fix(dataprotection): watch VolumePopulator restore dependencies

[leon-ape]

Problem

VolumePopulator reads Restore, Component, and Cluster state while reconciling PVCs, but those dependencies were only represented by periodic requeues. Relevant status-only changes therefore did not directly enqueue the waiting restore PVCs.

Changes

• watch internal execution and postReady Restore resources
• watch Component phase and post-provision progress
• watch Cluster phase for deferred postReady restore
• map only PVCs carrying a complete Cluster restore intent and valid cluster/component identity
• validate internal Restore identity and exact PVC/Component owner UID before fan-out
• preserve all existing requeues and restore semantics
• add the VolumePopulator Cluster/Restore RBAC markers; generated RBAC is unchanged because the aggregate role already grants these reads

This PR only makes dependencies explicit. It does not add deletion handling, mutate watched resources, manage finalizers, or delete anything.

Stack

• base: fix(dataprotection): ignore target PVC deletion during restore #10819
• follow-up: fix(dataprotection): terminate cluster restores through resource owners #10777 will implement parent-deletion termination using these watches

Tests

• execution Restore maps only to its exact target PVC
• postReady Restore maps to non-terminal PVCs, including redirected postReady ownership
• Component and Cluster fan-out excludes terminal or invalid PVCs
• status-only dependency updates pass predicates while unrelated updates are filtered
• full controllers/dataprotection package
• cmd/dataprotection compile test

[codecov]

Codecov Report

❌ Patch coverage is 83.09859% with 24 lines in your changes missing coverage. Please review.
✅ Project coverage is 65.63%. Comparing base (adaef79) to head (9b13ca2).

Files with missing lines	Patch %	Lines
...ers/dataprotection/volumepopulator_dependencies.go	82.35%	17 Missing and 7 partials ⚠️

Additional details and impacted files

@@                            Coverage Diff                            @@
##           bugfix/stop-target-pvc-delete-cleanup   #10825      +/-   ##
=========================================================================
+ Coverage                                  65.60%   65.63%   +0.03%     
=========================================================================
  Files                                        510      511       +1     
  Lines                                      64400    64542     +142     
=========================================================================
+ Hits                                       42249    42362     +113     
- Misses                                     18395    18407      +12     
- Partials                                    3756     3773      +17     

Flag	Coverage Δ
unittests	65.63% <83.09%> (+0.03%)	⬆️

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[leon-ape]

/approve