Fix archive path: homebrew-fonts-main → homebrew-fonts

Gitea archives unpack as homebrew-fonts/, not homebrew-fonts-main/.
Updated formula generator, tests, and docs to match.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

.claude/settings.local.json

@@ -0,0 +1,11 @@
+{
+  "permissions": {
+    "allow": [
+      "Bash(grep:*)",
+      "Bash(ls -1 Formula/*.rb)",
+      "Bash(ls:*)",
+      "Bash(find:*)",
+      "Bash(git ls-tree:*)"
+    ]
+  }
+}