fix: replace illegal await-in-constructor with static crypto import (Web3 Factory broken)

[0xAxiom]

What

Fix a SyntaxError that prevents the Web3 Factory (web3 idea <IDEA>) from starting.

Root Cause

dapp-factory/pipeline/web3_pipeline.ts uses await import('crypto') inside the Web3Pipeline class constructor:

// ❌ Broken — constructors are synchronous, await is illegal here
constructor(config: Web3PipelineConfig) {
  ...
  const crypto = await import('crypto');   // SyntaxError at runtime
  const ideaHash = crypto.createHash('md5')...

At runtime Node.js throws:

SyntaxError: Unexpected reserved word

This crashes the process before any pipeline stage runs.

Why it wasn't caught by TypeScript: dapp-factory/tsconfig.json excludes pipeline/** from compilation, so the compiler never saw this file.

Fix

Replace the illegal dynamic import with a static import at the top of the file — consistent with prompt_enforcer.ts, which already uses import * as crypto from 'crypto':

// ✅ Fixed
import * as crypto from 'crypto';
...
constructor(config: Web3PipelineConfig) {
  ...
  const ideaHash = crypto.createHash('md5')...

No behaviour change. crypto is a Node.js built-in; static import is equivalent and synchronous.

Tested

• Manually verified the constructor no longer throws
• npm test — 252/252 tests pass ✅