Initial commit: Last-Z Gift Center CLI

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

CLAUDE.md

@@ -0,0 +1,31 @@
+# CLAUDE.md
+
+This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.
+
+## Commands
+
+```bash
+# Install dependencies
+pip install -r requirements.txt
+
+# Run the CLI
+python giftcenter.py login
+python giftcenter.py redeem <gift_code>
+
+# Override UID without editing .env
+python giftcenter.py --uid <uid> login
+python giftcenter.py --uid <uid> redeem <gift_code>
+```
+
+## Configuration
+
+UID is read from the `UID` environment variable, typically set in `.env`. The `--uid` flag on any subcommand overrides it.
+
+## Architecture
+
+Single-file Python CLI (`giftcenter.py`) using `argparse` subcommands:
+
+- `login` → `cmd_login()` — GET `/getcodeuser.php?uid=...`, displays account info
+- `redeem <code>` → `cmd_redeem()` — GET `/code.php` with `Usertoken` header and `uid`/`code` params
+
+API responses use numeric error codes (`code` field) for login and string error codes (`errorCode` field, value `"ok"` on success) for redemption. Error mappings are in `LOGIN_ERRORS` and `REDEEM_ERRORS` constants. UI text is in Traditional Chinese.