Initialize project structure with core entities and configuration

Co-authored-by: ram.dafale <ram.dafale@cognizant.com>

target/classes/application.properties

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+# Server Configuration
+server.port=8080
+server.servlet.context-path=/tennis-prediction
+
+# H2 Database Configuration
+spring.datasource.url=jdbc:h2:mem:tennisdb
+spring.datasource.driverClassName=org.h2.Driver
+spring.datasource.username=sa
+spring.datasource.password=password
+spring.jpa.database-platform=org.hibernate.dialect.H2Dialect
+
+# H2 Console Configuration (for development)
+spring.h2.console.enabled=true
+spring.h2.console.path=/h2-console
+
+# JPA/Hibernate Configuration
+spring.jpa.hibernate.ddl-auto=create-drop
+spring.jpa.show-sql=true
+spring.jpa.properties.hibernate.format_sql=true
+
+# Thymeleaf Configuration
+spring.thymeleaf.cache=false
+spring.thymeleaf.prefix=classpath:/templates/
+spring.thymeleaf.suffix=.html
+
+# Logging Configuration
+logging.level.com.tennis=DEBUG
+logging.level.org.springframework.web=DEBUG
+
+# External API Configuration (for FlashScore or similar)
+tennis.api.base-url=https://api.flashscore.com
+tennis.api.key=your-api-key-here
+
+# Application specific properties
+tennis.prediction.model.threshold=0.6
+tennis.prediction.update-interval=30000