add a homepage for the docs site and update the material theme.

[swstica]

Problem

Docs landing page is a copy readme. Too long for a landing page

Solution

Added index.md and added some styling

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ All tests successful. No failed tests found.

@@            Coverage Diff             @@
##             main    #3743      +/-   ##
==========================================
+ Coverage   77.58%   77.64%   +0.06%     
==========================================
  Files        1315     1315              
  Lines      124697   124697              
  Branches    10867    10867              
==========================================
+ Hits        96748    96825      +77     
+ Misses      24816    24782      -34     
+ Partials     3133     3090      -43     

Flag	Coverage Δ
OS-ubuntu-24.04-arm	74.23% <ø> (-0.01%)	⬇️
OS-ubuntu-latest	74.78% <ø> (+<0.01%)	⬆️
Py-3.10	74.78% <ø> (+<0.01%)	⬆️
Py-3.11	74.77% <ø> (-0.01%)	⬇️
Py-3.12	74.77% <ø> (-0.01%)	⬇️
Py-3.13	74.77% <ø> (-0.01%)	⬇️
Py-3.14	74.78% <ø> (-0.01%)	⬇️
Py-3.14t	74.78% <ø> (+<0.01%)	⬆️
SelfHosted-Linux	34.74% <ø> (-0.01%)	⬇️

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see 7 files with indirect coverage changes

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[greptile-apps]

Greptile Summary

The new documentation homepage builds successfully, but the capability section becomes difficult to scan at common desktop widths because it changes to three columns before the constrained article area is wide enough. Keep this section at two columns until the container can support readable card widths.

Confidence Score: 4/5

One non-security P1 responsive-layout regression remains.

The verified homepage layout divides its constrained content region into 203–224px cards at common desktop widths, materially increasing text wrapping.

Files Needing Attention: misc/mkdocs/theme.css

T-Rex Logs

What T-Rex did

• T-Rex established a baseline by comparing the homepage source before validation.
• T-Rex verified the MkDocs build by running a strict build and inspecting the output.
• T-Rex executed the responsive homepage browser-check source to exercise the layout checks.
• T-Rex captured and reviewed visual evidence of responsive layouts across breakpoints, including 961px and 1280px, to verify column behavior.
• T-Rex inspected the homepage internal-link checker output and the responsive UI evidence manifest.

_{Ran code and verified through T-Rex}

_{Reviews (2): Last reviewed commit: "update content on homepage" | Re-trigger Greptile}