feat: Add centralized logging system with @link-stack/logger package

- Create new @link-stack/logger package wrapping Pino for structured logging
- Replace all console.log/error/warn statements across the monorepo
- Configure environment-aware logging (pretty-print in dev, JSON in prod)
- Add automatic redaction of sensitive fields (passwords, tokens, etc.)
- Remove dead commented-out logger file from bridge-worker
- Follow Pino's standard argument order (context object first, message second)
- Support log levels via LOG_LEVEL environment variable
- Export TypeScript types for better IDE support

This provides consistent, structured logging across all applications
and packages, making debugging easier and production logs more parseable.

apps/bridge-worker/tasks/fetch-signal-messages.ts

@@ -1,6 +1,9 @@
 import { db, getWorkerUtils } from "@link-stack/bridge-common";
+import { createLogger } from "@link-stack/logger";
 import * as signalApi from "@link-stack/signal-api";
 
+const logger = createLogger('fetch-signal-messages');
+
 const { Configuration, MessagesApi, AttachmentsApi } = signalApi;
 const config = new Configuration({
   basePath: process.env.BRIDGE_SIGNAL_URL,
@@ -59,8 +62,7 @@ const processMessage = async ({
   const { attachments } = dataMessage;
   const rawTimestamp = dataMessage?.timestamp;
 
-  // Debug logging for group detection
-  console.log(`[fetch-signal-messages] Processing message:`, {
+  logger.debug({ 
     sourceUuid,
     source,
     rawTimestamp,
@@ -71,7 +73,7 @@ const processMessage = async ({
     groupV2Id: dataMessage?.groupV2?.id,
     groupContextType: dataMessage?.groupContext?.type,
     groupInfoType: dataMessage?.groupInfo?.type,
-  });
+   }, 'Processing message');
   const timestamp = new Date(rawTimestamp);
 
   const formattedAttachments = await fetchAttachments(attachments);
@@ -148,9 +150,7 @@ const fetchSignalMessagesTask = async ({
       number: phoneNumber,
     });
 
-    console.log(
-      `[fetch-signal-messages] Fetching messages for bot ${id} (${phoneNumber})`,
-    );
+    logger.debug({  botId: id, phoneNumber  }, 'Fetching messages for bot');
 
     for (const message of messages) {
       const formattedMessages = await processMessage({
@@ -160,14 +160,14 @@ const fetchSignalMessagesTask = async ({
       });
       for (const formattedMessage of formattedMessages) {
         if (formattedMessage.to !== formattedMessage.from) {
-          console.log(`[fetch-signal-messages] Creating job for message:`, {
+          logger.debug({ 
             messageId: formattedMessage.messageId,
             from: formattedMessage.from,
             to: formattedMessage.to,
             isGroup: formattedMessage.isGroup,
             hasMessage: !!formattedMessage.message,
             hasAttachment: !!formattedMessage.attachment,
-          });
+           }, 'Creating job for message');
 
           await worker.addJob(
             "signal/receive-signal-message",