#74 chore: fix Ultracite and TypeScript diagnostics

What changed

• Update lint and test tooling dependencies, and run the suite with Vitest.
• Fix the reported Ultracite and TypeScript issues across source, scripts, and tests.
• Add a patch changeset covering the tooling updates and fixes.
• Include the editor and hook configuration changes already present in the local worktree.

Verification

• bun run check
• bun run typecheck
• bun run test (51 tests passed)

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Summary by cubic

Migrates the test suite from bun:test to Vitest and fixes the reported Ultracite and TypeScript diagnostics across source, scripts, and tests.

• The test script now builds the package before running Vitest, which resolves the @ alias through vitest.config.ts.
• Updates lint and tooling dependencies (ultracite, oxlint, lefthook, effect, @types/bun) and extends oxlint with Vitest, jsdoc, and tsdoc plugins.
• Adds a regression test for consumeResetCredit rejecting positional string arguments.
• Configures editor TypeScript paths and formatter defaults in .vscode and .zed.