## 1. Specification

- [x] Add requirements for minimum uninterrupted speaker samples.
- [x] Add requirements for optional pyannote secondary validation.

## 2. Tests

- [x] Cover sample collection waiting for the configured minimum uninterrupted speech duration.
- [x] Cover sample collection resetting when another speaker interrupts.
- [x] Cover pyannote sample validation rejecting multi-speaker samples.
- [x] Cover pyannote match validation rejecting an Azure-confirmed match.
- [x] Update existing live matching tests to configure short samples where they intentionally exercise fast matching.

## 3. Implementation

- [x] Add speaker identification configuration for minimum sample duration and pyannote validation.
- [x] Refactor live sample collection to accumulate continuous same-speaker spans.
- [x] Add pyannote diarization reuse for speaker identity validation.
- [x] Add secondary validation into the identity matching pipeline.

## 4. Verification

- [x] Run focused speaker/transcription tests.
- [x] Run `openspec validate harden-speaker-samples-and-pyannote-validation --strict`.