fix: close install manifest packaging gaps (#2172)

- commands-core now ships scripts/harness-audit.js and scripts/skills-health.js:
  the module installs the whole commands/ dir, so /harness-audit and
  /skill-health were installed without their backing engines on
  manifest-driven installs (the original 1.10.0 failure mode)
- agentic-patterns now ships scripts/claw.js: the module installs the
  nanoclaw-repl skill, whose workflow operates scripts/claw.js
- package.json files array gains scripts/skills-health.js so the npm publish
  surface stays aligned with the module graph (claw.js and harness-audit.js
  were already listed)
- orchestration drops commands/multi-workflow.md and commands/sessions.md
  from its explicit paths: both are already shipped by commands-core, which
  is a declared dependency of the module, so the duplicate ownership produced
  two copy operations per destination in install-state. The two scripts/lib
  entries are kept because hooks-runtime is NOT a declared dependency and a
  standalone orchestration install still needs them

manifests/install-modules.json

@@ -53,7 +53,9 @@
       "kind": "commands",
       "description": "Core slash-command library and command docs.",
       "paths": [
-        "commands"
+        "commands",
+        "scripts/harness-audit.js",
+        "scripts/skills-health.js"
       ],
       "targets": [
         "claude",
@@ -560,8 +562,6 @@
       "kind": "orchestration",
       "description": "Worktree/tmux orchestration runtime and workflow docs.",
       "paths": [
-        "commands/multi-workflow.md",
-        "commands/sessions.md",
         "scripts/lib/orchestration-session.js",
         "scripts/lib/tmux-worktree-orchestrator.js",
         "scripts/orchestrate-codex-worker.sh",
@@ -619,6 +619,7 @@
       "kind": "skills",
       "description": "Agentic engineering, autonomous loops, agent harness construction, and LLM pipeline optimization skills.",
       "paths": [
+        "scripts/claw.js",
         "skills/agent-architecture-audit",
         "skills/agent-harness-construction",
         "skills/agentic-engineering",