feat(tickets): add a basic (barren) React tickets list page

[wescopeland]

This PR builds the initial React tickets index page. There is a lot missing from this page - intentionally - to narrow this branch's scope. Notably, there are no UI controls of any kind on the page. Mobile is also lacking. This branch's changes are foundational work for the UI, just to get something workable on the screen that can be built on top of.

http://localhost:64000/tickets2
http://localhost:64000/tickets2?filter[status]=all
http://localhost:64000/tickets2?page[number]=2

The UI here already has slight differences from our conventional datatables, even though it very much is a datatable:

• Rows themselves are clickable, leading to the ticket details page.
• Only the ticket ID has a link color, even though the other entities (achievement, leaderboard, game, users) are clickable too. This is to maintain the data hierarchy on the page - if everything gets a link color the hierarchy gets extremely muddied.
• Based on the screen width, text from one column may bleed into text on another column. This is a known issue and will be fixed in a subsequent PR.

Status is represented with an a11y-aware Linear-like glyph:

Eventually, I'd like to see these statuses not only apply to tickets which a dev needs to jump on, but also general "issues" like UWC reports, etc. Eventually, the "Ticket Manager" may become an "Issue Manager", and users will have an "inbox" that shows them the current status of all their issues.

[greptile-apps]

Greptile Summary

Adds the initial authenticated React ticket-list page.

• Builds and serializes ticket-list props.
• Renders responsive ticket rows, links, status glyphs, and empty states.
• Adds backend and frontend coverage.

Confidence Score: 5/5

The PR appears safe to merge.

No blocking failure remains.

_{Reviews (2): Last reviewed commit: "test: add coverage" | Re-trigger Greptile}

[Jamiras]

It's hard to tell whether functionality is intentionally or unintentionally missing (like tooltips).

The basic grid functionality and links all seem to work. I couldn't figure out how to make the status grouping headers appear.

Did not look at code.