refactor(handler): at opentelemtry instrumentation (#125)

# Goals

Gain insight into what's going on with freeway

# Implementation

When in doubt, instrument. This adds opentelemtry and a default
cloudflare open telemetry implementation, that at minimum tells you how
long fetch requests are taking. And it's.... very interesting...

![Screenshot 2024-11-01 at 1 35
23 AM](https://github.com/user-attachments/assets/98b558c7-d37b-4513-9ec3-3b24eee8b584)

This is a trace of about a 64mb file downloading. 

I dunno what to make of all it, except to say... ouch those CARPARK
downloads take a WHILE. I wonder if somehow accessing them through
public URLs is a lot slower?

package.json

@@ -15,8 +15,8 @@
     "prepare": "npm run build",
     "start": "npm run dev",
     "dev": "npm run build:debug && miniflare dist/worker.mjs --watch --debug -m --r2-persist --global-async-io --global-timers",
-    "build": "esbuild --bundle src/index.js --format=esm --sourcemap --minify --outfile=dist/worker.mjs && npm run build:tsc",
-    "build:debug": "esbuild --bundle src/index.js --format=esm --outfile=dist/worker.mjs",
+    "build": "esbuild --bundle src/index.js --format=esm --external:node:buffer --external:node:events --external:node:async_hooks --sourcemap --minify --outfile=dist/worker.mjs && npm run build:tsc",
+    "build:debug": "esbuild --bundle src/index.js --format=esm --external:node:buffer --external:node:events --external:node:async_hooks --outfile=dist/worker.mjs",
     "build:tsc": "tsc --build",
     "test:miniflare": "npm run build:debug && mocha --experimental-vm-modules --recursive test/miniflare/**/*.spec.js",
     "test:unit": "npm run build:debug && mocha --experimental-vm-modules --recursive test/unit/**/*.spec.js",
@@ -35,6 +35,9 @@
   "author": "Alan Shaw",
   "license": "Apache-2.0 OR MIT",
   "dependencies": {
+    "@microlabs/otel-cf-workers": "^1.0.0-rc.48",
+    "@opentelemetry/api": "^1.9.0",
+    "@opentelemetry/sdk-trace-base": "^1.27.0",
     "@web3-storage/blob-fetcher": "^2.3.1",
     "@web3-storage/gateway-lib": "^5.1.2",
     "dagula": "^8.0.0",

src/bindings.d.ts

@@ -12,6 +12,7 @@ export interface Environment
   VERSION: string
   CONTENT_CLAIMS_SERVICE_URL?: string
   ACCOUNTING_SERVICE_URL: string
+  HONEYCOMB_API_KEY: string
 }
 
 export interface AccountingService {