Changes

Fix underlying lint violations so ESLint passes without disable comments. Remaining suppressions (where the code is correct but lint disagrees) are left for a follow-up.

Comment-only removals

• Remove /* eslint-disable */ from .markdownlint-cli2.mjs (ESLint doesn't lint this file)

Code fixes

• Floating promises: void prefix instead of eslint-disable (lib/renovate.ts, tools/generate-schema.ts)
• Unnecessary async: Remove from helmfile/utils.ts (already returns Promise via localPathExists())
• Test async patterns: Remove async wrapper in presets/local/index.spec.ts (throws synchronously), replace async arrow with Promise.resolve() in branch/index.spec.ts
• throw lastError: Add non-null assertion in git/index.ts and bitbucket-server/index.ts (guaranteed set by retry loop)
• Redundant type constituents: 'local' | (string & {}) preserves autocomplete (config/types.ts)
• Indexed object style: Replace mapped types with Record<string, ...> (util/stats.ts)

Test fixes

• no-conditional-expect: Unwind single-element loop in kotlin-script/index.spec.ts; replace manual assertions with Zod schema validation in versioning-metadata.spec.ts
• no-sparse-arrays: Explicit undefined values in pr/labels.spec.ts
• no-commented-out-tests: Delete dead commented-out test blocks in codecommit/index.spec.ts
• no-standalone-expect: Remove unnecessary precondition assertion from git/index.spec.ts beforeAll

Context

• This doesn't close an Issue, but I accept the risk that this PR may be closed if maintainers disagree with its opening or implementation

AI assistance disclosure

• Yes — substantive assistance

Documentation (please check one with an [x])

• No documentation update is required

How I've tested my work (please select one)

• Newly added/modified unit tests