GUI: handle ollie:// plumb URLs to display chat blocks

Plumb ollie://session/agent#blockid URLs fetch the block via chat.search
and append to the chat pane. Non-persistent display for quick reference.

kde/gui/main.cpp

@@ -10,6 +10,7 @@
 #include <QQmlContext>
 #include <QQuickStyle>
 #include <QStandardPaths>
+#include <QUrl>
 
 #include "ollie9pclient.h"
 #include "sessionmodel.h"
@@ -54,6 +55,28 @@ int main(int argc, char *argv[])
     QObject::connect(ollie, &Ollie9pClient::chatReceived,
                      chatModel, &ChatBlockModel::appendData);
 
+    // Handle ollie:// URLs from plumber — fetch block and display in chat
+    QObject::connect(plumber, &Plumber::ollieMessage, [ollie, chatModel](const QString &url) {
+        // Parse ollie://session/agent#blockid
+        QUrl parsed(url);
+        if (parsed.scheme() != QStringLiteral("ollie"))
+            return;
+        QString path = parsed.path();
+        if (path.startsWith('/'))
+            path = path.mid(1);
+        QStringList parts = path.split('/');
+        if (parts.size() < 2)
+            return;
+        QString sessionId = parts.value(0);
+        QString agentId = parts.value(1);
+        QString blockId = parsed.fragment();
+        if (blockId.isEmpty())
+            return;
+        
+        QString block = ollie->fetchBlock(sessionId, agentId, blockId);
+        if (!block.isEmpty())
+            chatModel->appendData(block);
+    });
 
     engine.rootContext()->setContextProperty("ollie", ollie);
     engine.rootContext()->setContextProperty("sessionModel", sessionModel);

kde/gui/ollie9pclient.cpp

@@ -1073,6 +1073,18 @@ QVariantList Ollie9pClient::listAgentsInSession(const QString &sessionId)
     return result;
 }
 
+QString Ollie9pClient::fetchBlock(const QString &sessionId, const QString &agentId, const QString &blockId)
+{
+    if (sessionId.isEmpty() || agentId.isEmpty() || blockId.isEmpty())
+        return QString();
+    if (!m_9p || !m_9p->isConnected())
+        return QString();
+
+    QString path = QStringLiteral("session/%1/agent/%2/chat.search").arg(sessionId, agentId);
+    QByteArray out = m_9p->rdwr(path, blockId.toUtf8());
+    return QString::fromUtf8(out);
+}
+
 // --- Root data loading (lazy) ---
 
 void Ollie9pClient::ensureRootDataLoaded()

kde/gui/ollie9pclient.h

@@ -113,6 +113,9 @@ public:
     Q_INVOKABLE bool removePeer(const QString &sessionId, const QString &agentId, const QString &peerName);
     Q_INVOKABLE QVariantList listAgentsInSession(const QString &sessionId);
     
+    // Block lookup via chat.search
+    Q_INVOKABLE QString fetchBlock(const QString &sessionId, const QString &agentId, const QString &blockId);
+
 signals:
     void sessionsChanged();
     void activeSessionIdChanged();