CROSSLINK-270 Send email notifications

[JanisSaldabols]

No description provided.

[Copilot]

Pull request overview

Adds support for state-model-driven email notifications by introducing a new send-notification action (with parameters like recipients + template label), wiring notification auto-actions into the patron-request action runner, and refactoring SMTP/MIME email construction into a shared broker/email package used by both scheduler pullslip emailing and patron-request notifications.

Changes:

• Extend state model / OpenAPI schemas to allow per-action params (including sendTo and templateLabel) and add send-notification auto-actions to the returnables workflow.
• Refactor scheduler pullslip emailing to use a new broker/email package and an EmailService abstraction.
• Add send-notification handling to patron-request action execution (borrower + lender) and add tests; bump a few Go dependencies.

Reviewed changes

Copilot reviewed 16 out of 17 changed files in this pull request and generated 11 comments.

Show a summary per file

File	Description
misc/state-model.json	Updates schema to allow action params (including notification params).
misc/returnables.yaml	Adds send-notification auto-actions for shipped/unfilled/validated states.
broker/scheduler/service/email_sender.go	Refactors pullslip emailing to use broker/email and readiness checks.
broker/scheduler/service/email_sender_test.go	Updates tests for the refactored email sender abstraction.
broker/scheduler/service/batch_action_test.go	Adjusts batch action tests for updated email sender wiring.
broker/patron_request/service/statemodels/returnables.json	Regenerates compiled returnables model with notification actions.
broker/patron_request/service/statemodel_capabilities.go	Registers send-notification as a built-in action capability.
broker/patron_request/service/action.go	Implements send-notification action execution + directory/patron recipient resolution.
broker/patron_request/service/action_test.go	Adds tests for notification email lookup/sending and action execution paths.
broker/patron_request/service/action_mapping.go	Changes auto-action extraction to retain full action definitions (incl. params).
broker/patron_request/service/action_mapping_test.go	Updates mapping expectations to include notification auto-actions.
broker/oapi/open-api.yaml	Extends API schema to describe action params incl. notification fields.
broker/go.mod	Bumps dependency versions (oapi-codegen runtime, testcontainers, gopsutil).
broker/go.sum	Updates checksums for bumped dependencies.
broker/email/email.go	New shared SMTP/MIME email builder + EmailService implementation.
broker/email/email_test.go	Unit tests for raw MIME message building and address joining.
broker/app/app.go	Wires the new email service into patron-request actions and scheduler batch actions.

[Copilot]

Pull request overview

Copilot reviewed 19 out of 20 changed files in this pull request and generated 3 comments.

[Copilot]

Pull request overview

Copilot reviewed 18 out of 18 changed files in this pull request and generated 3 comments.