Add OpenMemory

[nullure]

Thanks for taking the time to suggest an addition to awesome-selfhosted!

To ensure your Pull Request is dealt with swiftly, please check the following (check the boxes [x]):

• [ x] Submit one item per pull request. This eases reviewing and speeds up inclusion.
• [x ] You have searched the repository for any relevant issues or PRs, including closed ones.
• [x ] Any software you are adding is not already listed at any of awesome-sysadmin, staticgen.com, staticsitegenerators.bevry.me, dbdb.io.
• [ x] The file you are adding is formatted as described in addition.md.
• Demo links should only be used for interactive demos, i.e. not video demonstrations. If login credentials are required to access the demo, please link to the credentials directly.
• [ x] Comments and unused optional fields have been removed.
• The file you are adding uses kebab-case file naming, for example my-awesome-software.yml.
• Values for platform should match the platforms required to install and run the software.
• [x ] Any software project you are adding to the list is actively maintained.
• Any software project you are adding was first released more than 4 months ago.
• [x ] Any software project you are adding has working installation instructions.
• [x ] You understand that your Pull Request will be merged ~1 week after approval, to allow for further comments if needed.

[Rabenherz112]

Hi, thanks for your contribution.

Currently, this project has a release, but it is not yet 4 months old. Our guidelines require that Any software project you are adding was first released more than 4 months ago. This count initiates only after a release has been created to ensure users need not rely on the latest development version to use the project.

I'll go ahead and close it for now to keep the PR section focused on active tasks. Once the first release is four months old, feel free to resubmit it to awesome-selfhosted, or you can create an issue instead (we don't close issues; we just tag them to indicate they need to mature).

Thanks for understanding, and good luck with this project.