🧹 Fix typo in hash key 'Jailbreak'

[hahwul]

🎯 What: The code health issue addressed was a typo in the hash key "Jailbreak" inside weapons_obj in scripts/erb.rb. It has been changed to lowercase "jailbreak".

💡 Why: This improves maintainability and consistency, as all other keys in the weapons_obj hash are lowercase (e.g., "nfc", "target", "bluetooth", "inject"). In addition, the lookup relies on type_key = data['type'].downcase, so initializing the hash with an uppercase key was functionally misleading and could potentially lead to bugs in key lookups if "jailbreak" items are encountered (as it was unexpectedly initializing a new lowercase key during execution).

✅ Verification:

1. Ran ruby scripts/erb.rb to generate files successfully and visually verified the fix applied correctly without unintended diffs.
2. Ran ruby scripts/validate_weapons.rb to ensure no errors were introduced to the validation sequence.
3. Code review completed and changes deemed functionally correct and risk-free.

✨ Result: The improvement brings consistency to the hash key usage and fixes potential bugs in lookups without changing behavior.

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PR created automatically by Jules for task 12658078186912846978 started by @hahwul

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