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/skills/agent-author/assets/templates/apm-agent.md

@@ -1,54 +0,0 @@
----
-<!-- Vendor-neutral APM agent definition (plugin/APM scope).
-     Path: <package-root>/.apm/agents/<name>.agent.md — one file, no counterpart.
-     `apm compile` copies this frontmatter verbatim to BOTH the Claude Code and
-     Copilot CLI targets — there is no per-target field integrator. Claude's
-     `tools:` (space-separated string) and Copilot's `tools:` (alias list) are
-     incompatible vocabularies, and Claude-only fields (isolation, maxTurns,
-     effort, memory, permissionMode) have no Copilot equivalent. A value correct
-     for one harness is guaranteed wrong on the other, so this scope carries
-     ONLY the fields below — full stop (see ADR-0016). `source_keys` is
-     provenance metadata, not a runtime field, and is exempt from that rule.
-
-     Do NOT add: tools, isolation, maxTurns, effort, memory, permissionMode,
-     disallowedTools, skills, color, initialPrompt, background, hooks, or
-     mcpServers. Omitting `tools` means inherit-all-tools on both harnesses,
-     which is never wrong.
-
-     Fill in all FILL IN: placeholders. Delete template comments before shipping. -->
-
-name: AGENT_NAME
-<!-- Required. Lowercase letters and hyphens only. Must be unique within the scope. -->
-
-description: FILL IN: Action-first description of what this agent does and when to invoke it.
-<!-- Required. The primary signal for autonomous delegation.
-     Start with a verb: "Reviews...", "Analyzes...", "Generates..."
-     Be specific about the triggering condition and expertise domain.
-     Example: "Reviews pull request diffs for security issues. Use proactively after code changes." -->
-
-<!-- model: sonnet
-     Optional. Aliases: sonnet, opus, haiku, fable. Or full model ID.
-     Omit to inherit the runtime default on whichever harness compiles this file. -->
-
-<!-- source_keys:
-       - slug-name
-     Development-only. Add when research sources informed this agent (slugs must match
-     sources.md at the package root — same directory as apm.yml).
-     Omit when no research was used. Not a runtime field — silently ignored by both harnesses. -->
----
-
-FILL IN: System prompt body. Write as a direct role instruction.
-
-You are a FILL IN: role description. When invoked, FILL IN: primary action.
-
-## Inputs
-
-FILL IN: What inputs does this agent expect? (files, context, parameters)
-
-## Process
-
-FILL IN: Steps the agent takes. Be specific about ordering if it matters.
-
-## Output
-
-FILL IN: What does the agent produce? Format, location, structure.