Preparation and Planing Documents added to the github

.gitignore

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+# Compiled class files
+*.class
+
+# Log files
+*.log
+
+# Package Files
+*.jar
+*.war
+*.nar
+*.ear
+*.zip
+*.tar.gz
+*.rar
+
+# Maven
+target/
+pom.xml.tag
+pom.xml.releaseBackup
+pom.xml.versionsBackup
+pom.xml.next
+release.properties
+dependency-reduced-pom.xml
+buildNumber.properties
+.mvn/timing.properties
+.mvn/wrapper/maven-wrapper.jar
+
+# Gradle
+.gradle
+build/
+!gradle/wrapper/gradle-wrapper.jar
+!**/src/main/**/build/
+!**/src/test/**/build/
+
+# IntelliJ IDEA
+.idea/
+*.iws
+*.iml
+*.ipr
+out/
+!**/src/main/**/out/
+!**/src/test/**/out/
+
+# Eclipse
+.classpath
+.project
+.settings/
+bin/
+tmp/
+*.tmp
+*.bak
+*.swp
+*~.nib
+local.properties
+.loadpath
+.recommenders
+
+# NetBeans
+/nbproject/private/
+/nbbuild/
+/dist/
+/nbdist/
+/.nb-gradle/
+
+# VS Code
+.vscode/
+*.code-workspace
+
+# macOS
+.DS_Store
+.AppleDouble
+.LSOverride
+
+# Windows
+Thumbs.db
+Thumbs.db:encryptable
+ehthumbs.db
+ehthumbs_vista.db
+*.stackdump
+[Dd]esktop.ini
+$RECYCLE.BIN/
+*.lnk
+
+# Database files (exclude runtime DB, keep schema)
+*.db
+*.sqlite
+*.sqlite3
+!src/main/resources/database/schema.sql
+
+# Test output
+test-output/
+test-results/
+
+# Coverage reports
+.jacoco/
+jacoco.exec
+
+# Application data
+data/
+*.db-journal
+
+# Logs
+logs/
+*.log.*
+
+# Temporary files
+*.tmp
+*.temp
+
+# IDE-specific files
+nbactions.xml
+
+# JavaDoc
+javadoc/
+docs/api/