Summary

• Expand zshy wildcard export matches into explicit jsr.json exports so JSR publish does not receive wildcard subpaths.
• Keep npm package.json exports in wildcard form while reusing the existing wildcard discovery results for JSR output.
• Add fixture coverage that verifies wildcard JSR exports become explicit entries.

Test plan

• pnpm vitest run test/zshy.test.ts
• ReadLints on src/main.ts and test/zshy.test.ts