feat(HackathonSelector): add "New Hackathon" option to hackathon swit…

[ryzen-xp]

Closes #418

Adds a "New Hackathon" shortcut at the bottom of the hackathon switcher dropdown.

Changes

• HackathonSelector.tsx — Added organizationId prop, imported Plus and DropdownMenuSeparator, added conditional "New Hackathon" menu item
• HackathonSidebar.tsx — Added organizationId to SidebarContentProps, passed derivedOrgId to HackathonSidebarContent and down to HackathonSelector

Behavior

• "New Hackathon" item appears only when hackathons.length > 0 (no change to empty-state null guard)
• Clicking navigates to /organizations/[id]/hackathons/new
• Separated from existing items via DropdownMenuSeparator with bg-[#2B2B2B]
• Styling matches existing DropdownMenuItem conventions

Summary by CodeRabbit

• New Features
  • Added a "New Hackathon" item (with plus icon) to the hackathon selector dropdown, letting users jump directly to the new-hackathon creation flow.
  • The new option appears only when an organization context is available and does not change existing selection or navigation behavior.

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[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro

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• Linear integration is disabled

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📥 Commits

Reviewing files that changed from the base of the PR and between d72fa12 and fde08db.

📒 Files selected for processing (1)

• components/organization/hackathons/details/HackathonSelector.tsx

🚧 Files skipped from review as they are similar to previous changes (1)

• components/organization/hackathons/details/HackathonSelector.tsx

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📝 Walkthrough

Walkthrough

Adds a "New Hackathon" item to the hackathon switcher dropdown and passes an optional organizationId prop through the sidebar to the selector so the menu can navigate to /organizations/{organizationId}/hackathons/new.

Changes

Cohort / File(s)	Summary
Hackathon Selector Enhancement components/organization/hackathons/details/HackathonSelector.tsx	Added optional organizationId?: string prop, imported Plus and DropdownMenuSeparator, and appended a conditional "New Hackathon" DropdownMenuItem (with separator and Plus icon) that navigates to /organizations/{organizationId}/hackathons/new.
Hackathon Sidebar Propagation components/organization/hackathons/details/HackathonSidebar.tsx	Added optional organizationId to SidebarContentProps and passed organizationId down into HackathonSelector.

Sequence Diagram(s)

(omitted)

Estimated code review effort

🎯 2 (Simple) | ⏱️ ~10 minutes

Suggested reviewers

• 0xdevcollins

Poem

🐰 A tiny plus hops into the list with glee,
A shortcut to build where new ideas be.
I nibble the menu, click—off we leap,
Straight to a page where fresh hackathons sleep.
Hop on, create, let the countdown be! 🎉

🚥 Pre-merge checks | ✅ 4 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 0.00% which is insufficient. The required threshold is 80.00%.	Write docstrings for the functions missing them to satisfy the coverage threshold.

✅ Passed checks (4 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly summarizes the main change: adding a 'New Hackathon' option to the hackathon switcher dropdown, which is the primary objective of the PR.
Linked Issues check	✅ Passed	The PR successfully implements all requirements from issue #418: renders the 'New Hackathon' item with Plus icon and separator, passes organizationId as a prop, guards against missing organizationId, and maintains existing behavior.
Out of Scope Changes check	✅ Passed	All changes are directly related to implementing the 'New Hackathon' feature. Modifications to HackathonSelector and HackathonSidebar are minimal and focused on the stated objectives.

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✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Post copyable unit tests in a comment

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[coderabbitai]

Actionable comments posted: 1

🤖 Prompt for all review comments with AI agents

Verify each finding against the current code and only fix it if needed.

Inline comments:
In `@components/organization/hackathons/details/HackathonSelector.tsx`:
- Around line 159-168: The New Hackathon menu item currently constructs
router.push(`/organizations/${organizationId}/hackathons/new`) directly and can
navigate to an invalid path when organizationId is undefined; create a named
handler (e.g., handleNewHackathonClick) and move the onClick logic into it, have
the handler first validate organizationId (return early or no-op if falsy), and
update the DropdownMenuItem to use this handler; alternatively conditionally
render or disable the DropdownMenuItem when organizationId is not present to
ensure navigation only occurs with a valid organizationId.

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ℹ️ Review info

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro

Disabled knowledge base sources:

• Linear integration is disabled

You can enable these sources in your CodeRabbit configuration.

📥 Commits

Reviewing files that changed from the base of the PR and between 04c46d6 and d72fa12.

📒 Files selected for processing (2)

• components/organization/hackathons/details/HackathonSelector.tsx
• components/organization/hackathons/details/HackathonSidebar.tsx

[Benjtalkshow]

LGTM!