feat!: add Conditions to Projects

[hiddeco]

Continues on #2239

This PR implements status conditions for Project resources, replacing the existing Phase and Message fields with a more structured and granular approach to reporting a Project's state.

A new Stalled condition indicates when a resource reconciliation has halted due to an issue requiring manual intervention.

It also updates the CLI to display Project status using conditions instead of Phase. The kargo get projects command now shows a "Ready" column instead of "Phase", and includes a "Status" column with the condition message.

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Condition logic

• When initializing a Project:
  • Set Reconciling to True with Reason Initializing
  • Set Ready to False with Reason Initializing
• When namespace initialization fails:
  • Set Stalled to True with Reason ExistingNamespaceMissingLabel
  • Set Ready to False with Reason NamespaceInitializationFailed
• When permissions initialization fails:
  • Set Ready to False with Reason PermissionsInitializationFailed
• When default roles initialization fails:
  • Set Ready to False with Reason RolesInitializationFailed
• After successful initialization:
  • Remove the Reconciling condition
  • Set Ready to True with Reason Initialized

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[codecov]

Codecov Report

Attention: Patch coverage is 85.93750% with 18 lines in your changes missing coverage. Please review.

Project coverage is 48.70%. Comparing base (06f6ad8) to head (152c4fe).
Report is 1 commits behind head on main.

Files	Patch %	Lines
internal/cli/cmd/get/projects.go	0.00%	8 Missing ⚠️
...nternal/controller/management/projects/projects.go	94.82%	4 Missing and 2 partials ⚠️
api/v1alpha1/project_types.go	0.00%	4 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2401      +/-   ##
==========================================
+ Coverage   48.43%   48.70%   +0.26%     
==========================================
  Files         245      245              
  Lines       17697    17809     +112     
==========================================
+ Hits         8572     8673     +101     
- Misses       8709     8719      +10     
- Partials      416      417       +1     

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