chore: standardise repository for TFMC

[ryanbarlow97]

Summary

Brings the new Research repository, the replacement for the archived AdvancedResearch, in line with the other TFMC plugins.

• Build: Java 21 / paper-api:1.21.10-R0.1-SNAPSHOT with main-SNAPSHOT and the shared POM layout. The Windows systemPath jars and the antrun copy step are removed.
• Dependencies: TLibs 2.0.1 and TFMCCore 2.0.1, the latest releases, installed by the shared installer. MMOCore moves from 1.11.3 to 1.13.1 to match the other plugins, and MythicLib 1.7 comes from ServerAssets 183a187. Both are checked by checksum. The unused compile-time MMOItems and ItemsAdder jars are dropped; the runtime depend list is unchanged.
• Code: imports now use the lowercase net.tfminecraft.tlibs packages. Javadoc no longer mentions implementation batches.
• Docs: removes docs/ (batch plans, redesign spec, dated migration notes). The current behaviour guide, including a short section on replacing AdvancedResearch, is now in TF-Minecraft/Docs.
• Repository: adds the shared workflows, artifact check, .gitignore (replacing the old one), .editorconfig, licence and README.
• Descriptor: version: '${project.version}' and api-version: '1.21.10'. The previous 0.13.0 was out of step with the POM's 1.0.0.

Validation

• mvn clean verify passes locally on Java 21.0.12 / Maven 3.9.11 with the pinned inputs; no unit-test suite.
• .github/scripts/plugin-artifact.py accepts the runtime JAR; the embedded plugin.yml has the Maven version and api-version: '1.21.10', and the classes are Java 21 bytecode (major 65).
• The default build prints no compiler warnings. With -Dmaven.compiler.showDeprecation=true, the only warnings left are legacy string UI calls (setDisplayName, ChatColor and similar), which other TFMC plugins also still use.
• GitHub Build workflow passes with the private inputs downloaded by DEPS_TOKEN.
• No live server run. Runtime checks are listed in the Docs guide.

Most of the diff is CRLF-to-LF normalisation. Review with whitespace hidden (?w=1).

Found during review, not changed here

• plugin.yml lists MMOCore as a soft dependency, but MmoAttributes calls it directly. Install MMOCore wherever Research runs, or make it a hard dependency.
• Every lectern right-click is cancelled, so vanilla lecterns stop working unless station.permission is set.
• A lectern break that another plugin cancelled still scraps the project.
• SoundKeys turns upper-case enum names such as the default ENTITY_EXPERIENCE_ORB_PICKUP into invalid keys, so that sound never plays.

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