Add run dashboard and encounter tracking interface

Run list at /runs shows all runs with status badges. Run dashboard at
/runs/:id displays stats, active team, graveyard, and rule badges.
Encounter tracking at /runs/:runId/encounters shows route list with
status indicators, progress bar, filters, and a modal for logging or
editing encounters with pokemon picker.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

frontend/src/pages/index.ts

@@ -1,4 +1,5 @@
 export { Home } from './Home'
 export { NewRun } from './NewRun'
-export { Dashboard } from './Dashboard'
-export { Encounters } from './Encounters'
+export { RunList } from './RunList'
+export { RunDashboard } from './RunDashboard'
+export { RunEncounters } from './RunEncounters'