Add strikethrough for completed cycle projects

[redreceipt]

Summary

• fetch project status name
• show completed cycle projects with a strikethrough when status is Completed
• hide countdown info when project is completed

Testing

• pytest -q
• flake8 *.py (fails: flake8 not installed due to network restrictions)

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https://chatgpt.com/codex/tasks/task_e_687e80d8bf048324a488c45e42653e4e

[Copilot]

Pull Request Overview

This PR adds visual styling and improved organization for completed cycle projects in the team dashboard. When projects have a "Completed" status, they now display with strikethrough text and hide countdown information that's no longer relevant.

• Fetch project status information from the Linear API to identify completed projects
• Apply strikethrough styling to completed projects and hide countdown timers
• Separate completed projects into a dedicated collapsible section

Reviewed Changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 1 comment.

File	Description
linear.py	Adds status field to GraphQL query to fetch project completion status
app.py	Implements logic to separate completed projects from active ones and pass to template
templates/team.html	Adds CSS styling and conditional rendering for completed projects

Comments suppressed due to low confidence (1)

[Copilot]

[nitpick] The completed projects section defaults to being open with open attribute. Consider if this should be collapsed by default to reduce visual clutter, especially when there are many completed projects.

Suggested change

	<details open>
	<details>