# Changelog v0.5.13 - 2026-06-04

### Added
- **Provider dropdown with SVG logos + health indicators** — The native `<select>` for provider filtering has been replaced by a custom dropdown that renders each provider's SVG icon + text wordmark (same `ProviderLogo` component used in the model table) alongside a color-coded health indicator dot:
  - 🟢 Green = API key configured and at least one model is UP
  - 🔴 Red = API key set but models are DOWN or have auth errors
  - ⚪ Gray = No API key configured
  - Colors adapt for both dark and light themes for readability.
  - Scrollable list with keyboard support (Escape to close, click-outside to dismiss).
- **Collapsible filter groups** — Tier, Status, Verdict, and Health filter chips are now collapsible dropdown triggers (like the Ping selector). Shows `LABEL: value` as a compact button; click to expand the chip row. Reduces visual clutter while keeping full chip sets on demand.
- **Playground direct provider routing** — The playground can now chat directly with any "UP" model (not just via the router daemon). Select a specific model → the request goes straight to the provider endpoint. Falls back to daemon for `fcm` auto-router. Clear error messages when no API key is configured for the selected provider.
- **Playground daemon start/stop controls** — When the router daemon is offline, the Playground now shows a start button instead of a dead panel. One-click to launch the daemon and begin chatting.
- **"How the FCM Router works" help section** — New section in the Help modal (and TUI help overlay) explaining the smart router, pre-prompt, probe mechanism, circuit breaker states, failover order, auto-heal, and rate limits in plain English.
- **Router circuit breaker friendly labels** — Circuit state badges in the Router dashboard now show human-readable labels (`Healthy`, `Down`, `Recovering`, `Auth error`) instead of raw internal names (`CLOSED`, `OPEN`, `HALF_OPEN`).
- **Next-ping countdown with millisecond precision** — The filter bar countdown now shows `3.58s` format instead of rounding to whole seconds, matching TUI parity.

### Changed
- **FilterBar refactor** — Replaced the inline `ChipRow` component with a reusable `FilterGroup` component that handles collapsible open/close state, click-outside detection, and keyboard dismiss. The Ping selector was already using this pattern; now all filter groups use it.
- **Provider data aggregation** — The `providers` prop passed to FilterBar now includes `hasKey` and `anyUp` boolean flags computed from the live model data, enabling the health indicator in the provider dropdown.
- **Provider dropdown replaces native `<select>`** — The `<select id="provider-select">` and its CSS (`.providerSelect`) are removed from FilterBar. The new `ProviderDropdown` component provides SVG logo rendering, health dots, and a scrollable menu that's consistent with the rest of the filter bar UX.

### Fixed
- **Playground no longer dead when router offline** — Previously the Playground showed a static "Router offline" message with no action. Now it offers a start button and can also chat directly with providers that have working API keys.