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.

.claude-plugin/marketplace.json

@@ -1,59 +1,59 @@
 {
   "name": "holocron",
   "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/"
   },
   "plugins": [
     {
       "name": "kyberforge",
       "description": "Skills and agents for creating, maintaining, and managing an apm plugin marketplace for Claude Code and GitHub Copilot.",
-      "version": "2.0.0",
+      "version": "2.0.1",
       "category": "Developer Tools",
       "source": "./plugins/kyberforge"
     },
     {
       "name": "bin",
       "description": "Skills for everyday AI-assisted development work that is not tied to a single tool, forge or language, and has not yet been split into a focused plugin.",
-      "version": "1.1.8",
+      "version": "1.1.9",
       "category": "Utilities",
       "source": "./plugins/bin"
     },
     {
       "name": "git",
       "description": "Skills and agents for working with a local Git clone over the git wire protocol, and for authoring and running the pre-commit hooks that guard it.",
-      "version": "1.3.8",
+      "version": "1.3.9",
       "category": "Version Control",
       "source": "./plugins/git"
     },
     {
       "name": "gitea",
       "description": "Skills and agents for working with a Gitea forge through its HTTP API — the forge's own objects, as distinct from the local git clone.",
-      "version": "1.3.9",
+      "version": "1.3.10",
       "category": "Version Control",
       "source": "./plugins/gitea"
     },
     {
       "name": "onedev",
       "description": "Skills and agents for working with a OneDev forge through the TOD CLI — the forge's own objects, as distinct from the local git clone.",
-      "version": "0.1.0",
+      "version": "0.1.1",
       "category": "Version Control",
       "source": "./plugins/onedev"
     },
     {
       "name": "core",
       "description": "Skills for authoring and auditing a repo's AGENTS.md and the provider adapter files that defer to it.",
-      "version": "1.1.3",
+      "version": "1.1.4",
       "category": "Productivity",
       "source": "./plugins/core"
     },
     {
       "name": "lint",
       "description": "Skills and agents for configuring and running linters.",
-      "version": "1.1.8",
+      "version": "1.1.9",
       "category": "Developer Tools",
       "source": "./plugins/lint"
     }