Add branching-strategy skill with next and create actions

Version-aware branch naming (X.Y.Z.Q/{TASK_CODE}-{FEATURE}-{SEQ}),
branch creation from origin/test with origin/main fallback, and the
PR-into-test merge rule. Ships a TypeScript CLI (next, create) plus
shell modules (loggers, base, cli) run via Taskfile.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

scripts/.scripts/loggers/lib/-printf--warn.sh

@@ -0,0 +1,14 @@
+#!/bin/bash
+# -------------------------------------------------------------------------------------
+#
+#
+#
+# -------------------------------------------------------------------------------------
+
+_loggers_printf__warn() {
+	if
+		[ "${LOGGER_IS_ENABLED_WARN}" = true ]
+	then
+		printf '\033[1;33m%s\033[0m\n' "$*" >&2
+	fi
+}