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/06-PartialGASArchitecture.md

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+# 06 — Partial GAS Architecture
+
+**Status: Draft**
+
+- **Scope (Batch 1 seed):** Native GAS scaffolding — ASC ownership, AttributeSet, empty GameplayAbility base, EffectActor GE application, default-attribute property, tags from config. Full GE CDO / cue / grant-path inventory deferred.
+- **Inspection method:** Native C++ read; AttributeSetToolset not re-run this batch (calibration prior); GameplayTags from DefaultGameplayTags.ini; subclass search for URIRGameplayAbility.
+- **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 7
+
+## Draft tracking
+
+### Completed sections
+- ASC ownership split (player PlayerState vs enemy character)
+- Replication modes
+- Actor-info initialization
+- Attribute inventory + constructor defaults
+- URIRGameplayAbility empty + no subclasses
+- EffectActor ApplyEffectToTarget mechanism
+- Project gameplay tags from config
+
+### Pending sections
+- Default attribute GE CDO modifiers per character
+- Gameplay Cue inventory
+- Ability granting paths in Blueprints
+- Tag referencers
+- Runtime ASC state (PIE-gated)
+
+### Evidence still required
+- Whether BP_PlayerState assigns/applies `DefaultAttributesGameplayEffect`
+- Whether any Blueprint grants `URIRGameplayAbility` or engine GA classes
+
+---
+
+## Distinctions (Batch 1)
+
+| Layer | Status | Evidence |
+|-------|--------|----------|
+| GAS infrastructure | Present | ASC, AttributeSet, IAbilitySystemInterface, EffectActor |
+| GAS data | Partially present | Tags in INI; GE assets exist (calibration); DefaultAttributes property |
+| GAS runtime abilities | Not observed | No URIRGameplayAbility subclasses; calibration: no GA assets |
+| Legacy BP abilities | Not inspected this batch | Calibration: Server_Ability_*, UseAbility* on Paladin |
+
+---
+
+## Ownership and init
+
+**Player (Observed Implementation):**
+
+- ASC + AttributeSet created on `ARIRPlayerState`
+- ReplicationMode **Mixed**; NetUpdateFrequency 100
+- `ARIRPlayerCharacter::InitAbilityActorInfo`: Owner=PlayerState, Avatar=Character; called from PossessedBy and OnRep_PlayerState
+
+**Enemy (Observed Implementation):**
+
+- ASC + AttributeSet created on `ARIRBaseEnemyCharacter`
+- ReplicationMode **Minimal**
+- BeginPlay: InitAbilityActorInfo(this, this)
+
+**Interface contradiction:** `ARIRBaseCharacter::GetAbilitySystemComponent` always uses PlayerState — enemies may not expose ASC through `IAbilitySystemInterface` / `UAbilitySystemBlueprintLibrary::GetAbilitySystemComponent`. **Issue:** Incomplete Refactor; **Requires Runtime Inspection**.
+
+---
+
+## Attributes
+
+`URIRAttributeSet`: Health, MaxHealth, Mana, MaxMana, Stamina, MaxStamina — all replicated with OnRep notify.
+
+Constructor inits Health/MaxHealth/Mana/MaxMana only; Stamina/MaxStamina not Init'd in native.
+
+`DefaultAttributesGameplayEffect` on PlayerState: declared, **not applied in native**.
+
+---
+
+## Abilities
+
+`URIRGameplayAbility`: InstancedPerActor only. **No project subclasses** (search_subclasses).
+
+**Conclusion (Observed Implementation):** No project-defined UGameplayAbility subclasses, Gameplay Ability assets, or
+static ability-granting paths have been observed so far.
+
+Current evidence supports that the playable abilities have not yet been
+converted into discrete Gameplay Ability implementations. This must be
+reconfirmed during the dedicated GAS and Blueprint passes.
+
+---
+
+## Effects
+
+`ARIREffectActor::ApplyEffectToTarget` applies Instant/Duration class via ASC MakeOutgoingSpec + ApplyGameplayEffectSpecToSelf. Overlap/authority logic expected in Blueprint children (Batch 4 Pass 10 / doc 12).