refactor: complete action testing system overhaul

- Removed /scratch directory, now cloning pullfrogai/scratch as needed
- Implemented new play.ts testing system with local and Docker/act modes
- Added environment variable propagation to cloned test repositories
- Created minimal .act-dist approach to avoid pnpm symlink issues with Docker
- Migrated from dist/index.js to entry.cjs bundled output
- Added TypeScript fixture support with MainParams type safety
- Organized all test fixtures in fixtures/ directory
- Updated publish workflow to trigger on package.json changes
- Removed unnecessary INPUT_ANTHROPIC_API_KEY references
- Added comprehensive documentation for new testing system
- Fixed pre-commit hook to use entry.cjs instead of dist/

fixtures/basic.ts

@@ -0,0 +1,7 @@
+import type { MainParams } from "../main";
+
+const testParams = {
+  prompt: "List all files in the current directory, then create a file called dynamic-test.txt with the content 'This was loaded from a TypeScript file!', then delete it."
+} satisfies MainParams;
+
+export default testParams;

fixtures/basic.txt

@@ -0,0 +1 @@
+Print the list of tools available. Then create a new file called test.txt with the content "Hello from Pullfrog!".