feat: initial release of SwoftyDataHandler

Reactive, type-safe data management library with:
- Player fields with validation and namespacing
- Linked/shared fields across players (guilds, islands, parties)
- Versioned codecs with automatic migration chains
- Expiring fields with TTL support
- Atomic transactions with rollback
- Event system with Redis Pub/Sub for cross-server distribution
- Bulk operations: leaderboards, queries, pagination, mass updates
- Pluggable storage: InMemory, File, Redis
- JSON and Binary serialization formats
- 230 tests

Author: Swofty-Developments

.github/workflows/publish.yml

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+name: Publish to Maven Central
+
+on:
+  release:
+    types: [published]
+
+jobs:
+  publish:
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Set up JDK 21
+        uses: actions/setup-java@v4
+        with:
+          java-version: '21'
+          distribution: 'temurin'
+
+      - name: Setup Gradle
+        uses: gradle/actions/setup-gradle@v4
+
+      - name: Extract version from tag
+        run: echo "VERSION=${GITHUB_REF_NAME#v}" >> $GITHUB_ENV
+
+      - name: Run tests
+        run: ./gradlew test
+
+      - name: Publish package
+        run: ./gradlew publish
+        env:
+          OSSRH_USERNAME: ${{ secrets.OSSRH_USERNAME }}
+          OSSRH_PASSWORD: ${{ secrets.OSSRH_PASSWORD }}
+          GPG_SIGNING_KEY: ${{ secrets.GPG_SIGNING_KEY }}
+          GPG_SIGNING_PASSWORD: ${{ secrets.GPG_SIGNING_PASSWORD }}

.github/workflows/test.yml

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+name: Tests
+
+on:
+  push:
+    branches: [ main, master ]
+  pull_request:
+    branches: [ main, master ]
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Set up JDK 21
+        uses: actions/setup-java@v4
+        with:
+          java-version: '21'
+          distribution: 'temurin'
+
+      - name: Setup Gradle
+        uses: gradle/actions/setup-gradle@v4
+
+      - name: Run tests
+        run: ./gradlew test
+
+      - name: Upload test results
+        if: always()
+        uses: actions/upload-artifact@v4
+        with:
+          name: test-results
+          path: build/reports/tests/test/

.gitignore

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+.gradle
+build/
+!gradle/wrapper/gradle-wrapper.jar
+!**/src/main/**/build/
+!**/src/test/**/build/
+.kotlin
+
+### IntelliJ IDEA ###
+.idea/modules.xml
+.idea/jarRepositories.xml
+.idea/compiler.xml
+.idea/libraries/
+*.iws
+*.iml
+*.ipr
+out/
+!**/src/main/**/out/
+!**/src/test/**/out/
+
+### Eclipse ###
+.apt_generated
+.classpath
+.factorypath
+.project
+.settings
+.springBeans
+.sts4-cache
+bin/
+!**/src/main/**/bin/
+!**/src/test/**/bin/
+
+### NetBeans ###
+/nbproject/private/
+/nbbuild/
+/dist/
+/nbdist/
+/.nb-gradle/
+
+### VS Code ###
+.vscode/
+
+### Mac OS ###
+.DS_Store