fix(sveltekit): Export metrics from worker entry point

[Lms24]

I noticed yesterday that the Sentry.metrics APIs are not available in @sentry/sveltekit when deploying to cloudflare. This is because the worker/index.ts file doesn't re-export it. Meaning, locally in dev, everything works but when deployed, the SDK throws an error.

This PR adds the metrics export.

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Cursor Bugbot has reviewed your changes and found 1 potential issue.

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[github-actions]

size-limit report 📦

Path	Size	% Change	Change
@sentry/browser	29.83 kB	-	-
@sentry/browser - with treeshaking flags	28.03 kB	-	-
@sentry/browser (incl. Tracing)	47.25 kB	-	-
@sentry/browser (incl. Tracing + Span Streaming)	47.27 kB	-	-
@sentry/browser (incl. Tracing, Profiling)	52 kB	-	-
@sentry/browser (incl. Tracing, Replay)	86.59 kB	-	-
@sentry/browser (incl. Tracing, Replay) - with treeshaking flags	76.01 kB	-	-
@sentry/browser (incl. Tracing, Replay with Canvas)	91.28 kB	-	-
@sentry/browser (incl. Tracing, Replay, Feedback)	103.95 kB	-	-
@sentry/browser (incl. Feedback)	47.13 kB	-	-
@sentry/browser (incl. sendFeedback)	34.67 kB	-	-
@sentry/browser (incl. FeedbackAsync)	39.78 kB	-	-
@sentry/browser (incl. Metrics)	30.91 kB	-	-
@sentry/browser (incl. Logs)	31.14 kB	-	-
@sentry/browser (incl. Metrics & Logs)	31.81 kB	-	-
@sentry/react	31.63 kB	-	-
@sentry/react (incl. Tracing)	49.51 kB	-	-
@sentry/vue	34.92 kB	-	-
@sentry/vue (incl. Tracing)	49.24 kB	-	-
@sentry/svelte	29.86 kB	-	-
CDN Bundle	31.87 kB	-	-
CDN Bundle (incl. Tracing)	47.54 kB	-	-
CDN Bundle (incl. Logs, Metrics)	33.41 kB	-	-
CDN Bundle (incl. Tracing, Logs, Metrics)	48.95 kB	-	-
CDN Bundle (incl. Replay, Logs, Metrics)	72.75 kB	-	-
CDN Bundle (incl. Tracing, Replay)	85.18 kB	-	-
CDN Bundle (incl. Tracing, Replay, Logs, Metrics)	86.5 kB	-	-
CDN Bundle (incl. Tracing, Replay, Feedback)	91.01 kB	-	-
CDN Bundle (incl. Tracing, Replay, Feedback, Logs, Metrics)	92.31 kB	-	-
CDN Bundle - uncompressed	94.62 kB	-	-
CDN Bundle (incl. Tracing) - uncompressed	142.12 kB	-	-
CDN Bundle (incl. Logs, Metrics) - uncompressed	99.24 kB	-	-
CDN Bundle (incl. Tracing, Logs, Metrics) - uncompressed	146.1 kB	-	-
CDN Bundle (incl. Replay, Logs, Metrics) - uncompressed	223.94 kB	-	-
CDN Bundle (incl. Tracing, Replay) - uncompressed	261.38 kB	-	-
CDN Bundle (incl. Tracing, Replay, Logs, Metrics) - uncompressed	265.34 kB	-	-
CDN Bundle (incl. Tracing, Replay, Feedback) - uncompressed	275.08 kB	-	-
CDN Bundle (incl. Tracing, Replay, Feedback, Logs, Metrics) - uncompressed	279.04 kB	-	-
@sentry/nextjs (client)	52.08 kB	-	-
@sentry/sveltekit (client)	47.71 kB	-	-
@sentry/core/server	65.52 kB	-	-
@sentry/core/browser	51.88 kB	-	-
@sentry/node	120.24 kB	+0.01%	+1 B 🔺
@sentry/node/import (ESM hook with diagnostics-channel injection)	0 B	added	added
@sentry/node - without tracing	83.69 kB	+0.01%	+1 B 🔺
@sentry/aws-serverless	92.35 kB	-0.01%	-1 B 🔽
@sentry/cloudflare (withSentry) - minified	218.65 kB	-	-
@sentry/cloudflare (withSentry)	538.85 kB	-	-

View base workflow run

[nicohrubec]

just noticed the test additions are only in the backport, is that on purpose?

[Lms24]

Not intentional. I thought I pushed them but 🤷
Will add them tomorrow. Thx for flagging!