feat: make the cloudnet wrapper a java agent

[0utplay]

Motivation

Having the wrapper as java agent instead of a standalone application that boots the regular application resolves issues where e.g. the application depends on SPI to get some implementation, which was not possible with the current wrapper setup.

Modification

Re-designed the wrapper to be a java agent that is attached instead of a standalone application

Result

The wrapper is an agent and we can start taking a look into sponge support again

[github-actions]

Test Results

 56 files  ±0   56 suites  ±0   4m 34s ⏱️ +36s
571 tests ±0  571 ✅ ±0  0 💤 ±0  0 ❌ ±0 
938 runs  ±0  938 ✅ ±0  0 💤 ±0  0 ❌ ±0 

Results for commit b550594. ± Comparison against base commit 6043b0d.

This pull request removes 37 and adds 37 tests. Note that renamed tests count towards both.

eu.cloudnetservice.driver.impl.document.DocumentSerialisationTest ‑ [4] {"b":1,"s":2,"i":3,"l":4,"f":5.0,"d":6.0,"c":"/","string":"Hello, World!","bol":true,"cloud":["Ben?","Yes","No","HoHoHoHo"],"world":{"insane":"!","hello":"world","this":"is"}}, PRETTY
eu.cloudnetservice.driver.impl.document.gson.JavaTimeSerializerTest ‑ [14] 2026-01-11
eu.cloudnetservice.driver.impl.document.gson.JavaTimeSerializerTest ‑ [23] 19:46:15.214994390
eu.cloudnetservice.driver.impl.document.gson.JavaTimeSerializerTest ‑ [28] 19:46:15.215111549Z
eu.cloudnetservice.driver.impl.document.gson.JavaTimeSerializerTest ‑ [29] 19:46:15.215133370Z
eu.cloudnetservice.driver.impl.document.gson.JavaTimeSerializerTest ‑ [30] 19:46:15.215170981+05:00
eu.cloudnetservice.driver.impl.document.gson.JavaTimeSerializerTest ‑ [31] 19:46:15.215208642-03:00
eu.cloudnetservice.driver.impl.document.gson.JavaTimeSerializerTest ‑ [34] 2026-01-11T19:46:15.215390593
eu.cloudnetservice.driver.impl.document.gson.JavaTimeSerializerTest ‑ [39] 2026-01-11T19:46:15.215540605Z
eu.cloudnetservice.driver.impl.document.gson.JavaTimeSerializerTest ‑ [4] 2026-01-11T19:46:15.205471872Z
…

eu.cloudnetservice.driver.impl.document.DocumentSerialisationTest ‑ [4] {"b":1,"s":2,"i":3,"l":4,"f":5.0,"d":6.0,"c":"/","string":"Hello, World!","bol":true,"cloud":["Ben?","Yes","No","HoHoHoHo"],"world":{"hello":"world","insane":"!","this":"is"}}, PRETTY
eu.cloudnetservice.driver.impl.document.gson.JavaTimeSerializerTest ‑ [14] 2026-01-21
eu.cloudnetservice.driver.impl.document.gson.JavaTimeSerializerTest ‑ [23] 11:52:19.082029353
eu.cloudnetservice.driver.impl.document.gson.JavaTimeSerializerTest ‑ [28] 11:52:19.082149296Z
eu.cloudnetservice.driver.impl.document.gson.JavaTimeSerializerTest ‑ [29] 11:52:19.082171057Z
eu.cloudnetservice.driver.impl.document.gson.JavaTimeSerializerTest ‑ [30] 11:52:19.082208426+05:00
eu.cloudnetservice.driver.impl.document.gson.JavaTimeSerializerTest ‑ [31] 11:52:19.082241297-03:00
eu.cloudnetservice.driver.impl.document.gson.JavaTimeSerializerTest ‑ [34] 2026-01-21T11:52:19.082389012
eu.cloudnetservice.driver.impl.document.gson.JavaTimeSerializerTest ‑ [39] 2026-01-21T11:52:19.082540224Z
eu.cloudnetservice.driver.impl.document.gson.JavaTimeSerializerTest ‑ [4] 2026-01-21T11:52:19.070605044Z
…

♻️ This comment has been updated with latest results.