feat(omo-claude): aggregate 14 skills + author root hooks.json and plugin test

sync-skills aggregates 4 component skills + 10 shared; 6 harness-tool skills get
the Claude Code Harness Tool Compatibility block; start-work's embedded Codex
section is demoted. Root hooks.json uses ${CLAUDE_PLUGIN_ROOT}, widens PostToolUse
to Write|Edit|MultiEdit, and registers no create_goal PreToolUse (D4). Plugin
aggregate test pins hooks/skills/mcp shape.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

packages/omo-claude/plugin/skills/programming/scripts/go/templates/ci.yml

@@ -0,0 +1,37 @@
+name: ci
+on:
+  pull_request:
+  push:
+    branches: [main]
+
+jobs:
+  ci:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-go@v5
+        with:
+          go-version: '1.23'
+          cache: true
+
+      - name: Install tools
+        run: |
+          go install mvdan.cc/gofumpt@latest
+          go install github.com/golangci/golangci-lint/cmd/golangci-lint@v2.0.0
+          go install go.uber.org/nilaway/cmd/nilaway@latest
+          go install github.com/go-task/task/v3/cmd/task@latest
+
+      - name: Format check
+        run: gofumpt -l . | (! grep .)
+
+      - name: Lint
+        run: golangci-lint run --timeout 5m ./...
+
+      - name: Nilaway
+        run: nilaway ./... || true
+
+      - name: Test
+        run: go test -race -shuffle=on -count=1 ./...
+
+      - name: Build
+        run: go build -trimpath ./...