Unobfuscated support

[isXander]

Recent Minecraft snapshots are no longer obfuscated. This PR aims to allow Modstitch to work with such versions.

• Renamed legacy loom platform to fabric-loom-remap and added new fabric-loom platform for no-remap versions
• Rewrote AccessWidener parsing to allow for new ClassTweaker format

[Copilot]

Pull request overview

This PR adds support for unobfuscated Minecraft snapshots (starting with 26.1-snapshot-1) by introducing a comprehensive ClassTweaker system to replace the previous AccessWidener implementation. The key changes include:

• Renamed the legacy loom platform to fabric-loom-remap for versions requiring remapping, and added a new fabric-loom platform for unobfuscated versions
• Rewrote AccessWidener parsing into a more flexible ClassTweaker format that supports multiple formats (AT, AW_V1, AW_V2, and the new CT format)
• Added version detection logic to identify unobfuscated Minecraft versions

Reviewed changes

Copilot reviewed 45 out of 47 changed files in this pull request and generated 6 comments.

Show a summary per file

File	Description
src/main/kotlin/dev/isxander/modstitch/util/ClassTweaker.kt	New comprehensive ClassTweaker implementation replacing AccessWidener with support for multiple formats
src/main/kotlin/dev/isxander/modstitch/util/MinecraftVersion.kt	Completely rewritten to support modern (year.drop) and legacy (1.minor.patch) version formats with proper comparison
src/main/kotlin/dev/isxander/modstitch/base/loom/BaseLoomImpl.kt	Updated to support both remapping and non-remapping Loom platforms
src/main/kotlin/dev/isxander/modstitch/base/extensions/Modstitch.kt	Renamed accessWidener properties to classTweaker, added isUnobfuscated detection
src/main/kotlin/dev/isxander/modstitch/util/Platform.kt	Added LoomRemap platform and updated platform enumeration
src/test/kotlin/dev/isxander/modstitch/unit/ClassTweakerTest.kt	New comprehensive test suite for ClassTweaker format parsing and conversion
gradle.properties	Updated Loom and ModDevGradle dependency versions
build.gradle.kts	Updated plugin-publish version

Comments suppressed due to low confidence (1)

src/test/kotlin/dev/isxander/modstitch/integration/ClassTweakerIntegration.kt:53

• Debug println statement should be removed before merging to production.

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