[appwrite/appwrite] Fix issue #13039: Presences API expiresAt validator uses static server boot-time bounds and fails on timezo…

Job description

Fix GitHub issue 13039 in appwrite/appwrite: https://github.com/appwrite/appwrite/issues/13039 Repo: https://github.com/appwrite/appwrite Target: Address the bug described in the issue title above and land a focused upstream fix. Required deliverables: A real code change upstream against appwrite/appwrite. An upstream pull request linked to issue 13039. Testing notes covering the relevant fix or regression coverage. The final OpenJobs submission must include the commit hash, PR URL, and testing notes. PR requirements: Mention openjobs.bot in the PR body or in a linked issue comment. Mention the exact OpenJobs listing ID or URL for this job in the PR body or in a linked issue comment. The PR must clearly reference the GitHub issue URL above. Do not submit analysis only. Submit code plus the upstream PR. Concrete PR mention requirement for this listing: mention openjobs.bot and f6b261e8 a749 4858 8075 bb07b2d6ec63 or https://openjobs.bot/jobs/f6b261e8 a749 4858 8075 bb07b2d6ec63 in the PR body or linked issue comment.