preparing document module

documents/build.gradle.kts

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+description = "Umbrella : Documents"
+
+dependencies{
+    implementation(project(":core"))
+}

documents/src/main/java/de/srsoftware/umbrella/documents/Constants.java

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+/* © SRSoftware 2025 */
+package de.srsoftware.umbrella.documents;
+
+public class Constants {
+	private Constants(){}
+
+	public static final String COMPANIES = "companies";
+}

documents/src/main/java/de/srsoftware/umbrella/documents/DocumentApi.java

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+/* © SRSoftware 2025 */
+package de.srsoftware.umbrella.documents;
+
+import static de.srsoftware.umbrella.core.ResponseCode.HTTP_NOT_IMPLEMENTED;
+import static de.srsoftware.umbrella.documents.Constants.COMPANIES;
+
+import com.sun.net.httpserver.HttpExchange;
+import de.srsoftware.tools.Path;
+import de.srsoftware.umbrella.core.BaseHandler;
+import java.io.IOException;
+
+public class DocumentApi extends BaseHandler {
+	@Override
+	public boolean doGet(Path path, HttpExchange ex) throws IOException {
+		addCors(ex);
+		var head = path.pop();
+		return switch (head){
+			case COMPANIES -> getCompanies(ex);
+			case null, default -> super.doGet(path,ex);
+		};
+	}
+
+	private boolean getCompanies(HttpExchange ex) throws IOException {
+		return sendEmptyResponse(HTTP_NOT_IMPLEMENTED,ex);
+	}
+}