Add haptics example documentation for Project Void controller feedback

- Introduced comprehensive guide for setting up controller haptics and force feedback.
- Detailed directory structure for haptic profiles and creation steps for DA_HapticProfile instances.
- Included platform-specific configurations for Xbox and PS5 DualSense adaptive triggers.
- Outlined wiring of BPC_HapticsController to various gameplay systems and events.
- Provided accessibility integration options and testing checklist for haptic functionality.

docs/game/GAMEINDEX.md

@@ -583,11 +583,12 @@ Each game asset proves a specific framework system works. Below: every framework
 | 102 | BPC_ProgressStatTracker | Total playtime, collectibles found, enemies killed |
 | 103 | SS_AchievementSystem | "First Light" (flashlight), "Untouchable" (no-damage run) |
 
-### 12-settings (Settings — 2 systems)
+### 12-settings (Settings — 3 systems)
 | # | Framework System | Demonstrated By |
 |---|----------------|----------------|
 | 104 | BPC_AccessibilitySettings | Subtitle toggle, colorblind mode, controller remap |
 | 105 | SS_SettingsSystem | Audio/Video/Controls persistent settings |
+| 148 | BPC_HapticsController | Controller vibration: damage, weapon fire, heartbeat, footsteps, scares. Attached to PC_HorrorController |
 
 ### 13-polish (Polish — 9 systems)
 | # | Framework System | Demonstrated By |
@@ -691,6 +692,7 @@ Each `docs/game/` file explains how to build a specific section of the prototype
 | [`save-checkpoints.md`](save-checkpoints.md) | Save system, checkpoints, death loop, void space, persistence | 15 |
 | [`polish-loading-credits.md`](polish-loading-credits.md) | Tutorials, loading screen, credits, debug, analytics | 19, 20 |
 | [`state-gating-examples.md`](state-gating-examples.md) | DA_StateGatingTable game-specific rules | 14 |
+| [`haptics-example.md`](haptics-example.md) | Controller haptics — damage, weapons, heartbeat, scares, platform tuning | 5, 10, 13, 14 |
 
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