init: Redis-backed Pokémon 雷達 API

- radar_fetcher.py：呼叫 Function Server 抓 twpkinfo.com 資料後寫入 Redis (TTL 300s)
- pokemon_radar_api.py：FastAPI /scan，從 Redis 讀取並依 request 即時二次篩選；Redis 不可用時回 200 空結果，不再 500
- pokemon_location_fetcher.py：舊版 CLI，仍由 fetch_and_upload.sh 使用
- 文件：README (參考手冊)、QUICKSTART (操作指南)、SUMMARY (故事線)、CLAUDE.md

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

pyproject.toml

@@ -0,0 +1,14 @@
+[project]
+name = "pokemon-radar-api"
+version = "0.1.0"
+requires-python = ">=3.10"
+dependencies = [
+    "fastapi",
+    "uvicorn[standard]",
+    "requests",
+    "httpx>=0.28.1",
+    "redis>=7.1.0",
+    "loguru>=0.7.3",
+    "rich>=14.2.0",
+]
+