feat!: save management for standalone emulators

[JMBeresford]

Implements save management for standalone emulators, leveraging Ludusavi in the Retrom service.

BREAKING: This is a breaking change for the existing save service API

[github-actions]

Dependency Review

The following issues were found:

• ✅ 0 vulnerable package(s)
• ⚠️ 2 packages with OpenSSF Scorecard issues.

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[nx-cloud]

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☁️ Nx Cloud last updated this comment at 2026-01-20 01:21:33 UTC

[Copilot]

Pull request overview

This pull request implements comprehensive save management for standalone emulators, leveraging Ludusavi for backup/restore functionality and introducing a WebDAV service for cloud save synchronization. The changes introduce a v2 saves service API while deprecating the v1 API, making this a breaking change.

Changes:

• Adds two new Tauri plugins: retrom-plugin-webdav-client for WebDAV communication and retrom-plugin-save-manager for save file orchestration
• Introduces a new WebDAV service package for serving save files via WebDAV protocol
• Implements v2 emulator saves service using Ludusavi for backup/restore operations
• Adds database migration for tracking local emulator save data paths
• Integrates save syncing into the game launch flow with conflict resolution UI
• Refactors existing saves service into v1 namespace (breaking change)

Reviewed changes

Copilot reviewed 112 out of 118 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
plugins/retrom-plugin-webdav-client/*	New Tauri plugin providing WebDAV client functionality with full CRUD operations
plugins/retrom-plugin-save-manager/*	New Tauri plugin managing save sync status, upload/download, and conflict resolution
packages/webdav-service/*	New service package exposing save files via WebDAV protocol
packages/grpc-service/src/saves/v2/*	New v2 saves service implementation using Ludusavi
packages/codegen/protos/retrom/services/saves/v2/*	New protobuf definitions for v2 saves service
packages/codegen/protos/retrom/client/saves.proto	Client-side save sync status and behavior definitions
packages/db/migrations/add-local-emulator-save-path/	Database migration adding save_data_path column
packages/client-web/src/components/modals/resolve-cloud-save-conflict/*	New UI for resolving save conflicts
packages/client-web/src/components/action-button/play-game-button.tsx	Integration of save sync into game launch flow

Files not reviewed (1)

• pnpm-lock.yaml: Language not supported

[Copilot]

This console.log statement should be removed before merging to production. Debug logs should not be committed to the codebase.

Suggested change

console.log(emulator.id, { emulator, config });