prResourceHandler called ListPullReviews with default options, so
Forgejo's server default PageSize (30 == EmbeddedListCap) silently
capped responses at the cap. The reviews_truncated/reviews_list_tool
sentinel never fired for PRs with more than 30 reviews. Same
pattern as ee1217d (status), 321b1a0 (issue comments), and 9e5b930
(PR comments).
Closes forgejo-mcp-5dz.
Closes the PR #172 review-fix umbrella (forgejo-mcp-ylb).
Ref PR #172 review https://codeberg.org/goern/forgejo-mcp/pulls/172#issuecomment-16022165