feat: Allow Session Replay to retry payloads

[metal-messiah]

Payloads failed with retryable codes will be re-harvested by the agent. Further session replay data will not be collected until the harvest retries successfully.

Overview

Related Issue(s)

Testing

New tests have been added.

[github-actions]

Supportability Metric Usage Changes:

No matching changes found

Supportability Metrics .md File Changes:

supportability_metrics.md was changed? false

New supportability metrics require changes to supportability_metrics.md, as well as a new PR to Angler. Please ensure an Angler PR is created and linked to this PR.

[github-actions]

Asset Size Report

Merging this pull request will result in the following asset size changes:

Agent	Asset	Previous Size	New Size	Diff
lite	loader	27.18 kB / 10.25 kB (gzip)	27.18 kB / 10.25 kB (gzip)	0% / 0% (gzip)
lite	async-chunk	54.67 kB / 18.32 kB (gzip)	54.67 kB / 18.32 kB (gzip)	0% / 0% (gzip)
pro	loader	59.75 kB / 20.78 kB (gzip)	59.78 kB / 20.79 kB (gzip)	0.05% / 0.08% (gzip)
pro	async-chunk	93.54 kB / 29.57 kB (gzip)	93.75 kB / 29.6 kB (gzip)	0.22% / 0.13% (gzip)
spa	loader	68.71 kB / 23.58 kB (gzip)	68.74 kB / 23.61 kB (gzip)	0.04% / 0.11% (gzip)
spa	async-chunk	118.98 kB / 36.69 kB (gzip)	119.19 kB / 36.73 kB (gzip)	0.18% / 0.12% (gzip)

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 88.42%. Comparing base (a429d42) to head (1a9555f).

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1666      +/-   ##
==========================================
+ Coverage   88.35%   88.42%   +0.06%     
==========================================
  Files         207      207              
  Lines        7910     7919       +9     
  Branches     1641     1645       +4     
==========================================
+ Hits         6989     7002      +13     
+ Misses        804      801       -3     
+ Partials      117      116       -1     

Flag	Coverage Δ
unit-tests	82.05% <100.00%> (+0.11%)	⬆️

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[github-actions]

Last ran on January 06, 2026 10:24:48 CST
Checking merge of (7c9d7fc) into main (c284cfd)