PuellaCare

- Reworked the downloadable assets subsystem. Downloading should feel more smooth and robust on devices with low memory.

- Fixed turn limit in quest battles (https://github.com/Puella-Care/totentanz-meta/issues/15).

- Physically separated Capricieux server (https://github.com/Puella-Care/capricieux) handling the archive app.

- Initial implementation of account import using `connect.zip` files. API server relies on https://github.com/nodejs/node/pull/59109 and https://github.com/nodejs/node/pull/59462.

- Several data storage optimizations.

Notable change: campaigns can be randomized now. Currently, regular Mitama may be sometimes replaced with different shopkeeper.

User-facing updates:

- SE and atb enhancement bonuses are now calculated accurately

- fixed hard crash when attempting to evolve Mayoi beyond rank 5.

Non-user-facing updates:

- improved schema validation coverage

- improved handling Sana's randomDoppelMagias

- several data storage optimizations

Updating client app is not required.

Key improvements:

- Full-fledged IPv6 support

- Compression using brotli algorithm

- Persistent data is now backed to drive every 1 hour and is restored after each server restart.

- Existing persistent data restored from latest available full image (timestamp: `2025-05-18 10:02:39.094389128 +0200`)

- Internal performance improvements

- Migration to unix domain socket

- Fixed a few edge-case crashes

Somewhat good news, the server is gonna have full-fledged IPv6 support.

Currently, there are no subscription perks whatsoever.

The funds are going to be used on maintaining the `Totentanz` project and staying alive.