feat: enable safe reopening of prs

[exploreriii]

Fixes #2428
Tested in dry run mode with some hypothetical scenarios

• [x ] Tested (unit, integration, etc.)

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Review details

⚙️ Run configuration

Configuration used: Path: .coderabbit.yaml

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Run ID: 4c3f67b2-8150-4dd5-99fd-09dafc8968f7

📥 Commits

Reviewing files that changed from the base of the PR and between 985ecb5 and d26954a.

📒 Files selected for processing (2)

• .github/scripts/__tests__/jest/bot-contributor-lifecycle.test.js
• .github/scripts/bot-contributor-lifecycle.js

Walkthrough

The lifecycle bot now treats the latest PR reopen event as activity, resetting inactivity timing before reminder or closure decisions. Tests add synthetic reopen events and cover fresh, reminder-threshold, and close-threshold behavior.

Changes

Reopened PR lifecycle

Layer / File(s)	Summary
Reopen-aware inactivity timing .github/scripts/bot-contributor-lifecycle.js	Adds reopen-event lookup and recalculates PR inactivity age when a newer reopen occurs.
Reopened lifecycle test coverage .github/scripts/__tests__/jest/bot-contributor-lifecycle.test.js	Extends the fake GitHub client with reopened events and tests fresh, reminder, and closure outcomes.

Estimated code review effort: 3 (Moderate) | ~20 minutes

Sequence Diagram(s)

sequenceDiagram
  participant LifecycleBot
  participant GitHubEvents
  participant PullRequest
  LifecycleBot->>PullRequest: evaluate inactivity
  LifecycleBot->>GitHubEvents: fetch issue events
  GitHubEvents-->>LifecycleBot: return latest reopened timestamp
  LifecycleBot->>LifecycleBot: reset activity baseline and age
  LifecycleBot->>PullRequest: remind or close based on recalculated age

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🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title clearly matches the main change: safely handling reopened PRs in the lifecycle bot.
Description check	✅ Passed	The description is related to the PR and mentions fixing #2428 with dry-run testing.
Linked Issues check	✅ Passed	The changes treat reopened PRs as active and reset the inactivity clock, matching #2428.
Out of Scope Changes check	✅ Passed	The diff stays focused on reopened-PR lifecycle behavior and related tests.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.

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View plan used: #2428

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Actionable comments posted: 1

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ℹ️ Review info

⚙️ Run configuration

Configuration used: Path: .coderabbit.yaml

Review profile: ASSERTIVE

Plan: Pro

Run ID: 1040cfb9-0415-4bfb-ad2a-f0bdc2695975

📥 Commits

Reviewing files that changed from the base of the PR and between 92e7bcd and 985ecb5.

📒 Files selected for processing (2)

• .github/scripts/__tests__/jest/bot-contributor-lifecycle.test.js
• .github/scripts/bot-contributor-lifecycle.js

[Copilot]

Pull request overview

This PR updates the contributor-lifecycle GitHub Action bot so that a PR “reopen” event is treated as activity, preventing intentionally revived PRs from being immediately re-closed for inactivity (per #2428).

Changes:

• Add a lastReopenedDate() helper that queries the PR’s issue events and finds the latest reopened timestamp.
• Incorporate the reopen timestamp into PR “last activity” calculation (currently applied only in the close-path).
• Add Jest coverage for reopened PR scenarios.

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 3 comments.

File	Description
.github/scripts/bot-contributor-lifecycle.js	Implements reopen-aware activity detection for reviewed PRs and updates the top-level behavior documentation.
.github/scripts/__tests__/jest/bot-contributor-lifecycle.test.js	Extends the fake Octokit env and adds tests for reopened PR behavior.

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[github-actions]

👋 Hi @exploreriii! Great work completing a Beginner issue! 🎉

Thanks for your contribution! 🚀

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