feat(dev-env): shell scripts (git-hooks, worktree, deploy, regtest, nav) and smoke test

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

modules/dev-env/scripts/lib-colors.sh

@@ -0,0 +1,17 @@
+# dev-env — shared ANSI colour palette.
+#
+# Installed at /etc/dev-env/lib-colors.sh and sourced by the standalone
+# bins (bootstrap / rebase / status). Superset of the codes each script
+# used before they were consolidated here. Plain assignments (not
+# readonly) so re-sourcing is harmless. Each script keeps its own log
+# helpers (info/ok/warn/… formats differ by tool); only the constants
+# are shared.
+
+RED='\033[0;31m'
+GREEN='\033[0;32m'
+YELLOW='\033[1;33m'
+BLUE='\033[0;34m'
+CYAN='\033[0;36m'
+BOLD='\033[1m'
+DIM='\033[2m'
+NC='\033[0m'