feat(scanner): reject plugin pnpm uv and poetry publish

[seonghobae]

Successor of #1180 / issue #1099. Does not Close those. npm/twine/cargo stay #1180. Object-store s3 stays #1179. Pass is not Noema admission.

Unique delta

Fail closed when a plugin hook or manifest runs remaining package-manager publish writes that #1180 left as inventory:

• pnpm publish as claude-plugin-pnpm-publish-command (CWE-269)
• uv publish as claude-plugin-uv-publish-command (CWE-250)
• poetry publish as claude-plugin-poetry-publish-command (CWE-250)
• yarn npm publish stays claude-plugin-npm-publish-command
• pnpm list stays inventory
• unquoted # comments, echo/printf lookalikes, and marketplace description prose are not this class
• README pnpm wording is not a hook command
• snippets are command labels, not tokens or secrets

#1180 remains owner of npm/twine/cargo publish.

Evidence

• RED f734512 then GREEN e933579
• tests/test_claude_plugin_alt_publish.py plus sibling registry lock
• plugin coverage suite 484 passed on Python 3.13

Relates to #1099. Relates to #1180.

Current quoted-command context repair

This descendant inherits #1173 RED d7384e53d44a426356a73e24b2b9cc3fe153de27 and final canonical repair 3a5b14771cc7abb6553fa1ec9bcd8b62acc947ac without copying a leaf workaround. Exact head: e9df55d04e2563ad90a574d4f2f5685fa52754af; current parent: e835a8fc4e050bb6f960ed04686717b5773bc63f; Git compare is 0 behind and preserves this PR's unique detector/test delta. The top #1183 source AST and extracted helper probes pass quoted/reporting negatives while preserving direct and command-substitution positives. This custom-base PR stays Draft until its own hosted integration and independent review are terminal.

Current assignment-value context repair — 2026-09-08

This normal two-parent descendant inherits canonical #1173 RED 90ae232e852b3d01463d978f9bccd9157c341fe7 and GREEN 1e6a3eb43a5bc2d146656af13e7fa6cad2a77315 without a leaf workaround. Exact head: 058051f72e7a953905bafcf5142eb93f7698e863; current parent: 167a0ba7cc538bb2d3d56679ddc7d24fc71ef32d; Git compare is 0 behind and preserves this PR's unique detector/test delta. Assignment-value negatives and environment-prefix/direct/substitution positives are present in the exact tree. This custom-base PR remains Draft until its own hosted integration and independent current-head review are terminal. Earlier head strings in this body are historical evidence only.

Current heredoc-safe restack — 2026-09-08

Canonical #1173 exact head 184b4b4f55906284ac1d8059e46cec8f0d9cfc9a fixes closed literal here-document payload false positives with RED 6f6be77d... → GREEN 12faf2f.... This branch was integrated non-destructively on parent ecc7a1c883cd06d80a9431b35aa152282c7a5f9e; exact head is 2c7b0656fdd9e1977483fb007e3173d387254893. GitHub compare reports behind_by=0, ahead_by=11; the PR's unique detector delta remains in the tree. Exact-head hosted integration and independent review are not terminal, so this PR remains Draft. Earlier head strings are historical evidence only.

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