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>

run_pokemon_radar_api.sh

@@ -0,0 +1,14 @@
+#!/usr/bin/env bash
+cd /opt/pokemon-radar-api
+
+export POKER_URL="http://192.168.42.124:13000/function"
+export POKER_TOKEN="6R0W53R135510"
+export POKER_SCRIPT="twpk_radar.mjs"
+
+# uv run uvicorn pokemon_radar_api:app --host 0.0.0.0 --port 8008
+
+uv run uvicorn pokemon_radar_api:app \
+  --host 0.0.0.0 \
+  --port 8008 \
+  --log-config logging.ini
+