fix: GPU table correction + OpenProse v0.15 alignment + self-heal rules 7-9

- hello-world: Ensures -> Maintains (v0.15.0 rename).
- zulip-mention-reliability: fold Success Criteria into Maintains postconditions.
- litellm-self-heal: swap gemma/qwen GPU hosts to match actual deployment;
  add Strix Halo 64GB UMA detail; add Rules 7 (roster stuck), 8 (agent keys
  invalid/401), 9 (stale Redis active counter).

litellm-self-heal.prose.md

@@ -70,9 +70,9 @@ message is sent to the responsible agent with full context.
 
 | Host | IP | Hardware | Models | Engine |
 |------|-----|----------|--------|--------|
-| amdpve | 192.168.68.15 | Strix Halo CPU | ornith-1.0-35b (16t, 262K ctx) | llama-server :8080 |
-| llm-gpu | 192.168.68.8 | RTX 3090 24GB | gemma-4-12b Dense | llama-server :8080 |
-| ocu-llm | 192.168.68.110 | RTX 5070 12GB | qwen3.6-27B-code MoE+Light | llama-server :8080 |
+| amdpve | 192.168.68.15 | Strix Halo 64GB UMA | ornith-1.0-35b (16t, 262K ctx) | llama-server :8080 |
+| llm-gpu | 192.168.68.8 | RTX 3090 24GB | qwen3.6-27B-code | llama-server :8080 |
+| ocu-llm | 192.168.68.110 | RTX 5070 12GB | gemma-4-12b | llama-server :8080 |
 
 ## Remediation Rules
 
@@ -100,6 +100,24 @@ Detect → test prompt via LiteLLM returns non-200
 Fix → restart llama-server on GPU host → verify
 Escalate → after 2 failed restarts
 
+### Rule 7: Router Returns 503 (All GPUs Saturated)
+Detect → router logs show QUEUE_TIMEOUT with GPUs idle
+Root cause → roster not loaded at startup (empty TIER_MODELS)
+Fix → POST /admin/roster/reload (if endpoint available) or restart router
+Permanent fix → add load_roster() to router startup code
+Escalate → if reload doesn't resolve within 2 min
+
+### Rule 8: Agent Keys Invalid (401)
+Detect → agents report auth errors
+Root cause → keys in router env var, not in LiteLLM DB
+Fix → generate keys in LiteLLM via /key/generate → update /etc/environment on agent hosts
+Escalate → if SSH access unavailable, send Zulip DM
+
+### Rule 9: Stale Active Counter in Redis
+Detect → active:<model> > 0 while GPU idle
+Fix → `redis-cli DEL active:<model>` → restart router
+Prevent → add TTL to active keys in router code
+
 ## Execution
 
 1. Run health check