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/package.json

@@ -0,0 +1,23 @@
+{
+  "name": "branch-tools",
+  "version": "0.1.0",
+  "description": "CLI tools for version-aware git branch naming (branching-strategy skill)",
+  "type": "module",
+  "packageManager": "pnpm@9.15.0",
+  "bin": {
+    "branch-tools": "dist/cli/commands.js"
+  },
+  "scripts": {
+    "build": "tsc",
+    "cli": "tsx src/cli/commands.ts"
+  },
+  "devDependencies": {
+    "@types/js-yaml": "^4.0.9",
+    "@types/node": "^22.0.0",
+    "tsx": "^4.19.0",
+    "typescript": "^5.7.0"
+  },
+  "dependencies": {
+    "js-yaml": "^4.1.0"
+  }
+}