Establish UE 5.8 known-good baseline with Batch 1 archaeology docs.

Initialize Git with LFS for binary assets and add standard Unreal Engine .gitignore/.gitattributes.

Co-authored-by: Cursor <cursoragent@cursor.com>

Documentation/Archaeology/12-Pickups-And-Effects.md

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+# 12 — Pickups and Effects
+
+**Status: Draft**
+
+- **Scope (Batch 1 seed):** Native `ARIREffectActor` mechanism + discovered Blueprint subclass paths. No overlap/authority graph inspection yet.
+- **Inspection method:** Native C++ + search_subclasses.
+- **Last updated:** 2026-07-16
+- **Current phase:** Phase 1 — Static Architecture
+- **Last completed pass:** Pass 2 (Batch 1)
+- **Next pass expected to contribute:** Batch 4 Pass 10
+
+## Draft tracking
+
+### Completed sections
+- ApplyEffectToTarget GE application path
+- Instant/Duration GE class properties
+- Blueprint child paths for potions / orange slice / mana crystal
+
+### Pending sections
+- Per-pickup overlap, authority, destroy/respawn, UI notify
+- Classification: GE vs direct DEPRECATED var mutation vs hybrid
+- Gold / stamina pickups if present
+
+### Evidence still required
+- Connected Blueprint graphs on each item BP
+- Whether `GetAbilitySystemComponent` succeeds on player vs enemy targets
+
+---
+
+## Native mechanism (Observed Implementation)
+
+`ARIREffectActor::ApplyEffectToTarget`:
+
+1. `UAbilitySystemBlueprintLibrary::GetAbilitySystemComponent(TargetActor)`
+2. Early-out if null
+3. MakeOutgoingSpec(GEClass, 1.f) + ApplyGameplayEffectSpecToSelf
+
+**Inferred:** Intended pickup path is **Gameplay Effect** based for subclasses of this actor. Confirmation requires Blueprint graphs.
+
+**Blueprint subclass seeds:**
+
+| Asset |
+|-------|
+| `/Game/_Main/Blueprints/Items/Food/BP_OrangeSlice` |
+| `/Game/_Main/Blueprints/Items/Potion/BP_HealthPotion` |
+| `/Game/_Main/Blueprints/Items/Potion/BP_ManaPotion` |
+| `/Game/_Main/Blueprints/Items/Potion/BP_ManaCrystal` |
+
+Calibration also listed GE assets such as `GE_PotionHeal`, `GE_PotionMana`, `GE_HoT_Small`, `GE_MoT_Small` under `/Game/_Main/Blueprints/Game/GameSystems/GAS/GameplayEffects/`.