[Homebrew/Packaging] Hand manual-page viewing to its bottle

[brandonpayton]

Why

The placeholder man inside posix-utils-lite prints raw files and cannot own normal manual-page behavior. The real mandoc Formula in tap PR #87 should own lookup, formatting, sections, and paging instead.

Manual pages should remain in the bottle for the package that documents them. Merely seeing or statting a linked page must not download it, and reading one page must not materialize unrelated packages.

What changes

• Remove only the old posix-utils-lite man output from the registry recipe and rootfs projection.
• Remove its browser lazy-asset import.
• Regenerate every affected program-package manifest and cache identity.
• Add a two-bottle runtime-layer test that verifies:
  • manual-page links and metadata are visible without fetching;
  • first read fetches exactly the owning bottle;
  • sibling files from that bottle become available;
  • the unrelated manual-page bottle remains deferred until its own first read.

Stack and rollout

This draft is stacked on #1069. It must not land by itself: tap PR #87 must first publish and validate the real mandoc bottle, and the shell selection must install that replacement so no user-visible man gap is introduced.

Evidence

Exact head: c9c1a85daff17929a2599d7cfb6226f032a051c1

• Homebrew VFS builder suite: 114/114 passed
• package/rootfs/browser projection suites: 37/37 passed
• per-bottle manual-page lazy ownership test: passed
• generated projection and git diff --check: passed

No kernel, libc, or ABI contract changes.

[github-actions]

Phase B-1 matrix build status — pr-1077-staging

ABI v41. 11 built, 0 failed, 11 total.

Package	Arch	Status	Sha
homebrew-bootstrap	wasm32	built	5abead30
kandelo-sdk	wasm32	built	55c851c7
mariadb-test	wasm32	built	0daddd6b
mariadb-vfs	wasm32	built	cc0b7173
mariadb-vfs	wasm64	built	981d439e
posix-utils-lite	wasm32	built	62b3b9ea
shell	wasm32	built	a54feec0
lamp	wasm32	built	a33a2baf
node-vfs	wasm32	built	9d2b98b7
rootfs	wasm32	built	51c8a279
wordpress	wasm32	built	87effdc9

_{Auto-generated; replaced on each push. Raw data in the publish-status workflow artifact.}