chore(plugins): sync generated content mirrors

Regenerates `plugins/*/skills`, `plugins/*/agents`, both per-plugin `plugin.json` manifests and the
two marketplace mirrors from `.apm/` per ADR-0017, via `scripts/sync-plugin-content.sh --all`.

The manifests matter beyond tidiness here: `plugin.json` carries the plugin version and wins over
the marketplace entry at install time (calculatePluginVersion precedence). Until this ran, the patch
bumps in the preceding commit were inert for anyone installing these plugins.

ADR: 0017
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01EeH8SCbcrCAQrtymkNuhKP

plugins/git/skills/git-branches/references/merging.md

@@ -26,5 +26,6 @@ list the conflicted files, edit each to resolve its markers, then `rtk git add <
 `rtk git merge --continue`.
 
 - `rtk git merge --abort` restores the pre-merge state.
-- `rtk git mergetool` opens the configured merge tool.
+- `git mergetool` opens the configured merge tool — bare, not `rtk`: it hands control to an
+  interactive child process, and a token filter has nothing to offer there (ADR-0023).
 - `rtk git diff --diff-filter=U` shows only the still-conflicted files.