PIR: Add getEmailData pixel

[landomen]

Task/Issue URL: https://app.asana.com/1/137249556945/task/1213886961787940?focus=true

Description

Add new pixels for email flexibility flow.

Steps to test this PR

Will be testable in later PRs

UI changes

No UI changes

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Note

Medium Risk
Adds new pixel emissions in the PIR runner for the email-data polling stage and changes duration reporting for stage pixels, which could affect analytics accuracy and runtime behavior if state indexing is wrong.

Overview
Adds two new PIR pixels for the email-data polling stage (scan and opt-out): m_dbp_scan_stage_email-get-data and m_dbp_optout_stage_email-get-data, including duration, tries, and action_id parameters.

Wires these pixels into the runner by extending PirRunStateHandler with new states and updating EmailDataReceivedEventHandler to compute stage duration/tries/action id and emit the appropriate scan/opt-out pixel when email-extracted data arrives (skipping email-confirmation steps). Also rounds all stage duration values to the nearest 10ms in PirPixelSender, and expands unit tests to cover the new pixel-emission behavior.

^{Reviewed by Cursor Bugbot for commit 0a2a076. Bugbot is set up for automated code reviews on this repo. Configure here.}

[landomen]

Warning

This pull request is not mergeable via GitHub because a downstack PR is open. Once all requirements are satisfied, merge this PR as a stack on Graphite.
Learn more

• PIR: Add email fallback #8656
• PIR: Add getEmailData pixel #8642 👈 (View in Graphite)
• PIR: Fix email data handling #8641
• PIR: Clear emailExtractedData on step completion #8612
• PIR: Update completeRequestData to support scans and email extracted data #8583
• PIR: Add email polling mechanism #8581
• PIR: Add handling of GenerateEmail action #8294
• PIR: Add broker step action handler logic #8282
• PIR: Add state engine models for email flexibility #8233
• PIR: Add new email flexibility action models #8232
• develop

This stack of pull requests is managed by Graphite. Learn more about stacking.

[github-actions]

Privacy Review task: https://app.asana.com/0/69071770703008/1215007442176755

[cursor]

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

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^{Reviewed by Cursor Bugbot for commit 59f04e1. Configure here.}