[WIP] Summer of code 2025 summary posts

[ktoso]

Motivation:

Every year we participate in summer of code, and usually we aim to highlight the results to get additional eyes on the projects and also interest for additional contributions etc.

Last year we missed this, as coordinating the posts proved too difficult to pull off in a timely manner after gsoc concluded. This year we prepared 4 "long" posts on the forums with the intent that we'll highlight them from the blog, where we'd take the same posts but "shorten" them.

In earlier chats with @timsneath we concluded that one-post-per-project is after all preferable, because we can then roll them out "one post a week" for example.

• In 2023 posted one collective summary: https://www.swift.org/blog/summer-of-code-2023-summary/
• In 2024 we wanted to do independent posts, but scheduling them after GSoC concluded proved difficult and we missed this... Only Lokesh wrote a post Add the Expansion of Swift Macros in VS Code Blog Post of Google Summer of Code 2024 #824 and we missed merging those 😢
• In 2025 to fix the 2024 mistake we required students to write a long post on the forums, with the intent that we'll highlight them from the blog. Eventually we concluded one post per project would be preferable, so this is my attempt to turn those posts into a: "short here + read more on forums".

Modifications:

Adds drafts for the 4 posts we'd want to publish this year.

Approved:

• @madsodgaard
• @tienquocbui
• @a7medev
• @roulpriya

[hamishknight]

Couple of minor nits but Ahmed's section LGTM

[madsodgaard]

LGTM for my part!

Maybe we should add a link to the recently released talk as well?
https://youtu.be/tOH6V1IvTAc?si=5GW7qW28tHh3Jfl2

[a7medev]

Thanks @ktoso! I've added some suggested changes to the original post.

[ktoso]

Thanks everyone for approving -- I'll stage those out as separate PRs then :-)