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/lib/common.ts

@@ -3,6 +3,9 @@
 import Twilio from "twilio";
 import { CallInstance } from "twilio/lib/rest/api/v2010/account/call";
 import { Zammad, getOrCreateUser } from "./zammad.js";
+import { createLogger } from "@link-stack/logger";
+
+const logger = createLogger('bridge-worker-common');
 
 type SavedVoiceProvider = any;
 
@@ -63,7 +66,7 @@ export const createZammadTicket = async (
     });
   } catch (error: any) {
     if (error.isBoom) {
-      console.error(error.output);
+      logger.error({ output: error.output }, 'Zammad ticket creation failed');
       throw new Error("Failed to create zamamd ticket");
     }
   }

apps/bridge-worker/lib/logger.ts

@@ -1,11 +0,0 @@
-//import { defState } from "@digiresilience/montar";
-//import { configureLogger } from "@digiresilience/bridge-common";
-// import config from "@digiresilience/bridge-config";
-
-//export const logger = defState("workerLogger", {
-//  start: async () => configureLogger(config),
-//});
-//export default logger;
-
-export const logger = {};
-export default logger;

apps/bridge-worker/lib/media-convert.ts

@@ -1,6 +1,9 @@
 import { Readable } from "stream";
 import ffmpeg from "fluent-ffmpeg";
 import * as R from "remeda";
+import { createLogger } from "@link-stack/logger";
+
+const logger = createLogger('bridge-worker-media-convert');
 
 const requiredCodecs = ["mp3", "webm", "wav"];
 
@@ -36,7 +39,7 @@ export const convert = (
       .audioBitrate(settings.bitrate)
       .toFormat(settings.format)
       .on("error", (err, _stdout, _stderr) => {
-        console.error(err.message);
+        logger.error({ error: err }, 'FFmpeg conversion error');
         reject(err);
       })
       .on("end", () => {
@@ -58,7 +61,7 @@ export const selfCheck = (): Promise<boolean> => {
   return new Promise((resolve) => {
     ffmpeg.getAvailableFormats((err, codecs) => {
       if (err) {
-        console.error("FFMPEG error:", err);
+        logger.error({ error: err }, 'FFMPEG error');
         resolve(false);
       }