chore(config): superpowers citers by bare name, routing map, docs, settings

Every superpowers-prefixed skill call in ship-feature, init-project, tour,
deploy, audit-delta, plugin-advisor and lib/analyze-before-plan now names
the vendored skill directly. finishing-a-development-branch is described
as the upstream skill this config does not vendor (gitflow finish is the
integration path). CLAUDE.global.md Skill routing maps the four
non-vendored skills the vendored text still references. settings.json
loses the plugin key and its marketplace block; README, USAGE,
plugin-advisor and the profile skill describe superpowers as vendored
skills, always on, zero plugin cost. CHANGELOG entry with a known
residual.

lib/doc-commit.md

@@ -81,10 +81,11 @@ do NOT bypass them:
 
 ## ORDERING (orchestrators)
 
-`finishing-a-development-branch` merges/pushes COMMITTED history only — it never commits
-working-tree changes. A doc patch left uncommitted (or committed AFTER it) never reaches
-the merge/PR. So this snippet runs BEFORE FINISH: the doc commit lands on the branch FINISH
-integrates. Consumption is MECHANICAL (LRN-057 case a, like the memory commit) — production
+`finishing-a-development-branch` (upstream superpowers skill, not vendored here;
+`gitflow finish` is the only integration path) merges/pushes COMMITTED history only — it
+never commits working-tree changes. A doc patch left uncommitted (or committed AFTER it)
+never reaches the merge/PR. So this snippet runs BEFORE FINISH: the doc commit lands on
+the branch FINISH integrates. Consumption is MECHANICAL (LRN-057 case a, like the memory commit) — production
 on the branch = consumption by the merge, automatic.
 
 ## ACKNOWLEDGMENTS (conscious, not glossed)