feat(skills): deploy skill for Claude Code

Instructs CC to always route deploy/redeploy/ship/wdróż requests through
scripts/deploy/deploy.sh, maps exit codes to required actions, and
enforces no-bypass rules for gate and branch checks.

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

.claude/skills/deploy/SKILL.md

@@ -0,0 +1,43 @@
+---
+name: deploy
+description: Deploy, redeploy, or ship homelab services to a target node. Trigger on any request containing deploy / redeploy / wdróż / zredeployuj / ship for targets control-plane, vps, piha, solaria, or chelsty-infra.
+---
+
+Always invoke `scripts/deploy/deploy.sh <target> [--dry-run] [--no-gate]` as the **sole entry point**.
+Never call `deploy-control-plane.sh`, `deploy-node.sh`, or `deploy-local.sh` directly.
+
+## Targets
+
+| Target | What it deploys |
+|---|---|
+| `control-plane` | observer, supervisor, executor, operator-ui on VPS |
+| `vps` | all VPS GitOps services (node-agent, npm, outline, joplin, ai-cluster, …) |
+| `piha` | PIHA services (ha-diag-agent, node-agent, redis, …) |
+| `solaria` | SOLARIA compute services |
+| `chelsty-infra` | CHELSTY LTE edge node (30 s SSH timeout) |
+
+## Invocation
+
+```bash
+scripts/deploy/deploy.sh <target>            # full pipeline
+scripts/deploy/deploy.sh <target> --dry-run  # preflight + gate only
+scripts/deploy/deploy.sh <target> --no-gate  # emergency: bypass tests
+```
+
+## Exit Code Handling
+
+| Code | Meaning | Required action |
+|---|---|---|
+| 0 | Success | Report: target, commit hash, gate status, verify status, elapsed time |
+| 1 | Preflight failed | Fix the upstream issue (push commits, wake node, switch to master). Never bypass. |
+| 2 | Gate failed | Show exactly which test/build failed. Do **not** deploy. Fix the failure first. |
+| 3 | Execute failed | Show full deploy output. Ask user whether to investigate or rollback. |
+| 4 | Verify failed | Show docker ps output. Discuss rollback with the user. |
+| 5 | Sudo handoff | Print the exact manual command from stderr **verbatim** and stop. User must run it. |
+
+## Rules
+
+- Never pass `--no-gate` unless the user explicitly requests emergency/bypass mode.
+- Never deploy uncommitted or unpushed code — preflight enforces this; do not help circumvent it.
+- Canonical branch is `master` — preflight enforces this.
+- For exit 5: reproduce the handoff command exactly as printed to stderr, then stop.