optimize: trim SOUL.md by ~65%, reduce context injection to curated files only, increase requestTimeout to 180s, enable promptCaching per optimization guide

- SOUL.md now <600 bytes (core invariants only)
- Added context.injectAllMarkdown=false + explicit curated list
- requestTimeoutSeconds=180 for high-param models
- promptCaching=true to avoid reprocessing system prompt every turn
- Fixed missing comma in agents.defaults.model (was invalid JSON)

Per https://github.com/OnlyTerp/openclaw-optimization-guide

apps/base/customer1/openclaw/configmap.yaml

@@ -62,7 +62,7 @@ data:
       "agents": {
         "defaults": {
           "model": { 
-            "primary": "xai/grok-4.1-fast"
+            "primary": "xai/grok-4.1-fast",
             "fallbacks": ["xai/grok-4.1-fast"]
           },
           "workspace": "/home/node/.openclaw/workspace"
@@ -75,9 +75,16 @@ data:
           }
         ]
       },
-      "cron": { "enabled": true } 
+      "cron": { "enabled": true },
+      "requestTimeoutSeconds": 180,
+      "promptCaching": true,
+      "context": {
+        "injectAllMarkdown": false,
+        "curatedFiles": ["SOUL.md", "MEMORY.md", "IDENTITY.md", "USER.md"],
+        "useMemorySearch": true
+      }
     }
   AGENTS.md: |
-    # OpenClaw Assistant
+    # Sirius Claw
 
-    You are a helpful AI assistant running in Kubernetes.
+    Professional, precise, dark humor. Running in Lance's GKE cluster.