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/kyberforge/skills/skill-author/assets/templates/SKILL.md

@@ -45,14 +45,18 @@ description: >
 # Optional. 1–500 characters. State tool requirements, runtime versions,
 # and network access needs. Omit for skills with no special environment requirements.
 
-# metadata:
+metadata:
+  version: "0.1.0"
 #   author: your-name
-#   version: "1.0"
 #   category: general
 #   source_keys:
 #     - source-slug-one
 #     - source-slug-two
-# Optional. Arbitrary key-value map. Common keys: author, version, category.
+# `metadata.version` is REQUIRED on every skill (ADR-0022) and is enforced by the
+# `skill-frontmatter` pre-commit hook. Three-component semver. A newly created
+# skill starts at "0.1.0" — leave the seeded value as it is; "1.0.0" is the seed
+# for a pre-existing skill retrofitted into the rule, not for a new one.
+# The rest of the map is optional: author, category, source_keys.
 # source_keys: populated when built from /research output. Lists slugs from references/sources.md.
 # Also add source_keys to each references/*.md file that was informed by research.