refactor: restructure to clean architecture

fix: restore ScoringConfig improvements lost in refactor commit

docs: rewrite README and CLAUDE.md to reflect current architecture

code-format

code fixes

package.json

@@ -1,11 +1,29 @@
 {
-  "name": "stock-screener",
-  "version": "1.0.0",
+  "name": "market-screener",
+  "version": "2.0.0",
   "type": "module",
   "scripts": {
-    "start": "node index.js"
+    "start": "node bin/screen.js",
+    "finance": "node bin/finance.js",
+    "import-portfolio": "node bin/import-portfolio.js",
+    "test": "node --test --test-reporter=./scripts/summary-reporter.js tests/*.test.js",
+    "test:watch": "node --test --watch --test-reporter=spec tests/*.test.js",
+    "format": "prettier --write \"src/**/*.js\" \"bin/**/*.js\" \"tests/**/*.js\"",
+    "format:check": "prettier --check \"src/**/*.js\" \"bin/**/*.js\" \"tests/**/*.js\"",
+    "prepare": "husky"
+  },
+  "lint-staged": {
+    "*.js": [
+      "prettier --write"
+    ]
   },
   "dependencies": {
+    "dotenv": "^16.0.0",
     "yahoo-finance2": "^3.15.2"
+  },
+  "devDependencies": {
+    "husky": "^9.0.0",
+    "lint-staged": "^15.0.0",
+    "prettier": "^3.0.0"
   }
 }