[backend] feat(sc): post-creation redirection and CTAs for security coverage (#4676)

[antoinemzs]

Backport of #4980

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 56.06%. Comparing base (57c035b) to head (a29a5be).
⚠️ Report is 2 commits behind head on master.

Additional details and impacted files

@@             Coverage Diff              @@
##             master    #4997      +/-   ##
============================================
+ Coverage     55.86%   56.06%   +0.19%     
- Complexity     4425     4456      +31     
============================================
  Files           986      986              
  Lines         29245    29282      +37     
  Branches       2141     2144       +3     
============================================
+ Hits          16338    16417      +79     
+ Misses        11965    11919      -46     
- Partials        942      946       +4     

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