feat: add BADGE_GENERATION event and submit button

[Henrrypg]

This pull request introduces a new local Open edX event for AI-generated badge definitions, enabling course-level badge generation events to be emitted and consumed by downstream systems. The changes include the definition of event data and signals, a processor for emitting the event, integration into the badge workflow, and the addition of required dependencies.

Open edX Event Integration for Badge Generation:

Event and Data Model Definitions

• Introduced BadgeGenerationData, a data class that extends BadgeTemplateData to include course_id and criteria_narrative, following OEP-49 conventions. This enables course-level badge information to be included in events.

• Added local event and signal definitions for BADGE_GENERATION, following OEP-41 naming conventions, to be contributed upstream in the future.

Event Emission Processor

• Implemented OpenEdXEventsProcessor, a service class responsible for building and emitting the BADGE_GENERATION event, including normalization of input and error handling.

Workflow Integration

• Integrated the event emission into the badge workflow orchestrator via a new submit method, allowing the frontend to trigger badge event submission.

Dependency Management

• Added openedx-events and related dependencies to requirements files to support event emission and data modeling.

[Copilot]

Pull request overview

Adds an Open edX local event (BADGE_GENERATION) for AI-generated badge definitions and wires it into the existing badge workflow so downstream systems (e.g., Credentials/Credly) can consume the emitted event.

Changes:

• Introduces local event schema (BadgeGenerationData) and signal definition (BADGE_GENERATION), plus a processor to build/emit the event.
• Adds a new backend workflow action (submit) and a frontend “Submit Badge” CTA to trigger emission.
• Updates backend requirements to include openedx-events and transitive pins across env requirement sets.

Reviewed changes

Copilot reviewed 17 out of 17 changed files in this pull request and generated 8 comments.

Show a summary per file

File	Description
frontend/src/messages.ts	Adds i18n strings for the new “Submit Badge” UI states.
frontend/src/hooks/useBadgeGeneration.ts	Adds submit state + handler to call the workflow submit action.
frontend/src/components/AIBadgesTab/BadgePreview.tsx	Renders submit button + success/error alerts in the preview pane.
frontend/src/components/AIBadgesTab/AIBadgesTab.tsx	Plumbs submit props from hook into BadgePreview.
backend/openedx_ai_badges/workflows/orchestrators.py	Adds submit action to emit BADGE_GENERATION from session badge data.
backend/openedx_ai_badges/processors/openedx_events_processor.py	New service to normalize inputs and send the Open edX event.
backend/openedx_ai_badges/events/data.py	Defines BadgeGenerationData attrs payload for the event.
backend/openedx_ai_badges/events/signals.py	Defines local BADGE_GENERATION signal using openedx-events tooling.
backend/openedx_ai_badges/events/init.py	Documents local event package purpose/conventions.
backend/requirements/base.in	Adds openedx-events dependency to base input requirements.
backend/requirements/base.txt	Compiled base requirements updated for openedx-events + transitive deps.
backend/requirements/test.txt	Compiled test requirements updated for openedx-events + transitive deps.
backend/requirements/quality.txt	Compiled lint/quality requirements updated for openedx-events + transitive deps.
backend/requirements/dev.txt	Compiled dev requirements updated for openedx-events + transitive deps.
backend/requirements/doc.txt	Compiled docs requirements updated for openedx-events + transitive deps.
backend/requirements/pip.txt	Minor metadata/comment adjustments for pip pin provenance.

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