refactor: reorganize scripts - move debug code to experiments/

- Move debug/test scripts from src/scripts/ to experiments/
- Remove test-detail-endpoint from package.json
- Delete temp-product-page.html
- Move E2E_GUIDE.md to docs/
- Add experiments/README.md with documentation
- Keep only production scripts in src/scripts/
- Clean up tsconfig.json exclude list (experiments are now outside src/)

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

experiments/README.md

@@ -0,0 +1,42 @@
+# Experiments Directory
+
+This directory contains archived debug and experimental scripts used during development.
+
+## Structure
+
+### `magnit-detail-endpoints/`
+Scripts used to discover and test Magnit API endpoints for product details:
+- `debug-detail-response.ts` - Debug API response structure and field parsing
+- `test-detail-endpoint.ts` - Test specific detail endpoints using MagnitApiScraper
+- `test-all-detail-endpoints.ts` - Test multiple endpoints for product details
+- `test-object-reviews-endpoint.ts` - Test user-reviews-and-object-info endpoint
+- `find-product-detail-api.ts` - Find correct API endpoints for product details
+- `find-product-detail-endpoint-v1.ts` - Find v1 API endpoints for product details
+
+**Purpose**: These scripts were used to reverse-engineer the Magnit product detail API during the enrichment feature development.
+
+### `html-extraction/`
+Scripts for web scraping fallback exploration:
+- `extract-product-from-html.ts` - Extract product data from HTML for future Playwright-based web scraping
+
+**Purpose**: Experimental code for planned web scraping functionality (Phase 5).
+
+## Usage
+
+These scripts are **not production code** and are kept for reference. They may:
+- Use DOM APIs (`document`, `window`) that require browser context
+- Have hard-coded test data
+- Be one-off experiments that are no longer maintained
+
+To run these scripts, you may need to adjust `tsconfig.json` to include DOM types:
+```json
+{
+  "compilerOptions": {
+    "lib": ["ES2023", "dom"]
+  }
+}
+```
+
+## Status
+
+Archived - No longer actively maintained. Kept for historical reference and potential future use.