Subset of esbuild's Metafile shape that we actually read. Defined locally so
this module doesn't import the heavy esbuild package — it only parses a
JSON file that esbuild produced earlier.
const metafile: AffectedMetafile = { inputs: { 'test/a-test.ts': { imports: [{ path: 'lib/util.ts' }] }, 'lib/util.ts': {} }, };
inputs: Record<string, { imports?: Array<{ path: string; }>; }>
Every input file esbuild visited, keyed by path relative to esbuild's cwd.