feat: add core no-redeclare rule

[fansenze]

Summary

• Port ESLint core no-redeclare into internal/rules/no_redeclare and register it as a core rule.
• Reuse the core implementation from @typescript-eslint/no-redeclare, preserving the TS wrapper defaults.
• Add shared helpers for ECMAScript globals and /*global(s)*/ directive comment parsing, and reuse them from related rules.
• Add upstream coverage plus extra edge/real-project cases and JS RuleTester coverage.

Related Links

• ESLint docs: https://eslint.org/docs/latest/rules/no-redeclare
• ESLint source: https://github.com/eslint/eslint/blob/main/lib/rules/no-redeclare.js
• ESLint tests: https://github.com/eslint/eslint/blob/main/tests/lib/rules/no-redeclare.js

Checks run:

• pnpm run check-spell
• pnpm run format:check
• pnpm exec golangci-lint run ./internal/plugins/typescript/rules/no_redeclare ./internal/rules ./internal/rules/no_shadow ./internal/rules/no_undef ./internal/rules/no_redeclare ./internal/utils
• Focused rule verification and real-repo checks were run locally during development.

Checklist

• Tests updated (or not required).
• Documentation updated (or not required).