Summary

• add --markdown-output and --json-output to taskbound review
• update the composite Action to run the review once, then reuse the generated markdown and JSON reports
• keep GitHub annotations, step summary, and Action outputs from the same review result
• add regression coverage for supplemental report files and single Action review invocation

Scope

Only touch action.yml, src/index.ts, and tests covering supplemental report outputs and single Action review invocation.

Validation

• red: node --test test/cli-output.test.mjs failed on unknown --markdown-output
• red: node --test test/workflow.test.mjs failed with 3 Action review invocations instead of 1
• npm test
• npm run build
• git diff --check
• local TaskBound review returned NONE for the PR scope