feat(FEC-15050): Compliance Viewing Plugin — real-time unique watched percentage tracking and completion beacon

[Tzipi-kaltura]

Description of the Changes

Adding new application type - CONTENT_MILESTONE
Adding new events with the above type: video started, video completed it's dispatched from vod-completion plugin.

related to - https://github.com/kaltura/playkit-js-vod-completion/pull/1

solves FEC-15050

CheckLists

• changes have been done against master branch, and PR does not conflict
• new unit / functional tests have been added (whenever applicable)
• test are passing in local environment
• Travis tests are passing (or test results are not worse than on master branch :))
• Docs have been updated

[Copilot]

Pull request overview

Adds support in the Kava plugin for a new application analytics event type (CONTENT_MILESTONE) intended to be emitted by the VOD completion plugin, including optional completion-threshold metadata.

Changes:

• Introduces ApplicationEventType.CONTENT_MILESTONE and ApplicationFeature.VOD_COMPLETION.
• Adds VOD completion plugin event constants and maps them into ApplicationEventsModel as content-milestone application events.
• Extends application-event validation to accept events identified via eventName, and adds an E2E model test for the new event type.

Reviewed changes

Copilot reviewed 6 out of 6 changed files in this pull request and generated 4 comments.

Show a summary per file

File	Description
test/e2e/application-events.model.spec.js	Adds coverage for the new CONTENT_MILESTONE mapping in getApplicationEventsModel.
src/kava.ts	Updates application-event validity check to treat eventName as a valid discriminator.
src/enums/application-feature.ts	Adds VOD_COMPLETION feature identifier.
src/enums/application-event-type.ts	Adds CONTENT_MILESTONE application event type ID.
src/applications-events.ts	Defines VOD completion plugin event names and includes them in PluginsEvents.
src/application-events-model.ts	Maps the new plugin events to application analytics payloads and adds CONTENT_MILESTONE field handling.

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