Implement IAudioStrategy interface consolidation

[danieljsinclair]

Issue Type

Implementation - Architecture Refactoring

Severity

High - Critical path for Option B implementation

Problem Statement

Current architecture has IAudioMode and IAudioRenderer as separate coupled interfaces, violating SRP and creating tight coupling. Need to consolidate into single IAudioStrategy interface.

Current State

• IAudioMode (11 methods) - audio mode behavior
• IAudioRenderer (4 methods) - rendering strategy
• Coupled pairs: ThreadedAudioMode + ThreadedRenderer, SyncPullAudioMode + SyncPullRenderer
• Cannot swap renderers independently
• SRP violations: Each mode owns renderer creation in createContext()

Target State

Single IAudioStrategy interface combining lifecycle + rendering responsibilities:

• getModeName() / getName() - diagnostics
• updateSimulation() - simulation updates
• generateAudio() / render() - audio rendering
• startAudioThread() / configure() - lifecycle
• createContext() - factory pattern
• AddFrames() - buffer management

Implementation Tasks

1. Design IAudioStrategy interface with clear method contracts
2. Create IAudioStrategy.h with proper documentation
3. Define acceptance criteria for implementations

Acceptance Criteria

• IAudioStrategy.h interface created with clear method documentation
• Interface combines lifecycle + rendering responsibilities (no splitting)
• All methods have clear contracts and documentation
• Interface follows SOLID principles (single responsibility, open/closed)
• No coupling to specific implementations
• Interface location: src/audio/IAudioStrategy.h

Testing Requirements

• Interface can be mocked for unit tests
• Clear injection points for DI
• No circular dependencies introduced

Related Issues

• DECISION NEEDED: Choose architecture direction - Pull model vs NEW architecture #12 - Architecture decision: Option B confirmed
• Next ticket: Consolidate ThreadedStrategy implementation
• Next ticket: Consolidate SyncPullStrategy implementation

References

• ARCHITECTURE_FILE_CLASS_AUDIT.md - SRP violations identified
• AUDIO_MODULE_ARCHITECTURE.md - Phase 6 consolidation plan