[feat] align CI workflow names with filename standard

Update all CI workflow names to follow "CI: <Description>" pattern
for 1:1 correspondence with filenames as suggested by @benceruleanlu:

- ci-json-validation.yaml → "CI: JSON Validation"
- ci-lint-format.yaml → "CI: Lint Format"
- ci-python-validation.yaml → "CI: Python Validation"
- ci-tests-e2e.yaml → "CI: Tests E2E"
- ci-tests-unit.yaml → "CI: Tests Unit"
- ci-tests-storybook.yaml → "CI: Tests Storybook"
- ci-tests-*-forks.yaml → "CI: Tests * Forks"

Also added explanation of JSON validation scope (all .json files
except tsconfig*.json) to address reviewer question.

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

.github/workflows/ci-json-validation.yaml

@@ -1,5 +1,8 @@
 name: "CI: JSON Validation"
 
+# Validates JSON syntax in all tracked .json files (excluding tsconfig*.json)
+# Uses jq to ensure valid JSON syntax across configuration and data files
+
 on:
   push:
     branches: