refactor: split ask flow state and view models

package.json

@@ -28,7 +28,7 @@
     "CHANGELOG.md"
   ],
   "scripts": {
-    "dev": "sh -c 'pi --no-extensions --no-skills --no-prompt-templates --no-themes --no-context-files -e ./src/index.ts --skill ./skills/ask-user --cd \"${1:-.}\"' --",
+    "dev": "sh -c 'ROOT=\"$PWD\"; TARGET=\"${1:-.}\"; if [ \"$TARGET\" = \"--\" ]; then TARGET=\"${2:-.}\"; fi; cd \"$TARGET\" && pi --no-extensions --no-skills --no-prompt-templates --no-themes --no-context-files -e \"$ROOT/src/index.ts\" --skill \"$ROOT/skills/ask-user\"' --",
     "test": "node --test tests/*.test.ts",
     "typecheck": "tsc -p tsconfig.json",
     "format": "biome format --write .",