Initial commit: crypto_key API key manager with PM2 and Ubuntu deploy docs

Co-authored-by: Cursor <cursoragent@cursor.com>

app.py

@@ -0,0 +1,83 @@
+"""
+多账户 API 密钥管理工具 — Flask 后端
+端口: 5200 | 数据: data.json
+"""
+import json
+import uuid
+from pathlib import Path
+
+from flask import Flask, jsonify, request, send_from_directory
+
+app = Flask(__name__)
+
+BASE_DIR = Path(__file__).resolve().parent
+DATA_FILE = BASE_DIR / "data.json"
+
+
+def load_accounts():
+    if not DATA_FILE.exists():
+        return []
+    try:
+        with open(DATA_FILE, "r", encoding="utf-8") as f:
+            data = json.load(f)
+        if isinstance(data, list):
+            return data
+        return []
+    except (json.JSONDecodeError, OSError):
+        return []
+
+
+def save_accounts(accounts):
+    with open(DATA_FILE, "w", encoding="utf-8") as f:
+        json.dump(accounts, f, ensure_ascii=False, indent=2)
+
+
+def validate_account_payload(payload):
+    username = (payload.get("username") or "").strip()
+    api_key = (payload.get("api_key") or "").strip()
+    api_secret = (payload.get("api_secret") or "").strip()
+    if not username:
+        return None, "账户名称不能为空"
+    if not api_key:
+        return None, "API Key 不能为空"
+    if not api_secret:
+        return None, "API Secret 不能为空"
+    return {"username": username, "api_key": api_key, "api_secret": api_secret}, None
+
+
+@app.route("/")
+def index():
+    return send_from_directory(BASE_DIR, "index.html")
+
+
+@app.route("/api/accounts", methods=["GET"])
+def list_accounts():
+    return jsonify(load_accounts())
+
+
+@app.route("/api/accounts", methods=["POST"])
+def create_account():
+    body = request.get_json(silent=True) or {}
+    account, err = validate_account_payload(body)
+    if err:
+        return jsonify({"error": err}), 400
+
+    accounts = load_accounts()
+    account["id"] = str(uuid.uuid4())
+    accounts.append(account)
+    save_accounts(accounts)
+    return jsonify(account), 201
+
+
+@app.route("/api/accounts/<account_id>", methods=["DELETE"])
+def delete_account(account_id):
+    accounts = load_accounts()
+    new_accounts = [a for a in accounts if a.get("id") != account_id]
+    if len(new_accounts) == len(accounts):
+        return jsonify({"error": "账户不存在"}), 404
+    save_accounts(new_accounts)
+    return jsonify({"ok": True})
+
+
+if __name__ == "__main__":
+    app.run(host="127.0.0.1", port=5200, debug=False)