chore: add project infrastructure files

Add .gitignore to exclude sensitive and generated files
Add MIT License for open source compliance

Following Unix philosophy: clear project boundaries

.gitignore

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+# Environment files with secrets
+.env
+*.env
+!.env.example
+
+# Docker volumes and data
+**/data/
+**/volumes/
+
+# Logs
+*.log
+logs/
+**/logs/
+
+# Backups
+*.tar.gz
+*.zip
+backups/
+**/backups/
+
+# OS specific
+.DS_Store
+Thumbs.db
+*.swp
+*.swo
+*~
+
+# IDE
+.vscode/
+.idea/
+*.iml
+
+# Minecraft specific
+minecraft/world/
+minecraft/world_*/
+minecraft/server.jar
+minecraft/libraries/
+minecraft/.fabric/
+
+# Temporary files
+tmp/
+temp/
+*.tmp

LICENSE

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+MIT License
+
+Copyright (c) 2024 m1ngsama
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.