feat(skills): add skills.sh listing scaffold

[aimerdoux]

Summary

Adds six user-facing skills under /skills/ so this repo can be listed on skills.sh and installed via the vercel-labs/skills CLI (npx skills add aimerdoux/wavex-os).

Skill	Drives
wavex-os-init	Install + 5-pillar wizard (first run)
wavex-os-audit	doctor + audit diagnostics
wavex-os-provision-company	2nd+ company on an existing install
wavex-os-mission-control	Read-only fleet inspector
wavex-os-debug-healing	Walk the 3-layer self-heal flow
wavex-os-activate-and-ignite	Activate signed manifest + seed first tasks

Each SKILL.md has YAML frontmatter (name + description) and references only commands/routes that exist in this repo:

• CLI commands (init|doctor|audit|reset) verified against apps/installer/bin/init.js
• HTTP routes verified against packages/wavex-os-server/src/routes/ (mission-control, observability, activate, ignite, redundancy, system-health)

No frozen paths touched. No runtime dependencies added.

Why a separate top-level /skills/

Two distinct skill systems coexist after this PR:

1. Agent-runtime skills (existing, FROZEN) — loaded into agent prompts at handoff via packages/onboarding-ui/public/agent-templates/_shared/ and packages/standard-skills/. Not user-invokable.
2. skills.sh skills (new, this PR) — invokable by Claude Code on behalf of a user of WaveX OS. Top-level /skills/ is the well-known discovery path for npx skills.

The new skills/README.md cross-links to the runtime skills so contributors don't conflate them.

Listing on skills.sh

This PR makes the repo installable. To actually appear on the skills.sh leaderboard, a follow-up PR against vercel-labs/skills is needed once this lands (per skills.sh/contact).

Test plan

• Frontmatter parses on all six SKILL.md files (already verified locally — name + description present)
• npx skills add aimerdoux/wavex-os resolves and installs from this branch
• Every CLI command and HTTP route referenced in each SKILL.md is greppable in this repo
• Render skills/README.md on the GitHub web view — links resolve
• No frozen path appears in the diff (git diff --stat origin/main...)

🤖 Generated with Claude Code