Read a usage block's command table as subcommands with their own flags

CHANGELOG.md

@@ -53,6 +53,8 @@ once it reaches a published 0.1.0 release.
 - [S-168] A colon-introduced list of bare-name choices sitting directly under a placeholder row — or a `+word`/`-word` pair sharing one — now becomes that placeholder's own choices instead of folding into the row's own description, so `mandible Xvfb`'s `+extension`/`-extension` pair shows its 19 run-time-toggleable extension names as choices on both halves.
 - [S-145] A single-dash-long table with no column padding at all now recovers a row's genuine bracketed value one space after its name, so `mandible Xvfb`'s `-render` and `-deferglyphs` keep their own choices instead of losing them outright.
 - [S-167] A `Usage:` line whose leading word carries a bracketed optional-abbreviation suffix (`v[ersion]`, `g[dbserver]`) now reaches the tree as its own subcommand, named and shown by its full word with the short prefix kept as an alias, and probed for its own flags, instead of folding into the usage block (`mandible lldb-server`).
+- [S-169] A command table sitting directly under the root's own usage synopsis, rows never repeating the tool's own name, now recovers as subcommands carrying their own flags and operands instead of fabricated flag groups on the root, so `mandible dmsetup` and `mandible dmstats` show their full command lists.
+- [S-170] A usage-synopsis bracket group whose own value spec is itself entirely option spellings no longer invents a value from it, so `mandible dmsetup`'s `-h, --help` and `-v, --verbose` show no value name instead of `-c|-C|--columns`/`-v|--verbose ...`.
 
 ## [0.7.0] - 2026-09-05