Macroscope Adds Scoped PR Approval, Leaner Checks

These upgrades make autonomous code review more governable: teams can expand automation without handing an agent blanket approval authority.

• –Path allowlists provide a clear blast-radius boundary for auto-approval.
• –Shared ignore rules simplify configuration across correctness reviews and custom checks.
• –Skipping tests, JSON, and other low-value files should reduce latency and usage costs.
• –The tradeoff is missed coverage when a legitimate cross-cutting change touches files outside the allowlist.
• –Markdown-defined checks continue pushing CI policy toward readable, version-controlled agent instructions.