Rename to Kestrel's Builds, restyle index after Kestrel's Hall

Index copy no longer promises templates or print files for every build.
Add tip jar link and back links from the Green Man page to the index.

Co-Authored-By: Claude Fable 5.2 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01GrX9qMoNihcWLX3xoJhabw

CLAUDE.md

@@ -4,13 +4,13 @@ This file provides guidance to Claude Code (claude.ai/code) when working with co
 
 ## Project Overview
 
-Builds is a static site of craft build write-ups: templates, 3D print files and step-by-step guides. There is no build step and no backend.
+Kestrel's Builds is a static site of craft build write-ups. Builds vary (foam and printed parts, paint techniques, sewing, electronics), so each one ships a guide plus whatever files that project needs. The index must not promise templates or print files for every build. There is no build step and no backend.
 
 **Live URL:** https://builds.kestrelsnest.social
 
 ## File Structure
 
-- `index.html` - Site index (HTML/CSS in one file, no JavaScript). One `<li class="build">` card per build, newest first.
+- `index.html` - Site index (HTML/CSS in one file, no JavaScript). One `<a class="build">` card per build, newest first; the newest also has class `first` (full-width card).
 - `og-image.jpg` - OpenGraph image for the index, 1200 x 630
 - `deploy` - Rsync deployment script
 - `<build>/` - One folder per build, self-contained: `index.html`, `img/`, `dl/`
@@ -19,9 +19,10 @@ Builds is a static site of craft build write-ups: templates, 3D print files and
 ## Conventions
 
 - Each build folder is self-contained and uses relative links, so it works at any path.
-- Build pages and the index share a look: Bricolage Grotesque for headings, Inter for text, the same green accent and neutral tokens, light and dark via `prefers-color-scheme`.
+- The index is a sister page to Kestrel's Hall (gamehall.kestrelsnest.social): the same dark ink / bone / gold tokens, the same serif stack, the same card and section structure. Keep them in step.
+- Every build page links back to the index with `<a href="../">` at its top and bottom (`.home` in `greenman/index.html`).
 - Downloads live in `<build>/dl/`. Zip files there are part of the site, so `*.zip` is deliberately NOT in `.gitignore`.
-- `greenman/index.html` is generated from the mask kit's own source (not in this repo). Hand edits to it are lost when the kit is regenerated; change the source and re-copy.
+- `greenman/index.html` is generated from the mask kit's own source (not in this repo). Hand edits to it are lost when the kit is regenerated; change the source and re-copy, then re-add the two `.home` back links and their CSS.
 
 ## Adding a build