DROID-3634 Notifications | Handle pushKeyUpdates and store

[konstantiniiv]

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Description

What type of PR is this? (check all applicable)

• 🍕 Feature
• 🐛 Bug Fix
• 📝 Documentation Update
• 🎨 Style
• 🧑‍💻 Code Refactor
• 🔥 Performance Improvements
• ✅ Test
• 🤖 Build
• 🔁 CI

Related Tickets & Documents

Mobile & Desktop Screenshots/Recordings

Added tests?

• 👍 yes
• 🙅 no, because they aren't needed
• 🙋 no, because I need help

Added to documentation?

• 📜 README.md
• 📓 tech-docs
• 🙅 no documentation needed

[optional] Are there any post-deployment tasks we need to perform?

[Copilot]

Pull Request Overview

This PR implements push key update handling for notifications by introducing a PushKeyProvider that stores push keys into shared preferences and a middleware channel to process events. It adds new tests to verify correct storage and update behavior and integrates these components via dependency injection.

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
presentation/src/test/java/com/anytypeio/anytype/presentation/notifications/PushKeyProviderImplTest.kt	Adds tests for PushKeyProvider behavior and shared preferences updates
presentation/src/main/java/com/anytypeio/anytype/presentation/notifications/PushKeyProviderImpl.kt	Implements a provider that observes push key updates and stores them
middleware/src/test/java/com/anytypeio/anytype/middleware/interactor/PushKeyMiddlewareChannelTest.kt	Provides tests to validate the middleware channel event processing
middleware/src/main/java/com/anytypeio/anytype/middleware/interactor/events/PushKeyMiddlewareChannel.kt	Implements the middleware channel to collect push key updates from events
domain/src/main/java/com/anytypeio/anytype/domain/chats/PushKeyChannel.kt, data/src/main/java/com/anytypeio/anytype/data/auth/event/PushKeyRemoteChannel.kt, core-models/src/main/java/com/anytypeio/anytype/core_models/chats/PushKeyUpdate.kt, app/src/main/java/com/anytypeio/anytype/di/main/NotificationsModule.kt	Introduces supporting interfaces, models, and DI bindings for push key update handling

Comments suppressed due to low confidence (1)

data/src/main/java/com/anytypeio/anytype/data/auth/event/PushKeyRemoteChannel.kt:13

• [nitpick] The class name 'PushKeyDateChannel' appears inconsistent with its purpose; consider renaming it to 'PushKeyDataChannel' if it conveys that the channel manages push key data.

class PushKeyDateChannel(