Import art/VFX asset packs + game-feel systems; normalize texture extensions to lowercase for LFS

Add BefourStudios SciFi environment packs, Gabriel Aguiar VFX, and the
ShaderCrew Toon Shader embedded packages, plus combat/enemy/wave/death
gameplay systems and supporting vault docs/screenshots.

Rename 11 vendor textures from uppercase .PNG/.HDR to lowercase so the
case-sensitive Git LFS filters (*.png/*.hdr) match on case-sensitive
filesystems (Linux CI, case-sensitive macOS), not just locally where
core.ignorecase=true masks the gap. Each .meta moved with its asset so
GUID references are preserved. All ~1000 binaries tracked via LFS.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

Docs/Vault/06_Roadmap/Milestones.md

@@ -16,6 +16,7 @@ permalink: gamevault/06-roadmap/milestones
 | **M3 — Data-driven abilities & modifiers** | Ability **and** character stats authored in ScriptableObjects, baked to DOTS **blob assets**; runtime **flat + % modifier** stacks (upgrades/buffs) → effective stats, server-authoritative + prediction-correct. Pattern slice: refactor the current projectile ability + 1–2 sample abilities onto the data model. | ✅ Done 2026-05-31 — runtime-validated on 6.4.7: blob DB baked into both worlds; data-driven base + replicated `StatModifier` ghost buffer → **identical effective stats on server & owner-predicted client** (held under tick-batching); data-only ability swap; real pickup grant; EditMode 38/38. Blob DB + replicated modifier buffer + every-tick effective recompute — [[DR-004_M3_DataDriven_Abilities_Modifiers]], [[2026-05-31_M3_Data_Driven_Abilities]]. |
 | **M4 — Co-op** | 2–4 players; client-hosted listen-server (Direct IP/LAN now, Unity Relay later) | ✅ Done 2026-06-02 — **LAN slice + multi-client validated**: no-auto-connect `ConnectionConfig` + request-component host/join, editor auto-host + thin clients, deterministic ring spawn; 3 clients (1 real + 2 thin) connect→spawn (distinct slots)→replicate→clean disconnect; `ConnectionUI` for builds; EditMode 45/45. **Two controllable characters in-game confirmed 2026-06-02 via Unity Multiplayer Play Mode** (extra virtual player; full connection handshake not exercised end-to-end, but in-scene co-op looks good). **Unity Relay + real two-build LAN join deferred** — [[DR-005_M4_Connection_Model_Direct_IP]], [[2026-06-01_M4_LAN_CoOp_And_Classification_Fix]]. |
 | **M5 — Home base + physics** | Persistent base subscene streaming + Unity Physics in the predicted loop | 🚧 In progress 2026-06-01 — **physics-in-prediction slice done + runtime-validated** on 6.4.7: player is a velocity-driven dynamic Unity Physics body in the predicted loop (built-in `CapsuleCollider`+`Rigidbody` bake; `PhysicsVelocity` auto-replicated), collides with baked static walls (stops at the surface, no tunnel/climb-over), planar-pinned, **server == client** with no desync; EditMode 51/51. **Base subscene streaming deferred** to a later pass — [[DR-006_M5_Physics_In_Prediction]], [[2026-06-01_M5_Physics_In_Prediction]]. **M5b (same day): player movement re-founded on the Unity Character Controller package** (`com.unity.charactercontroller` 1.4.2) — kinematic collide-and-slide, owner-predicted, data-driven speed; replaces the dynamic-Rigidbody mover (keeps the DR-006 predicted-physics infra). Runtime-validated (collide-and-slide, planar, server==client, CharacterInterpolation predicted-only); EditMode 47/47 — [[DR-007_M5b_Character_Controller_Package]], [[2026-06-01_M5b_Character_Controller]]. **Base-layer done 2026-06-02 + runtime-validated:** home base = baked ghost-free `BaseAnchor` + locked deterministic planar build-grid (`BaseGridMath`, 1.0u × 32²; M6 builds on it) + player spawn re-rooted onto the anchor + one **shared-storage ghost** (ownerless interpolated; deposit/withdraw via server-authoritative `IRpcCommand`; **server == client** buffer). EditMode 62/62. **Subscene split (base/expedition) + disk persistence still deferred** — [[DR-008_M5_HomeBase_BaseLayer_Storage]], [[2026-06-02_M5_HomeBase_BaseLayer]]. |
+| **M5.5 — Game feel & identity** | Bridge "tech-demo → game": the **Husk** enemy (server AI, interpolated ghost), player death/respawn, combat juice (damage numbers/VFX/SFX/camera shake), a core HUD, and a sci-fi look pass — under the new fiction ([[Identity]], sci-fi frontier colony) | ✅ Done 2026-06-02 — runtime-validated on 6.4.7: Husks spawn(6)+replicate+chase+strike; death→respawn loop; HUD (health/cooldown/threat/downed); emissive dark-sci-fi look. EditMode **74/74**. ctx7-verified APIs. **Deepened same day:** auto-target on Husks, replicated respawn-invulnerability, and a `WaveSystem` threat director (escalating waves of 3 Husk variants — Grunt/Swarmer/Brute) replacing the flat sustain — runtime-validated (wave 1→2 escalation 4→6, distinct maxHP 30/15/80). [[DR-009_GameFeel_Identity_FirstBlood]], [[2026-06-02_GameFeel_Identity]], [[2026-06-02_GameFeel_Deepening]] |
 | **M6 — Build/placement** | Server-authoritative grid build placement via RPC | ⬜ |
 | **M7 — Automation** | Self-running tick-based production chains (deterministic offline catch-up) | ⬜ |