add(driver): 123 official app

[PIKACHUIM]

add(driver): 123 official app

[Copilot]

Pull request overview

This PR adds support for using official 123 网盘 (123pan) app credentials via environment bindings, and adjusts the UI to allow “server-side/official credentials” mode for the 123 网盘 driver.

Changes:

• Add cloud123_uid / cloud123_key bindings to Wrangler configs and runtime env injection.
• Update the 123 网盘 OAuth/login flow to optionally use server-provided credentials and send JSON payloads.
• Add a new /app route and adjust the frontend driver-selection behavior to no longer forbid server-side mode for 123cloud_go.

Reviewed changes

Copilot reviewed 6 out of 6 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
wrangler.jsonc	Adds cloud123_uid/cloud123_key to Worker vars.
wrangler.example.jsonc	Adds example cloud123_uid/cloud123_key entries.
src/index.ts	Adds cloud123_* to bindings and introduces /app redirect route.
src/driver/123cloud_oa.ts	Uses server env creds when server_use is enabled; switches request to JSON.
src/basic.ts	Injects cloud123_* from process.env for node dev server.
public/static/event.js	Allows server-side mode selection for 123cloud_go.

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