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/gitea/.apm/skills/gitea-branches/SKILL.md

@@ -0,0 +1,66 @@
+---
+name: gitea-branches
+
+description: >
+  Use when managing Gitea repository branches — listing, creating, or deleting
+  branches — or inspecting commit history within a Gitea repo: listing commits
+  (optionally filtered by branch or file path) or getting full detail for a
+  single commit by SHA. Triggers on "list branches", "create a branch",
+  "delete a branch", "what commits are on this branch", "show commit <sha>",
+  "what changed in that commit" — even if the user doesn't say "Gitea"
+  explicitly, as long as the repo's remote is a Gitea instance. Do not use for
+  local git branch/commit operations on your working copy (use git-branches or
+  git-history) or for PR-side branch references like cross-repo fork PR heads
+  (use gitea-prs).
+
+compatibility: Requires Gitea MCP server configured with a token with write:repository scope; this is confirmed to gate list_branches, create_branch, and delete_branch (Gitea gates reads behind write scope for repo-scoped operations), and is inferred by analogy (not explicitly confirmed by source docs) to also gate list_commits and get_commit. Requires git remote "origin" pointing to the Gitea instance.
+
+metadata:
+  category: integration
+  version: "0.1.1"
+  source_keys:
+    - gitea-mcp-repo
+    - gitea-mcp-slim-go
+    - context7-websites-gitea
+
+allowed-tools: Bash mcp__gitea__list_branches mcp__gitea__create_branch mcp__gitea__delete_branch mcp__gitea__list_commits mcp__gitea__get_commit
+---
+
+## Gotchas
+
+- **Never delete a protected branch (`main`/`master` by name, or `protected: true` from `list_branches`) without explicit confirmation.** `delete_branch` is a direct API call, not a local `git push` — there is no client-side force-push guard protecting it. Name-matching `main`/`master` is a convenient default but not authoritative — a repo can protect a differently-named default branch. When in doubt, call `list_branches` first and check `protected` on the target; treat deletion of any protected branch as a hard refusal unless the user explicitly confirms in the conversation.
+- **404 may actually mean 403.** Gitea hides permission errors as not-found to avoid leaking resource existence. If any of these five tools returns 404 unexpectedly, check token scope (see `references/branches.md` / `references/commits.md`) before concluding the branch or commit doesn't exist.
+- **Pagination is manual.** `list_branches` and `list_commits` return one page at a time — no auto-pagination in the MCP layer. When you need a complete list, iterate `page: 1, 2, ...` until the returned count is less than `per_page`.
+- **Owner/repo always come from the git remote, never from `get_me`.** Resolve them via `git remote get-url origin` (Step 1 below). `get_me`/`list_my_repos` are blocked under the token scopes this skill assumes.
+- **`create_branch`'s source is `old_branch`, not "wherever gitea-mcp feels like."** Omitting `old_branch` forks from the repo's server-side default branch — not necessarily the branch you're currently working on locally. If you want to branch from your current checkout, pass `old_branch` explicitly.
+
+## Step 1 — Resolve owner and repo
+
+Before any tool call, extract `owner` and `repo` from the git remote:
+
+```bash
+git remote get-url origin
+```
+
+If origin is not set or the URL is not a Gitea URL, stop and report: "No Gitea remote found — set origin to your Gitea instance URL."
+
+## Step 2 — Dispatch
+
+| Invocation | Action |
+|---|---|
+| `/gitea-branches` or `/gitea-branches list` | List branches |
+| `/gitea-branches create <name> [from <base>]` | Create branch |
+| `/gitea-branches delete <name>` | Delete branch |
+| `/gitea-branches commits [on <branch>] [touching <path>]` | List commit history |
+| `/gitea-branches commit <sha>` | Get full detail for one commit |
+
+For branch operations (list/create/delete), read `references/branches.md`.
+For commit operations (list/get), read `references/commits.md`.
+
+## Step 3 — Report
+
+For reads: display branches as name + protected flag; display commits as SHA (short), message summary, author, date.
+
+For writes (create/delete): confirm the action taken, the branch name, and (for create) the base it forked from.
+
+For errors: surface the HTTP code and message. If a 404 is unexpected, re-check token scope per the Gotchas above before reporting "not found" to the user.