feat: new endpoint for restoring soft deleted activity

[dzoke]

🎫 Ticket: https://linear.app/stream/issue/XYZ-123

📑 Docs: https://github.com/GetStream/docs-content/pull/

💡 Overview

📝 Implementation notes

Summary by CodeRabbit

• New Features

  • Added event handling for restored activities in the feed system, enabling proper recognition and processing of restoration events.

• Style

  • Code formatting and structure improvements applied for enhanced consistency.

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[coderabbitai]

📝 Walkthrough

Walkthrough

The change adds support for a new event type 'feeds.activity.restored' by mapping it to a no-op handler in the Feed class, enabling acknowledgment of restored activity events. Minor formatting adjustments were also made to the unfollow method.

Changes

Cohort / File(s)	Summary
Event handler for restored activities packages/feeds-client/src/feed/feed.ts	Added new event mapping 'feeds.activity.restored' → Feed.noop to eventHandlers object. Formatting updates applied to unfollow method (line breaks and trailing comma).

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~3 minutes

Poem

🐰 When soft-deleted deeds awake anew,
Feed listens close with quiet virtue,
A gentle noop—no action, no cry,
Just graceful silence passing by! ✨

🚥 Pre-merge checks | ✅ 3 | ❌ 2

❌ Failed checks (1 warning, 1 inconclusive)

Check name	Status	Explanation	Resolution
Description check	⚠️ Warning	The description follows the template structure but all substantive content sections (Overview and Implementation notes) are empty, providing no meaningful details about the changes.	Fill in the Overview section with what the endpoint does and Implementation notes with technical details about how soft-deleted activities are restored and how reactions/comments are handled.
Linked Issues check	❓ Inconclusive	The code adds an event handler for 'feeds.activity.restored' but does not demonstrate how reactions and comments relations are preserved during restoration, which was the core requirement in FEEDS-1117.	Clarify whether the implementation preserves reactions and comments as required by FEEDS-1117, or if additional changes are needed to address the missing reactions/comments metadata in restored activities.

✅ Passed checks (3 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title clearly describes the main feature being added: a new endpoint for restoring soft deleted activities, which matches the primary change.
Out of Scope Changes check	✅ Passed	The changes are scoped to adding the event handler for activity restoration and minor formatting updates, which are directly related to the stated objective of supporting soft-deleted activity restoration.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.

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✨ Finishing touches

• 📝 Generate docstrings

Warning

Review ran into problems

🔥 Problems

Errors were encountered while retrieving linked issues.

Errors (1)

• XYZ-123: Entity not found: Issue - Could not find referenced Issue.

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