fix(frontend): tailscale prompt on every login

[scottmckendry]

Summary by CodeRabbit

Release Notes

• Bug Fixes
  • Improved login flow handling when Tailscale device information is missing or not yet available, reducing false-negative checks and preventing unnecessary login/redirect interruptions.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Path: .coderabbit.yaml

Review profile: CHILL

Plan: Pro Plus

Run ID: 6687f6dd-0812-4cd3-a705-a42bf5dd39bd

📥 Commits

Reviewing files that changed from the base of the PR and between 0d4a133 and 82955c6.

📒 Files selected for processing (2)

• frontend/src/pages/login-page.tsx
• frontend/src/schemas/user-context-schema.ts

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📝 Walkthrough

Walkthrough

Makes Tailscale's nodeName optional in the user context schema and updates the login page to initialize useTailscale by checking tailscale.nodeName !== undefined.

Changes

Tailscale Configuration Updates

Layer / File(s)	Summary
Schema contract update frontend/src/schemas/user-context-schema.ts	tailscaleSchema.nodeName changed from required string() to string().optional(), making tailscale.nodeName optional in the inferred user context type.
Login page state initialization frontend/src/pages/login-page.tsx	useTailscale state initialization now uses tailscale.nodeName !== undefined instead of comparing to an empty string.

Estimated code review effort

🎯 2 (Simple) | ⏱️ ~8 minutes

Poem

🐰 A nodeName once required, now light,
Schema whispers "optional" in the night.
Login checks for presence, not for show,
Quiet changes help the flow.
— a happy rabbit

🚥 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 title accurately describes the main fix: preventing the tailscale prompt from appearing on every login by changing nodeName validation logic.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

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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/tailscale-prompt

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.

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