Platform abstraction:
- New PlatformInfo autoload (extends Node, registered first in project.godot).
Owns all OS queries: power state monitoring (30s poll), memory (on demand),
file path resolution (user_data_dir, config_dir, benchmark_cache_path,
install_dir, executable_path, cache_dir, model_dir).
- PowerProfile enum (FULL/BATTERY/POWER_SAVER), power_profile_changed signal.
Uses OS.callv("get_power_info") to defer resolution to runtime — avoids
compile errors on Godot 4.6 headless builds without power API.
HardwareDetector refactor:
- check_ram() now delegates to PlatformInfo.refresh_memory() + free_memory_mb.
All direct OS.get_memory_info() calls removed.
- classify_power_state(int) and should_suspend_inference(int) delegate to
PlatformInfo for single source of truth.
- check_power_state() → {power_state, classification, should_suspend}.
- Battery suspend/resume: on PowerProfile.BATTERY, stores pre-battery pref and
sends ChangeSettings(false) to server. On FULL restore, sends ChangeSettings
with saved pref if it was enabled. inference_suspended member tracks state.
Settings dialog:
- is_ai_inference_suspended() / set_ai_inference_suspended(bool) — testable API
per Hoshe's test contract. Reads HardwareDetector.inference_suspended on open.
- Toggle now disabled when battery-suspended OR hardware fails (not only fail).
- get_ai_dialogue_label_text() wired to UIStrings ("settings.ai_dialogue_toggle")
instead of hardcoded string.
Cleanup:
- Deleted ai_dialogue_detector.gd and .uid (orphaned duplicate, dead code).
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>