Add Sentry, Pino logs, and OTel spans on WS pipeline (M2).

Capture REST/WS/SSE errors in Sentry, emit structured pino logs with correlation IDs, and trace the book-tick pipeline to Sentry via OpenTelemetry.

Co-authored-by: Cursor <cursoragent@cursor.com>

web/package-lock.json

@@ -28,14 +28,23 @@
       "version": "1.0.0",
       "dependencies": {
         "@asteasolutions/zod-to-openapi": "^8.5.0",
+        "@opentelemetry/api": "^1.9.1",
+        "@opentelemetry/sdk-trace-node": "^2.7.1",
         "@scalar/express-api-reference": "^0.8.48",
+        "@sentry/node": "^10.57.0",
+        "@sentry/opentelemetry": "^10.57.0",
+        "@upstash/ratelimit": "^2.0.6",
+        "@upstash/redis": "^1.35.3",
         "express": "^4.21.2",
+        "pino": "^10.3.1",
+        "pino-pretty": "^13.1.3",
         "tsx": "^4.19.2",
         "ws": "^8.18.0",
         "zod": "^4.4.3"
       },
       "devDependencies": {
         "@eslint/js": "^9.18.0",
+        "@playwright/test": "^1.51.1",
         "@types/express": "^4.17.21",
         "@types/node": "^22.10.5",
         "@types/ws": "^8.5.13",