fix(treeland-user): Remove systemd security restrictions to fix servi…

[justforlxz]

Jan 28 11:10:58 honor-laptop (treeland)[811]: treeland.service: PrivateIPC=yes is configured, but IPC namespace setup failed, ignoring: Operation not permitted
Jan 28 11:10:58 honor-laptop (treeland)[811]: treeland.service: Failed to set up mount namespacing: /dev/mqueue: Operation not permitted
Jan 28 11:10:58 honor-laptop (treeland)[811]: treeland.service: Failed at step NAMESPACE spawning /usr/bin/treeland: Operation not permitted
Jan 28 11:10:58 honor-laptop systemd[703]: treeland.service: Main process exited, code=exited, status=226/NAMESPACE
Jan 28 11:10:58 honor-laptop systemd[703]: treeland.service: Failed with result 'exit-code'.

PrivateIPC: This option is only available for system services, or for services running in per-user instances of the service manager in which case PrivateUsers= is implicitly enabled (requires unprivileged user namespaces support to be enabled in the kernel via the "kernel.unprivileged_userns_clone=" sysctl).

Security controls for the treeland-user service have been temporarily removed. They will be added back after further confirmation of the options.

[deepin-ci-robot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: justforlxz

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[sourcery-ai]

Reviewer's guide (collapsed on small PRs)

Reviewer's Guide

This PR updates the treeland systemd service unit by removing several hardening/security directives that were preventing the service from starting, trading off systemd-level security restrictions for reliable startup while deferring a more targeted fix to a later change.

File-Level Changes

Change	Details	Files
Relax systemd hardening settings on the treeland user session service to resolve startup failures.	Remove NoNewPrivileges setting from the treeland service unit Remove OOMScoreAdjust and Nice adjustments that altered process scheduling/oom behavior Remove MemoryDenyWriteExecute to allow writable/executable memory mappings needed during startup Remove PrivateIPC to allow IPC sharing with other processes as required by treeland Remove ProtectSystem and ProtectProc restrictions that limited filesystem and /proc visibility Remove RestrictSUIDSGID to permit running or interacting with setuid/setgid binaries if needed by treeland	misc/systemd/dde-session-pre.target.wants/treeland.service.in

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缺少换行