feat: Implement BPC_PlatformServiceAbstraction for unified platform detection and SDK routing

- Added BPC_PlatformServiceAbstraction to centralize platform detection and SDK routing for achievements, cloud saves, and overlays.
- Updated dependencies across various systems to utilize the new platform service for consistent platform handling.
- Deprecated old platform enums in favor of a unified EPlatformFamily enum.
- Enhanced documentation for affected systems to reflect changes in platform handling and dependencies.

docs/blueprints/12-settings/149_BPC_RenderPipelineManager.md

@@ -8,7 +8,7 @@
 Central authority for render pipeline configuration. Reads `DA_RenderPipelineProfile` Data Assets to determine the appropriate rendering method (Lumen vs Baked Lightmass), shadow system (VSM vs CSM), upscaler (DLSS/FSR/TSR/PSSR), and mesh strategy (Nanite vs LOD) for the current platform and quality preset. Applies settings via UE5 console variables, coordinates with `BPC_PerformanceScaler` for runtime quality tier adjustments, and broadcasts pipeline changes so dependent systems (Planar Capture, Audio, UI) can adapt.
 
 ## Dependencies
-- **Requires:** [`DA_RenderPipelineProfile`](../14-data-assets/DA_RenderPipelineProfile.md) (render configs), [`SS_SettingsSystem`](105_SS_SettingsSystem.md) (saved quality preferences), [`GI_GameFramework`](../01-core/04_GI_GameFramework.md) (game phase for pre-load apply)
+- **Requires:** [`DA_RenderPipelineProfile`](../14-data-assets/DA_RenderPipelineProfile.md) (render configs), [`BPC_PlatformServiceAbstraction`](../01-core/150_BPC_PlatformServiceAbstraction.md) (central platform detection), [`SS_SettingsSystem`](105_SS_SettingsSystem.md) (saved quality preferences), [`GI_GameFramework`](../01-core/04_GI_GameFramework.md) (game phase for pre-load apply)
 - **Required By:** [`BPC_PerformanceScaler`](../10-adaptive/91_BPC_PerformanceScaler.md) (delegates CVar application), [`SS_PlanarCaptureManager`](../17-capture/138_SS_PlanarCaptureManager.md) (capture quality cap on pipeline change), [`WBP_SettingsMenu`](../06-ui/57_WBP_SettingsMenu.md) (Video tab quality controls)
 - **Engine/Plugin Requirements:** DLSS Plugin (optional), FSR Plugin (optional), XeSS Plugin (optional), GameplayTags, Enhanced Input
 
@@ -25,7 +25,8 @@ Central authority for render pipeline configuration. Reads `DA_RenderPipelinePro
 
 ## 1. Enums
 
-*See [`DA_RenderPipelineProfile`](../14-data-assets/DA_RenderPipelineProfile.md) for: `ERenderPipelineMethod`, `EShadowMethod`, `EReflectionMethod`, `EUpscalerMethod`, `EMeshStrategy`, `EPlatformFamily`.*
+*See [`DA_RenderPipelineProfile`](../14-data-assets/DA_RenderPipelineProfile.md) for: `ERenderPipelineMethod`, `EShadowMethod`, `EReflectionMethod`, `EUpscalerMethod`, `EMeshStrategy`.*
+*See [`BPC_PlatformServiceAbstraction`](../01-core/150_BPC_PlatformServiceAbstraction.md) for: `EPlatformFamily` (unified — all systems use this).*
 
 ### `ERenderPipelineChangeType`
 | Value | Description |
@@ -41,7 +42,7 @@ Central authority for render pipeline configuration. Reads `DA_RenderPipelinePro
 ### `SActivePipelineState`
 | Field | Type | Description |
 |-------|------|-------------|
-| `Platform` | `EPlatformFamily` | Detected platform |
+| `Platform` | `EPlatformFamily` | Detected platform (from BPC_PlatformServiceAbstraction) |
 | `ActivePreset` | `FName` | Currently applied quality preset name |
 | `PendingPreset` | `FName` | Queued preset awaiting reload |
 | `ActivePipelineProfile` | `DA_RenderPipelineProfile` | Currently loaded profile Data Asset |
@@ -81,7 +82,8 @@ Central authority for render pipeline configuration. Reads `DA_RenderPipelinePro
 - **Description:** Detects platform, loads the appropriate `DA_RenderPipelineProfile`, reads saved quality from `SS_SettingsSystem`, and applies initial pipeline settings.
 - **Flow:**
   1. Get Owner → Cast to PlayerController → cache
-  2. If `bAutoDetectPlatform`: call `DetectPlatform()` → set `DetectedPlatform`
+  2. Bind to `GI_GameFramework.GetSubsystem(BPC_PlatformServiceAbstraction).OnPlatformReady`
+  3. In handler: read `PlatformService.GetPlatformFamily()` → set `DetectedPlatform`
   3. Lookup `DA_RenderPipelineProfile` from `PlatformProfileMap` by `DetectedPlatform`
   4. If not found: log error, fallback to `PC_High` profile
   5. Read `SS_SettingsSystem.GetSettingFloat("QualityPreset")` → resolve preset name
@@ -173,7 +175,7 @@ Central authority for render pipeline configuration. Reads `DA_RenderPipelinePro
   3. Call `ApplyRenderConfig(PendingPreset, Config)`
   4. Broadcast `OnRenderPipelineChanged(PendingPreset, RequiresLevelReload)`
 
-#### `DetectPlatform` → `EPlatformFamily`
+#### `DetectPlatform` → `EPlatformFamily` *(deprecated — use BPC_PlatformServiceAbstraction.GetPlatformFamily() instead)*
 - **Description:** Auto-detect the current platform and GPU capability.
 - **Flow:**
   1. Check `UGameplayStatics::GetPlatformName()`: