrow stays).
• ThemePicker migrated onto IconDropdown, removing ~140 lines of
  duplicated portal/menu code.

Fixed

• selectedProject now resets against the filtered project set, so a
  project that disappears under the current agent/machine combination
  cannot silently keep narrowing the visible session list.

Removed

• Stray @ttthree/tokmon self-dependency that pinned the package to a
  pkg.pr.new preview URL.