Add options to escape-case and number-literal-case

[otomad]

Close #2078 .

• escape-case add an option to accept lowercase escape value.
• number-literal-case add options to accept lowercase hexadecimal value, uppercase radix identifier and exponential notation.

[sindresorhus]

I prefer dropping the radixIdentifier and exponentialNotation option. Every added option adds an additional maintenance burden and I don't think we should add things just because. I doubt anyone will actually use them, and every user has to read, consider, and understand each option.

[otomad]

I prefer dropping the radixIdentifier and exponentialNotation option. Every added option adds an additional maintenance burden and I don't think we should add things just because. I doubt anyone will actually use them, and every user has to read, consider, and understand each option.

Should I also drop the "ignore" option? Which can convert 0XAbCd to 0xAbCd. If it's for readable code, I think it should also be dropped.

[sindresorhus]

Yes

[otomad]

Done.

[sindresorhus]

A lint issue: https://github.com/sindresorhus/eslint-plugin-unicorn/actions/runs/13649042331/job/38153296589