Amplifier Unified 0.34.6

Spend less time saving unchanged conversation history

Changes

• Reduce delays around file reads and app actions in long conversations by reusing verified saved execution history when its complete current content is unchanged. Edited history still takes the normal save path, and each reused record is checked against its saved file and index.
• Keep failed-save recovery, chat replacement and retirement, corruption detection and existing memory limits intact. This reduces repeated history-processing work without skipping permission checks or discarding saved actions.