feat(engine-v2): add platform configuration UI

[pggb25]

Summary

Issue:

Screenshots / Recordings

Testing

• Changes tested locally in the relevant Console's pages and Storybooks
• yarn test or yarn test -u (if you need to regenerate snapshots)
• yarn format
• yarn lint

PR Checklist

• I followed naming, styling, and TypeScript rules (see .cursor/rules)
• I performed a self-review (diff inspected, dead code removed)
• I titled the PR using Conventional Commits with a scope when possible (e.g. feat(service): add new Terraform service) - required for semantic-release
• I only kept necessary comments, written in English (watch for useless AI comments)
• I involved a designer to validate UI changes if I am not a designer
• I covered new business logic with tests (unit)
• I confirmed CI is green (Codecov red can be accepted)
• I reviewed and executed locally any AI-assisted code

[codecov]

Codecov Report

❌ Patch coverage is 53.25670% with 122 lines in your changes missing coverage. Please review.
✅ Project coverage is 46.99%. Comparing base (d554e0d) to head (4234d9b).
⚠️ Report is 2 commits behind head on staging.

Files with missing lines	Patch %	Lines
.../platform-configuration/platform-configuration.tsx	0.00%	46 Missing ⚠️
...b/platform-configuration/platform-configuration.ts	0.00%	21 Missing ⚠️
.../catalog-variable-input/catalog-variable-input.tsx	23.52%	6 Missing and 7 partials ⚠️
...form-configuration/platform-configuration-utils.ts	77.27%	5 Missing and 5 partials ⚠️
...configuration/platform-component-configuration.tsx	73.91%	3 Missing and 3 partials ⚠️
...m-configuration/platform-configuration-catalog.tsx	80.76%	2 Missing and 3 partials ⚠️
...atform-configuration/hooks/use-platform-binding.ts	0.00%	4 Missing ⚠️
...tion/hooks/use-platform-component-configuration.ts	0.00%	4 Missing ⚠️
...configuration/hooks/use-update-platform-binding.ts	0.00%	4 Missing ⚠️
...form-configuration/hooks/use-platform-templates.ts	0.00%	3 Missing ⚠️
... and 5 more

Additional details and impacted files

@@             Coverage Diff             @@
##           staging    #2817      +/-   ##
===========================================
+ Coverage    46.93%   46.99%   +0.05%     
===========================================
  Files         1263     1275      +12     
  Lines        27061    27292     +231     
  Branches      7887     7984      +97     
===========================================
+ Hits         12701    12825     +124     
- Misses       12194    12275      +81     
- Partials      2166     2192      +26     

Flag	Coverage Δ
unittests	46.99% <53.25%> (+0.05%)	⬆️

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