Fine tuning Live Activity implementation

[bgoncal]

Summary

• Add Live Activity data model translation updates, including support for dynamic title content.
• Provide per-activity push token TTL/expiry metadata to Home Assistant core via expires_at.
• Normalize expires_at to whole-second epoch values to keep the webhook contract stable and avoid fractional timestamp inconsistencies.
• Align Live Activity contract test expectations with the intentional shipped Keychain key (live_activity_token) to keep the test contract consistent with production behavior.

Screenshots

N/A (no user-facing UI changes in this follow-up adjustment)

Link to pull request in Documentation repository

Documentation: home-assistant/companion.home-assistant#

Any other notes

CC @rwarner

[Copilot]

Pull request overview

This pull request fine-tunes the Live Activity implementation by extending the Live Activity content model to support a dynamically updateable title, and by reporting a per-activity push token expiration timestamp back to Home Assistant core.

Changes:

• Add title to HALiveActivityAttributes.ContentState and plumb it through notification payload parsing and Live Activity UI rendering.
• Extend the per-activity push token webhook payload with an expires_at field and freeze the TTL contract in tests.
• Add a DEBUG-only switch to optionally disable local push handling during Live Activity testing.

Reviewed changes

Copilot reviewed 8 out of 8 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
Tests/Shared/LiveActivity/LiveActivityContractTests.swift	Updates wire-format contract tests for new title key and expires_at/TTL assertions.
Tests/Shared/LiveActivity/HandlerLiveActivityTests.swift	Extends handler tests to validate parsing of the new title field.
Sources/Shared/Notifications/NotificationCommands/HandlerLiveActivity.swift	Parses title into the dynamic Live Activity content state.
Sources/Shared/LiveActivity/LiveActivityRegistry.swift	Adds expires_at reporting for push tokens and defines TTL contract constant.
Sources/Shared/LiveActivity/HALiveActivityAttributes.swift	Adds title to ContentState with explicit CodingKeys + Codable support.
Sources/Extensions/Widgets/LiveActivity/HALockScreenView.swift	Uses dynamic state.title when present, falling back to attributes title.
Sources/Extensions/Widgets/LiveActivity/HADynamicIslandView.swift	Uses dynamic state.title when present, falling back to attributes title.
Sources/App/Notifications/NotificationManager.swift	Adds DEBUG-only toggle to force-disallow local push interface for testing.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
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Additional details and impacted files

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