gui: gray indicators and 'inactive' label for paused sessions

- Agent dots in tree are gray when parent session is paused
- Top state indicator is gray when viewing agent in paused session
- Top state label shows 'inactive' instead of agent state when paused

gui/main.qml

@@ -173,6 +173,7 @@ ApplicationWindow {
         var displayLabel = agentCount > 0 ? sessionName + " (" + agentCount + ")" : sessionName
         var wasExpanded = sessionExpandedCache[sessionId] !== undefined ? sessionExpandedCache[sessionId] : true
         sessionExpandedCache[sessionId] = wasExpanded
+        var isPaused = sess.paused || false
         
         sessionTreeModel.append({
             type: "session",
@@ -183,7 +184,8 @@ ApplicationWindow {
             model: sess.model || "",
             displayName: displayLabel,
             baseName: sessionName,
-            connectionColor: computeConnectionColor(sess)
+            connectionColor: computeConnectionColor(sess),
+            paused: isPaused
         })
         
         var agentIds = []
@@ -198,7 +200,8 @@ ApplicationWindow {
                 state: agent.state || "idle",
                 connected: agent.connected,
                 displayName: agent.name,
-                parentExpanded: wasExpanded
+                parentExpanded: wasExpanded,
+                parentPaused: isPaused
             })
             agentIds.push(agent.id)
         }
@@ -1125,6 +1128,8 @@ ApplicationWindow {
                                     if (cc === "red") return "#f44336"
                                     return "#9e9e9e"
                                 }
+                                // Agent: gray if parent session is paused
+                                if (parentPaused) return "#9e9e9e"
                                 // Agent: use state role from model
                                 var s = state || "idle"
                                 if (s === "idle") return "#4caf50"
@@ -1181,6 +1186,7 @@ ApplicationWindow {
                     width: 10; height: 10; radius: 5
                     color: {
                         if (!ollie.activeAgentId) return "#9e9e9e"  // gray when no agent
+                        if (ollie.activeSessionId && ollie.isSessionPaused(ollie.activeSessionId)) return "#9e9e9e"  // gray when paused
                         if (ollie.activeState === "idle") return "#4caf50"
                         if (ollie.activeState.startsWith("calling")) return "#ff9800"
                         return "#2196f3"
@@ -1188,7 +1194,11 @@ ApplicationWindow {
                 }
 
                 Label {
-                    text: ollie.activeAgentId ? ollie.activeState : ""
+                    text: {
+                        if (!ollie.activeAgentId) return ""
+                        if (ollie.activeSessionId && ollie.isSessionPaused(ollie.activeSessionId)) return "inactive"
+                        return ollie.activeState
+                    }
                     opacity: 0.7
                     font.pointSize: theme.fontSize > 0 ? theme.fontSize * 0.85 : 11
                 }