feat(plugin-typescript): add plugin logic

[BioPhoton]

part of #902

[github-actions]

Code PushUp

🤨 Code PushUp report has both improvements and regressions – compared target commit 18f321d with source commit afd50e7.

🕵️ See full comparison in Code PushUp portal 🔍

🏷️ Categories

🏷️ Category	⭐ Previous score	⭐ Current score	🔄 Score change
Performance	🟡 54	🔴 48
Documentation	🔴 23	🔴 23
Code coverage	🟢 91	🟢 91
Security	🟡 79	🟡 79	–
Updates	🟡 77	🟡 77	–
Accessibility	🟢 92	🟢 92	–
Best Practices	🟢 100	🟢 100	–
SEO	🟡 61	🟡 61	–
Bug prevention	🟢 100	🟢 100	–
Code style	🟢 100	🟢 100	–

👍 2 groups improved, 👎 1 group regressed, 👍 3 audits improved, 👎 7 audits regressed, 13 audits changed without impacting score

🗃️ Groups

🔌 Plugin	🗃️ Group	⭐ Previous score	⭐ Current score	🔄 Score change
Lighthouse	Performance	🟡 54	🔴 48
JSDoc coverage	Documentation coverage	🔴 23	🔴 23
Code coverage	Code coverage metrics	🟢 91	🟢 91

15 other groups are unchanged.

🛡️ Audits

🔌 Plugin	🛡️ Audit	📏 Previous value	📏 Current value	🔄 Value change
Lighthouse	Speed Index	🟨 4.5 s	🟥 6.9 s
Lighthouse	First Contentful Paint	🟨 2.7 s	🟨 2.9 s
Lighthouse	Time to Interactive	🟥 12.4 s	🟥 14.5 s
Lighthouse	Total Blocking Time	🟥 2,360 ms	🟥 6,410 ms
Lighthouse	Largest Contentful Paint	🟨 3.7 s	🟨 3.8 s
JSDoc coverage	Functions coverage	🟥 447 undocumented functions	🟥 448 undocumented functions
Code coverage	Line coverage	🟨 89.8 %	🟨 89.9 %
Code coverage	Branch coverage	🟨 86 %	🟨 86 %
JSDoc coverage	Variables coverage	🟥 200 undocumented variables	🟥 203 undocumented variables
Code coverage	Function coverage	🟩 92.9 %	🟩 92.9 %
Lighthouse	Minimizes main-thread work	🟥 10.7 s	🟥 19.9 s
Lighthouse	Metrics	🟩 100%	🟩 100%
Lighthouse	JavaScript execution time	🟥 5.5 s	🟥 7.5 s
Lighthouse	Max Potential First Input Delay	🟥 1,530 ms	🟥 2,250 ms
Lighthouse	Uses efficient cache policy on static assets	🟨 27 resources found	🟨 27 resources found
Lighthouse	Avoids enormous network payloads	🟩 Total size was 1,818 KiB	🟩 Total size was 1,818 KiB
Lighthouse	Eliminate render-blocking resources	🟥 Potential savings of 1,000 ms	🟥 Potential savings of 1,040 ms
Lighthouse	Initial server response time was short	🟩 Root document took 330 ms	🟩 Root document took 360 ms
Lighthouse	Server Backend Latencies	🟩 90 ms	🟩 110 ms
Lighthouse	Reduce unused CSS	🟥 Potential savings of 67 KiB	🟥 Potential savings of 67 KiB
Lighthouse	Network Round Trip Times	🟩 20 ms	🟩 20 ms
Lighthouse	Avoid large layout shifts	🟩 1 layout shift found	🟩 0
Lighthouse	Cumulative Layout Shift	🟩 0	🟩 0

573 other audits are unchanged.