feat: implement short ID mapping for BlueBubbles messages and enhance reply context caching

- Added functionality to resolve short message IDs to full UUIDs and vice versa, optimizing token usage.
- Introduced a reply cache to store message context for replies when metadata is omitted in webhook payloads.
- Updated message handling to utilize short IDs for outbound messages and replies, improving efficiency.
- Enhanced error messages to clarify required parameters for actions like react, edit, and unsend.
- Added tests to ensure correct behavior of new features and maintain existing functionality.

src/auto-reply/reply/typing-mode.ts

@@ -95,13 +95,13 @@ export function createTypingSignaler(params: {
 
   const signalToolStart = async () => {
     if (disabled) return;
-    if (!hasRenderableText) return;
+    // Start typing as soon as tools begin executing, even before the first text delta.
     if (!typing.isActive()) {
       await typing.startTypingLoop();
       typing.refreshTypingTtl();
       return;
     }
-    // Keep typing indicator alive during tool execution without changing mode semantics.
+    // Keep typing indicator alive during tool execution.
     typing.refreshTypingTtl();
   };