fix: dismiss tooltips before README preview

[AmintaCCCP]

Summary

• dismiss repository description tooltips before opening the README preview modal
• dismiss trending/discovery description and AI summary tooltips before opening README preview
• clear pending tooltip hide timers to prevent stale floating UI from overlapping the modal

Testing

• npm run build

Fixes #197

🤖 Generated with Claude Code

Summary by CodeRabbit

Bug Fixes

• Fixed tooltips remaining visible when opening repository README modals
• Ensured tooltips are properly dismissed when modals appear, providing a cleaner user interface experience across all interaction methods

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro

Run ID: 3d202584-2d91-46c6-bead-003b523ba15c

📥 Commits

Reviewing files that changed from the base of the PR and between 82b22d4 and f160071.

📒 Files selected for processing (2)

• src/components/RepositoryCard.tsx
• src/components/SubscriptionRepoCard.tsx

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📝 Walkthrough

Walkthrough

Both RepositoryCard and SubscriptionRepoCard now hide their floating tooltips immediately before opening the README modal. Each component defines a callback to cancel any pending hide timers, reset refs, and set tooltip visibility to false, then invokes it from their modal-open code paths to prevent tooltip flickering.

Changes

Tooltip dismiss on README modal open

Layer / File(s)	Summary
RepositoryCard description tooltip hide on modal open src/components/RepositoryCard.tsx	hideDescriptionTooltip() callback cancels pending timers and hides the tooltip; it is called before opening the README modal from both the card click and keyboard (Enter/Space) interaction paths.
SubscriptionRepoCard floating tooltips hide on modal open src/components/SubscriptionRepoCard.tsx	hideFloatingTooltips() callback cancels hide timers for both description and AI tooltips, clears timer refs, and sets both tooltip visibility states to false; it is called from handleCardClick before opening the README modal.

Estimated code review effort

🎯 2 (Simple) | ⏱️ ~8 minutes

Possibly related PRs

• AmintaCCCP/GithubStarsManager#170: The new hideDescriptionTooltip and hideFloatingTooltips callbacks extend the tooltip timer behavior introduced in this PR by clearing existing timers before modal open.
• AmintaCCCP/GithubStarsManager#179: Both PRs modify SubscriptionRepoCard's tooltip hiding logic and timer refs to ensure tooltips are correctly dismissed in different scenarios.
• AmintaCCCP/GithubStarsManager#95: Both PRs modify the card click and README modal open flow in SubscriptionRepoCard to manage tooltip state during modal interactions.

Poem

🐰 Tooltips were flickering bright,
Modal opens stole the light—
Now we hide them clean and neat,
Before the readme's sweet retreat!
No more flashing, just delight. 🌟

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The PR title 'fix: dismiss tooltips before README preview' directly describes the main change: clearing tooltips before the README modal opens.
Linked Issues check	✅ Passed	Changes fix tooltip flicker by dismissing tooltips in RepositoryCard and SubscriptionRepoCard before opening README preview, directly addressing issue #197.
Out of Scope Changes check	✅ Passed	All changes are focused on tooltip dismissal logic in two card components before README preview, staying within scope of issue #197.
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

• Create stacked PR
• Commit on current branch

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch fix/readme-preview-dismiss-tooltips

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