Remove Go implementation — ship is skills-only nowmain

The skills/ directory fully replaces the old Go CLI. Drop all Go
source, build files, planning docs, and the stale SECURITY.md
(which described the old git-user push-deploy model that no longer
exists). Trim .gitignore to match the new tree.

1 files changed, 0 insertions, 5 deletions

diff --git a/templates/static.caddy.tmpl b/templates/static.caddy.tmpl
deleted file mode 100644
index d04f6b0..0000000
--- a/templates/static.caddy.tmpl
+++ /dev/null
@@ -1,5 +0,0 @@
-{{.Domain}} {
-    root * {{.RootDir}}
-    file_server
-    encode gzip
-}