PIR: Add new email flexibility action models

[landomen]

Task/Issue URL: https://app.asana.com/1/137249556945/project/72649045549333/task/1213886961787937?focus=true

Description

Adds new models for two new broker actions needed to support email flexibility.

Steps to test this PR

No QA needed, will be testable on later branches

UI changes

No UI changes

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Note

Low Risk
Low risk: adds new BrokerAction subtypes and Moshi wiring with minor test fake updates; no core opt-out/scan logic changes.

Overview
Adds two new PIR broker action models, BrokerAction.GenerateEmail and BrokerAction.GetEmailData (including pollingTime and extract fields), and updates asActionType() to emit the new action type strings.

Updates PIR’s Moshi polymorphic adapter configuration in PirModule to deserialize these new actionType values, and extends FakePirMessagingInterface to return success responses for them in integration tests.

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[landomen]

• PIR: Add email fallback #8656
• PIR: Add getEmailData pixel #8642
• 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 👈 (View in Graphite)
• develop

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