feat: add feature to monitor background agents (#125)

Also includes a fix to persist configuration across reconnects.

Reviewed-on: #125
Co-authored-by: Naomi Carrigan <commits@nhcarrigan.com>
Co-committed-by: Naomi Carrigan <commits@nhcarrigan.com>

src/lib/stores/conversations.ts

@@ -435,7 +435,8 @@ function createConversationsStore() {
       type: TerminalLine["type"],
       content: string,
       toolName?: string,
-      cost?: TerminalLine["cost"]
+      cost?: TerminalLine["cost"],
+      parentToolUseId?: string
     ) => {
       ensureInitialized();
       const activeId = get(activeConversationId);
@@ -448,6 +449,7 @@ function createConversationsStore() {
         timestamp: new Date(),
         toolName,
         cost,
+        parentToolUseId,
       };
 
       conversations.update((convs) => {
@@ -469,7 +471,8 @@ function createConversationsStore() {
       type: TerminalLine["type"],
       content: string,
       toolName?: string,
-      cost?: TerminalLine["cost"]
+      cost?: TerminalLine["cost"],
+      parentToolUseId?: string
     ) => {
       ensureInitialized();
 
@@ -480,6 +483,7 @@ function createConversationsStore() {
         timestamp: new Date(),
         toolName,
         cost,
+        parentToolUseId,
       };
 
       conversations.update((convs) => {