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, 3 deletions

diff --git a/templates/app.caddy.tmpl b/templates/app.caddy.tmpl
deleted file mode 100644
index 505d1d9..0000000
--- a/templates/app.caddy.tmpl
+++ /dev/null
@@ -1,3 +0,0 @@
-{{.Domain}} {
-    reverse_proxy 127.0.0.1:{{.Port}}
-}