feat(kyberforge): execute plugin-to-apm marketplace conversion

Why:
ADR-0015 established that Microsoft APM (apm.yml + .apm/) should replace
this repo's hand-authored plugin.json/marketplace.json model, with those
files becoming compiled output of `apm pack` instead of files edited by
hand via the (now-retired) plugin-author/marketplace-author skills.
Issue #90 was the deferred execution of that decision, gated on #88
(apm tooling) and #89 (apm-native agent-author/skill-author routing).

Implementation notes:
- All six plugins (bin, core, git, gitea, kyberforge, lint) now carry
  apm.yml + .apm/{skills,agents,hooks} as their authoring source. Skills
  moved with a plain git mv (content-identical across targets). Agents
  were re-authored, not moved: per ADR-0016, .apm/agents/*.agent.md
  compiles verbatim to both Claude and Copilot, so plugin-scope agents
  now carry only name/description/model/source_keys -- no tools: field,
  no Claude-only knobs (isolation, maxTurns, effort, memory,
  permissionMode).
- Root apm.yml registers all 7 marketplace packages (6 local plus
  mattpocock-skills as a remote entry) under versioning: per_package,
  matching this repo's existing independent-plugin-versioning practice.
- .claude-plugin/marketplace.json and every plugin's plugin.json are now
  apm-pack-compiled output, verified against the prior hand-maintained
  content: same names/descriptions/versions/licenses/authors, only
  cosmetic serialization differences (JSON key order, owner email vs.
  url, Unicode escaping).
- plugin-author and marketplace-author are retired now that apm-based
  authoring fully replaces their job; kyberforge bumped 1.3.1 -> 1.4.0
  for that removal, and the root marketplace catalog bumped
  0.3.1 -> 0.3.2 to match, per the version-bump convention now
  documented in apm-workflow's reference docs instead of a dedicated
  script (apm has no native version-bump automation).
- Fixed hardcoded pre-.apm/ path assumptions across
  .pre-commit-config.yaml, .pre-commit-hooks.yaml,
  scripts/check-scope-walkup-sync.sh, scripts/sync-vale-styles.sh,
  scripts/check-vale-style-sync.sh, six plugins' root plugin.json
  (stale skills/hooks/agents pointer fields that check-manifests.sh
  validates), and several tests/*.bats and tests/*.sh fixtures --
  including a bats REPO_ROOT relative-path depth bug (10 files, one
  extra .apm/ directory level to walk up) and a vale probe-path
  isolation regression introduced mid-fix.
- Corrected empirically-wrong assumptions surfaced this session in
  apm-workflow/apm-install's own reference docs: `apm marketplace
  package add` does not accept local paths (only owner/repo remote
  shorthand -- local packages are registered by editing apm.yml's
  marketplace.packages[] directly); `apm compile` is a consumer-side
  AGENTS.md/CLAUDE.md generator, not the plugin.json producer, and
  hard-fails on skill/agent-only packages without --clean; `apm plugin
  init <name>` nests a stray subdirectory when run with a positional
  name arg from inside a same-named directory; no native Copilot
  marketplace output profile exists; .mcp.json is merged into the
  compiled plugin.json content-aware and target-scoped, with no
  dependencies.mcp entry needed for simple passthrough; pipx is the
  correct pip fallback on externally-managed Python environments.
- Renamed agent-author's copilot.agent.md template asset to
  copilot.agent.md.template so apm compile's recursive *.agent.md glob
  stops misparsing the placeholder template as a real agent primitive.

Impact:
plugin.json and marketplace.json are compiled artifacts from here on --
editing them by hand is no longer the workflow; edit apm.yml/.apm/ and
run apm pack. CONTEXT.md's Plugin/Plugin marketplace glossary entries
reflect this. ADR-0001 is marked superseded, ADR-0006 moot, and
ADR-0010 updated for the new .apm/agents/ path (project/user scope
unaffected, per ADR-0016). Full local verification: claude plugin
validate --strict on all 6 plugins, apm audit --ci, apm marketplace
check, check-manifests.sh, and the full test suite (165/165 bats,
13/13 shell scripts) all pass clean.

Fixes: #90
Refs: #88, #89
ADR: 0015
ADR: 0016

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Ub96PyaSRD9BHPktotj1pC

plugins/kyberforge/.apm/skills/skill-author/references/deployment-modes.md

@@ -0,0 +1,55 @@
+---
+source_keys:
+  - agentskills-spec
+---
+
+# Deployment Modes
+
+Skills deploy standalone, or as part of a package — either a legacy plugin-mode cache install or an APM (`apm.yml`-governed `.apm/` tree, compiled via `apm compile`). All resolve relative paths from the skill root — the SKILL.md body works the same in any of them. Differences only arise when referencing files *outside* the skill directory.
+
+## Cache isolation (plugin mode)
+
+When a plugin is installed, its directory is copied to a cache. Only the plugin's own files are copied. **Any path that leaves the skill directory breaks post-install:**
+
+```
+../other-skill/validate.sh              # breaks
+plugins/kyberforge/skills/other-skill/  # breaks
+../../shared/utils.sh                   # breaks
+```
+
+Fix: duplicate the file into the skill's own `scripts/` or `assets/`. There is no plugin-level `shared/` mechanism — the spec defines no cross-skill sharing, and `../` paths are broken by construction.
+
+## Compiled output (APM package mode)
+
+For a package (an `apm.yml`-governed `.apm/` source tree), the deployable artifact is generated by `apm compile` per target harness — not produced by copying the raw `.apm/` directory wholesale the way a plugin cache install copies a plugin directory. The same self-containment rule still applies at the skill level: **file references inside `.apm/skills/<name>/` must not reach outside that skill's own directory.**
+
+```
+../other-skill/validate.sh          # breaks
+.apm/skills/other-skill/            # breaks
+../../shared/utils.sh               # breaks
+```
+
+Fix: duplicate the file into the skill's own `scripts/` or `assets/`, same as plugin mode. `apm.yml`'s `includes:` list (when explicit, not `auto`) controls what gets published from the package, but it is not a cross-skill sharing mechanism — each skill directory must still stand alone.
+
+## Env vars (plugin mode only)
+
+These variables are injected when the plugin is loaded from an install cache. They are **not available in standalone mode.**
+
+| Variable | Value |
+|----------|-------|
+| `${CLAUDE_PLUGIN_ROOT}` | Absolute path to the plugin's install directory. Changes on update. |
+| `${CLAUDE_PLUGIN_DATA}` | Persistent directory that survives updates. Use for `node_modules`, generated state, caches. |
+
+Use `${CLAUDE_PLUGIN_ROOT}` only in hook commands and `.mcp.json` configs — not in SKILL.md body text, since standalone deployments won't have it.
+
+## Standalone mode
+
+Deployed directly to `~/.agents/skills/<name>/`. No plugin context, no env vars injected. All file references must resolve within the skill directory. Skill invocations (e.g. `/skill-audit`) work if the called skill is also installed.
+
+## Cross-tool portability
+
+`SKILL.md` is portable — the same file works in Claude Code and Copilot CLI, whether deployed standalone or compiled from an APM package. `apm.yml` is the source manifest: it is itself tool-agnostic (one file describes the package regardless of target), but `apm compile` produces per-target compiled output — a Claude Code plugin tree, a Copilot CLI tree, etc. — from it. Legacy hand-authored manifest files (`plugin.json`, `hooks.json`) are tool-specific and authored separately per tool; they sit outside the `apm.yml`-based flow.
+
+## Shared assets between skills
+
+If two skills in the same plugin need the same file, duplicate it into each skill's `assets/` or `scripts/`. Add a comment in both copies noting the mirror relationship so they stay in sync when the spec changes.