feat: add discord rich presence (#105)

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### Dependencies

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### Tests

- [ ] My contribution adds new code, and I have added tests to cover it.
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Reviewed-on: #105
Co-authored-by: Naomi Carrigan <commits@nhcarrigan.com>
Co-committed-by: Naomi Carrigan <commits@nhcarrigan.com>

src/lib/components/InputBar.svelte

@@ -6,7 +6,7 @@
   import { claudeStore, isClaudeProcessing } from "$lib/stores/claude";
   import { characterState } from "$lib/stores/character";
   import { handleNewUserMessage } from "$lib/notifications/rules";
-  import { setSkipNextGreeting } from "$lib/tauri";
+  import { setSkipNextGreeting, updateDiscordRpc } from "$lib/tauri";
   import { clipboardStore } from "$lib/stores/clipboard";
   import {
     setShouldRestoreHistory,
@@ -26,6 +26,7 @@
     type SlashCommand,
   } from "$lib/commands/slashCommands";
   import { configStore, isStreamerMode } from "$lib/stores/config";
+  import { conversationsStore } from "$lib/stores/conversations";
   import { stats, estimateMessageCost, formatTokenCount } from "$lib/stores/stats";
   import AttachmentPreview from "$lib/components/AttachmentPreview.svelte";
   import SnippetLibraryPanel from "$lib/components/SnippetLibraryPanel.svelte";
@@ -350,6 +351,17 @@ User: ${formattedMessage}`;
               working_dir: workingDir,
             },
           });
+
+          // Update Discord RPC when reconnecting
+          const config = configStore.getConfig();
+          const activeConversation = get(conversationsStore.activeConversation);
+          if (activeConversation) {
+            await updateDiscordRpc(
+              activeConversation.name,
+              config.model || "claude",
+              activeConversation.startedAt
+            );
+          }
         } catch (reconnectError) {
           console.error("Failed to auto-reconnect:", reconnectError);
           claudeStore.addLine("error", `Failed to reconnect: ${reconnectError}`);