Improve manifest downloads, library refresh, SteamStub ticket handling, and ticket extraction

[OpenSteam001]

Summary

This PR introduces four major improvements across manifest downloading, library state refresh, SteamStub-only game support, and ticket extraction tooling.

Changes

1. Manifest download source update

Manifest downloads now default to:

manifest.opensteamtool.com

This is the official OpenSteamTool manifest endpoint and is used as the default source for manifest downloads.
Attempt to fix #90

2. Library hot refresh and bulk operation fixes

Improved library state handling after:

• Hot reload
• Repeated bulk deletion
• Repeated bulk import

Library status is now refreshed correctly after these operations. Deleted or re-imported entries no longer leave stale/residual state behind, and the UI can correctly reflect the current library status.

3. SteamStub-only game ticket handling

SteamStub-only games no longer require manually configuring AppTicket.

OpenSteamTool can reuse Steam's local ConfigStore ticket and forge the requested AppId through a SteamDRMP off-by-four ticket parsing vulnerability, without injecting into the game process.

This makes SteamStub-only workflows simpler while preserving a no-injection path for supported cases.
Attempt to fix #25

4. Ticket extraction tooling

Added the extract_tickets tool.

The tool dumps the AppTicket and ETicket hex strings required by:

• setAppTicket
• setETicket

Usage requirement:

Run extract_tickets on a machine where Steam is running, logged in, and the account owns the target game.
Attempt to fix #88

Notes

• The manifest default now points to the official OpenSteamTool manifest service.
• Library refresh behavior has been hardened for repeated hot reload, bulk deletion, and bulk import flows.
• SteamStub-only games can reuse local Steam ConfigStore ticket data and forge the requested AppId via the SteamDRMP off-by-four ticket parsing path.
• extract_tickets provides a simpler way to obtain ticket hex strings for owned games.

[Temlpe]

This version seems to have a small problem. I found that it will not read opensteamtool.toml correctly. I set the pattern mirror to mirror = "https://22.guyunsq.com/beihe/steam-monitor@pattern" in opensteamtool.toml, but I found from the log that the pattern mirror called the default https://raw.githubusercontent.com/the currently officially released v1.4.6-fix version does not have this problem.

[OpenSteam001]

I set the pattern mirror to mirror = "https://22.guyunsq.com/beihe/steam-monitor@pattern" in opensteamtool.toml
Thanks for the report.

This is caused by a config format change in the new version. It no longer uses the old mirror option.

Please update your opensteamtool.toml to use:

[remote]
url_template = "https://22.guyunsq.com/beihe/steam-monitor@{channel}/{component}/{sha256}.toml"

The currently released v1.4.6-fix still supports the old behavior, but the new build uses [remote].url_template instead.