Initial commit: pi-project-map skill scaffolding

- Design doc with full spec (dense markdown format, hybrid AST+LLM pipeline,
  consumption model, stale data mitigation)
- Implementation plan with 6 milestones and rollout strategy
- TypeScript package structure with all source stubs
- CLI entry point, formatter, discover, init, patch, validate, extract, merge
- Pi SKILL.md with tool definitions and format documentation

package.json

@@ -0,0 +1,39 @@
+{
+  "name": "pi-project-map",
+  "version": "0.1.0",
+  "description": "Pi skill for hierarchical project analysis — generates and maintains .pi-map.md files",
+  "main": "dist/index.js",
+  "types": "dist/index.d.ts",
+  "bin": {
+    "project-map": "dist/cli.js"
+  },
+  "scripts": {
+    "build": "tsc",
+    "dev": "tsc --watch",
+    "test": "vitest",
+    "lint": "eslint src/**/*.ts",
+    "typecheck": "tsc --noEmit"
+  },
+  "keywords": [
+    "pi",
+    "skill",
+    "project-analysis",
+    "code-intelligence",
+    "agent-context"
+  ],
+  "author": "",
+  "license": "MIT",
+  "devDependencies": {
+    "@types/node": "^20.0.0",
+    "typescript": "^5.3.0",
+    "vitest": "^1.0.0",
+    "eslint": "^8.0.0",
+    "@typescript-eslint/eslint-plugin": "^6.0.0",
+    "@typescript-eslint/parser": "^6.0.0"
+  },
+  "dependencies": {
+    "tree-sitter": "^0.21.0",
+    "tree-sitter-typescript": "^0.21.0",
+    "ignore": "^5.3.0"
+  }
+}