chore(forgeboot-webflux): Initialize project configuration

- Add .gitattributes files, set file line breaks and binary files to handle - Create .gitignore files, ignore unnecessary project files and directories
- Create a new build.gradle.kts file, configure root project properties and dependencies

forgeboot-webflux/.gitattributes

@@ -0,0 +1,3 @@
+/gradlew text eol=lf
+*.bat text eol=crlf
+*.jar binary

forgeboot-webflux/.gitignore

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+HELP.md
+.gradle
+build/
+!gradle/wrapper/gradle-wrapper.jar
+!**/src/main/**/build/
+!**/src/test/**/build/
+
+### STS ###
+.apt_generated
+.classpath
+.factorypath
+.project
+.settings
+.springBeans
+.sts4-cache
+bin/
+!**/src/main/**/bin/
+!**/src/test/**/bin/
+
+### IntelliJ IDEA ###
+.idea
+*.iws
+*.iml
+*.ipr
+out/
+!**/src/main/**/out/
+!**/src/test/**/out/
+
+### NetBeans ###
+/nbproject/private/
+/nbbuild/
+/dist/
+/nbdist/
+/.nb-gradle/
+
+### VS Code ###
+.vscode/
+
+### Kotlin ###
+.kotlin

forgeboot-webflux/build.gradle.kts

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+extra {
+    // 标记为根项目
+    setProperty(ProjectFlags.IS_ROOT_MODULE, true)
+}
+
+dependencies {
+
+}