feat: GitHub wiki sync, CI performance fixes, and release automation (#36)

* feat: add GitHub wiki CI sync with landing page and sidebar navigation

- Add current/docs/Home.md as the GitHub wiki landing page
- Add current/docs/_Sidebar.md for persistent wiki sidebar navigation
- Add .github/workflows/sync-wiki.yml to auto-sync current/docs/ to the
  GitHub wiki on every push to main (path-filtered) and via workflow_dispatch
- Update README.md Documentation section with wiki link as first entry

current/docs/ is the single source of truth; the wiki is a publishing target.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

* ci: streamline workflows — scope tests, remove branch Docker builds, add release

test.yml:
- Trigger on all branch pushes (was main-only); covers PRs to main
- Scope to :current:test (was ./gradlew test across all modules)

docker-publish.yml:
- Trigger on push to main only (was all branches + PRs)
- Remove redundant test job — test.yml handles all testing
- Remove branch Docker builds — feature branch images were never used
- Consolidate dual main/branch metadata steps into single step
- Add automatic GitHub Release creation after Docker push (--generate-notes)
- Trivy scan unchanged (main only, non-blocking)

Expected PR wait time: ~10 min (tests only) vs ~35 min previously.
Releases now created automatically on every main merge.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

* feat: replace /bump-version with /prepare-release; switch to manual release trigger

docker-publish.yml:
- Change trigger from push:main to workflow_dispatch
- Releases now fire on demand: gh workflow run docker-publish.yml --ref main
- Decouples PR merge cadence from release cadence

prepare-release skill (replaces bump-version):
- Reads commits since last git tag (not since branch divergence)
- Creates release/vX.Y.Z branch for the version bump commit
- Guides through version bump, changelog, PR creation
- Prints gh workflow run trigger command at the end
- Supports batching: merge N PRs, release once

Removed:
- .claude/skills/bump-version.md
- .claude/hooks/check-version-bump.sh (no longer meaningful — feature PRs
  no longer require a version bump before merge)
- PreToolUse hook registration from .claude/settings.json

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

---------

Co-authored-by: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: jpicklyk

.claude/hooks/check-version-bump.sh

@@ -1,16 +1,3 @@
 {
-  "enabledPlugins": {},
-  "hooks": {
-    "PreToolUse": [
-      {
-        "matcher": "Bash",
-        "hooks": [
-          {
-            "type": "command",
-            "command": "bash .claude/hooks/check-version-bump.sh"
-          }
-        ]
-      }
-    ]
-  }
+  "enabledPlugins": {}
 }