feat: enhance pi-agent configuration with detailed model settings and fallback options

.devcontainer/pi-config/models.json

@@ -3,26 +3,62 @@
     "omniroute": {
       "baseUrl": "http://localhost:20128/v1",
       "api": "openai-completions",
-      "apiKey": "***",
-      "compat": {
-        "supportsDeveloperRole": false,
-        "supportsReasoningEffort": false
-      },
+      "apiKey": "no-key-needed",
       "models": [
-        { "id": "auto-fastest" }
-      ]
+        {
+          "id": "auto-fastest",
+          "name": "Auto Fastest",
+          "api": "openai-completions",
+          "provider": "omniroute",
+          "baseUrl": "http://localhost:20128/v1",
+          "reasoning": true,
+          "input": ["text"],
+          "cost": {
+            "input": 0,
+            "output": 0,
+            "cacheRead": 0,
+            "cacheWrite": 0
+          },
+          "contextWindow": 256000,
+          "maxTokens": 131072
+        }
+      ],
+      "fallback": {
+        "chain": ["modelrelay/auto-fastest"],
+        "timeoutMs": 30000,
+        "onlyPreFirstToken": true,
+        "notifyOnSwitch": true
+      }
     },
     "modelrelay": {
       "baseUrl": "http://localhost:7352/v1",
       "api": "openai-completions",
       "apiKey": "no-key-needed",
-      "compat": {
-        "supportsDeveloperRole": false,
-        "supportsReasoningEffort": false
-      },
       "models": [
-        { "id": "auto-fastest" }
-      ]
+        {
+          "id": "auto-fastest",
+          "name": "Auto Fastest",
+          "api": "openai-completions",
+          "provider": "modelrelay",
+          "baseUrl": "http://localhost:7352/v1",
+          "reasoning": true,
+          "input": ["text"],
+          "cost": {
+            "input": 0,
+            "output": 0,
+            "cacheRead": 0,
+            "cacheWrite": 0
+          },
+          "contextWindow": 256000,
+          "maxTokens": 131072
+        }
+      ],
+      "fallback": {
+        "chain": ["omniroute/auto-fastest"],
+        "timeoutMs": 30000,
+        "onlyPreFirstToken": true,
+        "notifyOnSwitch": true
+      }
     }
   }
 }

.devcontainer/pi-config/settings.json

@@ -1,5 +1,8 @@
 {
   "defaultProvider": "omniroute",
   "defaultModel": "auto-fastest",
-  "lastChangelogVersion": "0.84.2"
+  "lastChangelogVersion": "0.84.2",
+  "packages": [
+    "git:github.com/gitricko/pi-failover@hermes-impl"
+  ]
 }

.devcontainer/post-create-cmd.sh

@@ -239,7 +239,7 @@ if command -v omniroute &>/dev/null; then
     echo "[$SCRIPT_NAME] omniroute is already running, skipping"
   else
     echo "[$SCRIPT_NAME] Starting omniroute in the background..."
-    setsid /usr/local/bin/omniroute >> /tmp/omniroute.log 2>&1 &
+    setsid /usr/local/bin/omniroute --no-open >> /tmp/omniroute.log 2>&1 &
   fi
 else
     echo "[$SCRIPT_NAME] omniroute not found, skipping start"
@@ -255,7 +255,6 @@ else
   echo "[$SCRIPT_NAME] pi-agent installed"
 fi
 
-
 # Install TailScale
 sudo mkdir -p /var/run/tailscale /var/lib/tailscale && sudo curl -fsSL https://tailscale.com/install.sh | sh && sudo rm -rf /var/lib/apt/lists/*
 

.devcontainer/start-hermes.sh

@@ -175,6 +175,10 @@ if [ -d "$PI_CONF_TRACKED" ]; then
   done
 fi
 
+# Install Pi-agent hermes like fallback extension
+echo "[$SCRIPT_NAME] Installing Pi-agent extension..."
+pi install git:github.com/gitricko/pi-failover@hermes-impl
+
 # 5.7. Starting keepalive (idempotent) — keeps codespace from idle-shutting-down
 if ! pgrep -f "keepalive.sh" > /dev/null; then
     echo "[$SCRIPT_NAME] Starting keepalive..."