chore: migrate git host from git.dev.rkdr.net to git.rkdr.net

Why
The repo's git host moved from git.dev.rkdr.net to git.rkdr.net. The
`origin` remote was already repointed; this commit brings every
in-repo reference in line so cloning, submodule init, and apm install
all resolve against the new host.

Implementation Notes
- .gitmodules: docs/wiki submodule URL repointed (tests/* submodules
  stay on github.com, untouched).
- Root apm.yml: 7 dependency entries and marketplace.owner.url
  repointed; executables.allow key updated to kyberforge#2.0.1 to
  match kyberforge's bump below (scripts/check-executables-allow-sync.sh
  enforces this pairing).
- Each plugin's apm.yml (bin, core, git, gitea, kyberforge, lint,
  onedev): author.url/homepage/repository repointed. Per this repo's
  apm versioning policy, these fields compile verbatim into
  plugin.json, so each package took a patch version bump alongside
  the URL change.
- Root apm.yml version and marketplace.version bumped 0.5.0 -> 0.5.1
  to match (a marketplace-block field and every listed package's
  version moved).
- apm.lock.yaml regenerated via `apm install`; .claude-plugin/marketplace.json
  regenerated via `apm pack --marketplace=claude` so compiled output
  stays in sync with the manifests.

Impact
docs/adr/0015, 0017, and 0018 intentionally keep the old host in their
issue links and examples — they are historical decision records, not
live config. Verified clean: apm pack --check-clean, apm audit --ci,
check-executables-allow-sync.sh, and pre-commit --all-files all pass.

apm.yml

@@ -1,5 +1,5 @@
 name: holocron
-version: 0.5.0
+version: 0.5.1
 description: AI development skills for Claude Code, and for GitHub Copilot through apm — factory, design, implement, review, and cross-cutting workflows.
 license: MIT
 
@@ -16,17 +16,17 @@ targets:
   - claude
 dependencies:
   apm:
-    - git: git@git.dev.rkdr.net:Defame1297/holocron.git
+    - git: git@git.rkdr.net:Defame1297/holocron.git
       path: plugins/bin
-    - git: git@git.dev.rkdr.net:Defame1297/holocron.git
+    - git: git@git.rkdr.net:Defame1297/holocron.git
       path: plugins/core
-    - git: git@git.dev.rkdr.net:Defame1297/holocron.git
+    - git: git@git.rkdr.net:Defame1297/holocron.git
       path: plugins/git
-    - git: git@git.dev.rkdr.net:Defame1297/holocron.git
+    - git: git@git.rkdr.net:Defame1297/holocron.git
       path: plugins/gitea
-    - git: git@git.dev.rkdr.net:Defame1297/holocron.git
+    - git: git@git.rkdr.net:Defame1297/holocron.git
       path: plugins/kyberforge
-    - git: git@git.dev.rkdr.net:Defame1297/holocron.git
+    - git: git@git.rkdr.net:Defame1297/holocron.git
       path: plugins/lint
     # TOD's skills arrive transitively through this wrapper rather than as a
     # direct entry, so the marketplace and this repo consume onedev by the same
@@ -38,7 +38,7 @@ dependencies:
     # `apm install` fails, which includes the copy kyberforge's SessionStart
     # hook runs on launch. Accepted deliberately: this branch is merging
     # immediately.
-    - git: git@git.dev.rkdr.net:Defame1297/holocron.git
+    - git: git@git.rkdr.net:Defame1297/holocron.git
       path: plugins/onedev
   mcp: []
 
@@ -61,7 +61,7 @@ dependencies:
 # an apm mechanic.
 executables:
   allow:
-    kyberforge#2.0.0:
+    kyberforge#2.0.1:
       hooks: true
       bin: true
 
@@ -71,11 +71,11 @@ marketplace:
   # top-level apm.yml description:/version: above are NOT inherited into the
   # compiled output despite being used elsewhere (e.g. by `apm audit`).
   description: AI development skills for Claude Code, and for GitHub Copilot through apm — factory, design, implement, review, and cross-cutting workflows.
-  version: 0.5.0
+  version: 0.5.1
   owner:
     name: Defame1297
     email: defame1297@rkdr.net
-    url: https://git.dev.rkdr.net/Defame1297/
+    url: https://git.rkdr.net/Defame1297/
 
   # Default tag pattern used to resolve version ranges for each package.
   build: