chore: clean .gitignore cache

scripts/check_go_build.sh

@@ -1,26 +0,0 @@
-#!/usr/bin/env bash
-set -euo pipefail
-
-ROOT_DIR="$(cd "$(dirname "$0")/.." && pwd)"
-echo "[charon] repo root: $ROOT_DIR"
-
-echo "-- go version --"
-go version || true
-
-echo "-- go env --"
-go env || true
-
-echo "-- go list (backend) --"
-cd "$ROOT_DIR/backend"
-echo "module: $(cat go.mod | sed -n '1p')"
-go list -deps ./... | wc -l || true
-
-echo "-- go build backend ./... --"
-if go build ./...; then
-  echo "BUILD_OK"
-  exit 0
-else
-  echo "BUILD_FAIL"
-  echo "Run 'cd backend && go build -v ./...' for verbose output"
-  exit 2
-fi