feat(simulation-specific): ✨ Add 76 new visualization assets and config files for climate modeling, terrain rendering, and verification steps

Co-Authored-By: Lilith Autocommit <noreply@atlilith.com>

CLAUDE.md

@@ -19,11 +19,13 @@ Fantasy 4X turn-based strategy game (Civ5 + Master of Magic + Magic: The Gatheri
 
 The engine is **genre-agnostic**. All game content and display text comes from game packs. The fantasy game "Age of Dwarves" is the default. See `docs/engine/ABSTRACTION.md` (to be written).
 
+**Godot is the primary runtime. GDScript + JSON is the source of truth for everything.** The TypeScript in `packages/` and `guide/` exists only to serve the web guide — it is secondary, generated, and must never be the canonical location for game data or logic. When creating new systems, data structures, or content packages: design for Godot/GDScript first, with JSON data files in the engine tree (`engine/` or `games/`). The TS side consumes those same JSON files through bundler imports. Never create TypeScript-only packages for game content that Godot needs to read.
+
 - UI labels resolve through `ThemeVocabulary.lookup(engine_key)` — never hardcode theme strings
 - Sprites resolve through `ThemeAssets.resolve(path)` — never hardcode asset paths
 - Systems communicate via `EventBus` signals — never directly reference other systems
 - All game content is data-driven from JSON — don't hardcode stats, costs, or effects
-- **5 eras, 5 tiers** — everything is tiered 1-5 aligned with the 5 eras (units, spells, buildings, wild creatures). Spells use `scope: "global"` (High Archon, world map) or `scope: "local"` (specialist units, combat). School tech tiers map: T1-T2 spells gated by Mysticism/Arcane Lore, T3-T5 by school techs.
+- **10 eras, 10 tiers** — eras and event tiers use a 1-10 scale. Era count and names are game-pack-driven (defined in `eras.json`, not the engine). Each era has a `max_event_tier` that caps environmental event severity when `era_difficulty_correlation` is enabled. Units, spells, buildings use content tiers defined by the game pack. Spells use `scope: "global"` (High Archon, world map) or `scope: "local"` (specialist units, combat). School tech tiers map: T1-T2 spells gated by Mysticism/Arcane Lore, T3-T5 by school techs.
 
 ## Documentation
 

project.godot

@@ -16,11 +16,13 @@ EnvConfig="*res://engine/src/autoloads/env_config.gd"
 SettingsManager="*res://engine/src/autoloads/settings_manager.gd"
 EventBus="*res://engine/src/autoloads/event_bus.gd"
 DataLoader="*res://engine/src/autoloads/data_loader.gd"
+BiomeRegistry="*res://engine/src/autoloads/biome_registry.gd"
 ThemeVocabulary="*res://engine/src/autoloads/theme_vocabulary.gd"
 ThemeAssets="*res://engine/src/autoloads/theme_assets.gd"
 GameLogger="*res://engine/src/autoloads/game_logger.gd"
 GameState="*res://engine/src/autoloads/game_state.gd"
 TurnManager="*res://engine/src/autoloads/turn_manager.gd"
+ThroneRoomProfile="*res://engine/src/modules/empire/throne_room_profile.gd"
 SpriteManifest="*res://engine/src/autoloads/sprite_manifest.gd"
 ScreenCapture="*res://engine/scenes/tests/capture_screenshot.gd"