refactor: rename delta-force-guide to ahsarah-guide and merge into monorepo

- Merge delta-force-guide-server into server/ subdirectory
- Merge delta-force-guide-web into web/ subdirectory
- Rename Java package com.onixbyte.deltaforceguide to com.onixbyte.ahsarahguide
- Rename DeltaForceGuideApplication to AhsarahGuideApplication
- Update all config files, Dockerfiles, and CI workflows
- Update frontend display name and repo links
- Update legal documents (EULA, PrivacyPolicy)
- Create root-level CLAUDE.md, README.md, LICENCE, .gitignore, .gitattributes
- Move CI workflows to root .gitea/workflows/ with working-directory
- Delete .gitlab-ci.yml (legacy)
- Preserve git history from both original repositories

server/Dockerfile

@@ -6,5 +6,5 @@ RUN chmod +x ./gradlew && \
 
 FROM amazoncorretto:21-alpine AS runner
 WORKDIR /app
-COPY --from=builder /app/build/libs/delta-force-guide-server-1.0.0.jar app.jar
+COPY --from=builder /app/build/libs/ahsarah-guide-server-*.jar app.jar
 ENTRYPOINT ["java", "-jar", "app.jar"]