refactor: massive rename dap -> dat

- Renamed packages io.shinhanlife.dap to io.shinhanlife.dat
- Renamed modules dap-was-* and dap-gateway to dat-was-* and dat-gateway
- Renamed classes DapGateway* to DatGateway*
- Updated all references

dat-tool-report/Dockerfile

@@ -0,0 +1,14 @@
+FROM eclipse-temurin:21-jdk-alpine AS builder
+WORKDIR /workspace
+COPY . .
+RUN chmod +x gradlew \
+    && ./gradlew :dap-tool-report:bootJar -x test --no-daemon \
+    && find dap-tool-report/build/libs -name '*-SNAPSHOT.jar' ! -name '*-plain.jar' -exec cp {} /workspace/app.jar \;
+
+FROM eclipse-temurin:21-jre-alpine
+WORKDIR /app
+RUN apk add --no-cache tzdata
+ENV TZ=Asia/Seoul
+COPY --from=builder /workspace/app.jar app.jar
+EXPOSE 8092
+ENTRYPOINT ["java", "-jar", "app.jar"]