[arrase]

Summary

• Single-Deme-Per-Hex Territorial Grid & Inter-Cell Border Ecology: Enforces strictly 1 resident deme per terrestrial HexCell (cell.deme_ids.size() <= 1). All Hawk-Dove resource competition, symbiotic trade, horizontal cultural diffusion, kin merges, synoecism unifications, raids, tributes, and warband invasions occur across shared hex borders (HexEdgeFlow), with a deterministic 3-step displacement cascade (evacuate_or_merge_displaced_deme).
• 2D/2.5D High-Definition Procedural Vector & GPU Shader World: Replaces CPU pixel-art terrain/village stamping with procedural CanvasItem vector hex columns and GPU ShaderMaterial shaders (OCEAN_SHADER_CODE, TERRAIN_SHADER_CODE with full concentric UV coverage and season_warmth uniforms), while keeping in-memory UI_SPRITES in EvoPixelArtGen.
• Concentric Morphological Living Settlements: Renders settlements in 3 concentric rings: Ring 0 (Archetype Plaza & Tier 1..4 Citadel), Ring 1 (Trait Crown — up to 6 radial structures mapped from biological_trait_ids and cultural_trait_ids), and Ring 2 (Defense Perimeter 0..3 + biome-reactive flora).
• 3-Tier Semantic Zoom (Macro, Meso, Micro): Smoothly transitions between Macro (zoom < 0.68: territory wash + lineage medallions + border fronts), Meso (0.68 <= zoom < 1.35: concentric settlements + Decision Intent Crests + animated border flows), and Micro (zoom >= 1.35: diagnostic bars + Ring 1 trait labels + villager activity).
• Sequential 4-Step Micro-Phase Turn Playback & Ollama Pipeline: Adds step_phase_1_environment..step_phase_4_demography_milestones, a 4-pip Turn Phase Bar (1. Env, 2. Mind, 3. Clash, 4. Lineage), phase-specific world overlay highlights, BorderCompetition System 1 prompt context, and season-synchronized Phase 1/Phase 4 Ollama signature prefetching.
• Documentation & Screenshots: Updates README.md, gh-pages documentation, and regenerates all screenshots in gh-pages/assets/img/.

Verification

• Automated test suite: godot --headless --path . --script res://tests/test_runner.gd (498 PASSED | 0 FAILED).
• Visual capture suite: godot --path . --script res://tests/test_visual_capture.gd.