feat: complete Style 32 overhaul & Tiled integration fix

- Enforced 'Style 32 - Dark Chibi Vector' for all ground assets.
- Fixed critical Prologue-to-Game crash (function renaming).
- Implemented Tiled JSON/TMX auto-conversion.
- Updated Asset Manager to visualize 1800+ assets.
- Cleaned up project structure (new assets/grounds folder).
- Auto-Ground logic added to GameScene.js.

STYLE_32_DIRECTIVE.md

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+# GAME MASTER STYLE GUIDE - ZABETONIRANO 2026
+
+## 🎨 ART STYLE: "STYLE 32 - DARK CHIBI VECTOR"
+**MANDATORY FOR ALL ASSETS (Terrain, Characters, UI, Buildings)**
+
+Ovaj stil je **ZAKON**. Ne odstopaj od njega niti za milimeter.
+
+### 1. Vizualna DNA (Lastnosti)
+*   **Vector Aesthetic:** Čiste, ostre linije. NIČ PIKSLOV. Izgledati mora kot visokokakovostna vektorska grafika ali "Clean Hand-Drawn".
+*   **Bold Outlines:** VSE mora imeti debele, črne obrobe (outlines). To je ključ za "Chibi" in "Edgy" videz.
+*   **Flat Colors:** Uporabljaj ploske, žive barve. Brez prelivajočih gradientov ali realističnega senčenja. "Cel Shaded" videz.
+*   **Dark/Edgy Vibe:** Čeprav je Chibi, mora biti "badass". Razpoke v tleh, ostre skale, temnejši odtenki vode. Nič "Cute & Cuddly", ampak "Cute & Dangerous".
+
+### 2. Generacijski Prompti (Reference)
+Za prihodnje generiranje uporabljaj te ključne besede:
+> "Vector art style, hand-drawn aesthetic, bold clarity, thick black outlines, flat colors, dark chibi style, cel shaded, no pixel art, seamless pattern."
+
+### 3. Implementacija
+Trenutno aktivni tileseti v tem stylu:
+- `assets/terrain/grass_tile.png` (Style 32 Grass)
+- `assets/terrain/dirt_tile.png` (Style 32 Dirt)
+- `assets/terrain/stone_path_tile.png` (Style 32 Stone)
+- `assets/terrain/water_tile.png` (Style 32 Water)