feat: 초기 커밋

- Progress Quest 6.4 Flutter 포팅 프로젝트
- 게임 루프, 상태 관리, UI 구현
- 캐릭터 생성, 인벤토리, 장비, 주문 시스템
- 시장/판매/구매 메커니즘

doc/dfm-extract-notes.md

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+# DFM Extract Script Usage
+
+- Input: `example/pq/Config.dfm`
+- Output: `lib/data/pq_config_data.dart`
+- Command:
+  ```bash
+  dart run tool/dfm_extract.dart
+  ```
+- Expected summary (item counts):
+  - Spells 45
+  - OffenseAttrib 11 / DefenseAttrib 9 / OffenseBad 9 / DefenseBad 14
+  - Weapons 38 / Armors 20 / Shields 16
+  - Specials 37 / ItemAttrib 33 / ItemOfs 51 / BoringItems 42
+  - Monsters 231 / MonMods 16
+  - Races 21 / Klasses 18 / Titles 9 / ImpressiveTitles 13
+- Notes:
+  - Keeps original string literals and `name|level` style intact.
+  - Keys mirror TMemo names in `Config.dfm` without trailing colons.
+  - Re-run the command after any DFM change to refresh the Dart data.