Display type refs inline on trace lines

[liurenfeng94-ops]

Fixes #32

• index trace type ids from trace args and resolve them to TypeLine records
• render trace-line type refs inline with hover text and a go-to-definition style action
• add tests for mapped ids and nested results.typeId resolution

Validation:

• pnpm vitest run test/index.test.ts test/save-name.test.ts test/trace-type-refs.test.ts
• pnpm typecheck
• pnpm exec eslint .
• pnpm build