Resolve Clashing Project Ids

[4e6]

Pull Request Description

close #1581

Project manager assigns fresh identifiers to the projects that have duplicate project ids. Which project is original is decided by the directory creation time.

Changelog

• feat: when reading the projects list, resolve duplicate project ids based on the directory creation time
• test: set SQLite journaling mode to memory, to avoid messing up the test environment

Important Notes

Checklist

Please include the following checklist in your PR:

• The documentation has been updated if necessary.
• All code conforms to the Scala, Java, and Rust style guides.
• All documentation and configuration conforms to the markdown and YAML style guides.
• All code has been tested where possible.