v0.13.8

FreeLLMAPI v0.13.8 stops the key checks LLMTR refuses and adds Free.ai Kokoro speech.

## Keys

- **LLMTR keys no longer show a validation error.** LLMTR refuses automated key checks, so FreeLLMAPI no longer sends them. That removes the standing "rejected the key-validation probe" message and the repeated probes that LLMTR can suspend an account for. An LLMTR key shows as unchecked until it serves its first request, then turns healthy. Any key that has not been checked yet now also turns healthy on its first successful request. Thanks @kkvark for the report and @suantea for tracing it. (#1459, #1471)

## Providers

- **Free.ai** speech: the Kokoro text-to-speech model through `/v1/audio/speech`, with standard OpenAI voice names mapped to Kokoro voices. (#1467)

## Updating

Desktop users on v0.13.5 or later can update from inside the app: ⋯ → **Check for updates**. Docker: `ghcr.io/tashfeenahmed/freellmapi:v0.13.8`. The `latest` tag also points to this release.

Existing keys and profiles are retained. This release has no database migrations.

[Full changelog](https://github.com/tashfeenahmed/freellmapi/compare/v0.13.7...v0.13.8)

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