feat: consolidate litellm-health into litellm-self-heal

- litellm-self-heal: merged health check as §Health Check section,
  includes full architecture diagram (v4.0.0), GPU topology, timeout
  tables, container list, and execution flow. Eliminates duplication
  between the two contracts.
- litellm-health: marked DEPRECATED, retained for reference
- README.md: updated with consolidated contract, deprecation notice,
  disk-gc-threat-response, and infrastructure-monitoring status

README.md

@@ -115,10 +115,11 @@ Run on trigger or schedule. Maintain persistent world-model state across runs.
 | `zulip-health` | Zulip | Checks Zulip connectivity, message flow, and bot responsiveness. |
 | `zulip-mention-reliability` | Zulip | Diagnoses and fixes @mention detection issues in Zulip. |
 | `zulip-approval-fix` | Zulip | Fixes broken /approve and /deny slash commands for Hermes agents. |
-| `litellm-self-heal` | LiteLLM | Standing responsibility — monitors LiteLLM health and auto-remediates: key rotation, container restart, config reload, roster fixes. |
+| `litellm-self-heal` | LiteLLM | Consolidated health check + self-healing for the full nginx → LiteLLM → GPU chain. Verifies 8 containers, 3 GPUs, model inference, and agent keys. Applies 9 remediation rules. (litellm-health merged into this contract 2026-07-09.) |
 | `gpu-fleet` | GPU | Manages the GPU inference fleet: model deployment, registration, health checks, LiteLLM sync. |
 | `gpu-monitor` | GPU | Comprehensive GPU fleet monitor — polls sidecars, router, LiteLLM every 15s, renders SSE dashboard. |
 | `proxmox-monitor` | Infra | Proxmox cluster + Docker monitoring via the existing Grafana/Prometheus stack on CT 116. |
+| `disk-gc-threat-response` | Infra | Fleet-wide disk health scan + garbage collection across 15 CTs + 3 GPU hosts + docker-vm KVM VM. 5-tier threat levels with automated GC and Zulip alerting. Two incidents resolved: kagentz (35.67GB) and amdpve (11.56GB). |
 | `pm2-self-heal` | Ops | Monitors PM2 processes (abiba-zulip, abiba-telegram) and auto-restarts any that are stopped or errored. |
 
 ### Instantiable Templates (`kind: pattern` — run with `prose run`)
@@ -146,8 +147,9 @@ Called on-demand as single-render tools.
 
 | Contract | Description |
 |---|---|
-| `litellm-health` | Verifies LiteLLM inference stack health: containers, router, GPU fleet, model inference, agent keys. |
-| `infrastructure-monitoring` | Deploys Prometheus + GPU exporters + Grafana to monitor the inference fleet from CT 116. |
+| `litellm-api-keys` | Manages LiteLLM API keys for agent identity. Create, rotate, verify, and list agent keys. References gpu-fleet for current key inventory. |
+| `litellm-health` | ⚠️ **DEPRECATED** — consolidated into `litellm-self-heal` (2026-07-09). Retained for reference only. |
+| `infrastructure-monitoring` | Target-state for Prometheus + GPU exporters + Grafana. Core stack deployed, GPU exporters NOT live. |
 | `stirling-pdf-agent-access` | Documents the Stirling-PDF API access pattern for agents — global API key, 12 operations, curl examples. Agents use the `stirling-pdf-api` shared skill for templates. |
 | `hello-world` | Minimal test contract — verifies the OpenProse execution pipeline works. |