feat(develop/spans): Add Span Buffer specification #16327
+77
−26
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As discussed yesterday, this PR adds a spec for a span buffer. This is less specified than the Telemetry Processor but more formal than the recommendation in the Span-First implementation guide (which I removed in favor of this page).
Most important change: We added weight-based flushing as an addition to the previous flushing behaviour
closes https://linear.app/getsentry/issue/FE-718/span-buffer-section-in-dev-docs