Bug: letify flags different streams as duplicates due to $any()

[donesait]

Proposed Solutions

1. Smart $any parsing (parse obj.prop chains)
2. CLI flag: --ignore-different-any-streams
3. Config: ignorePatterns: ['$any.*.differentProp$']

Minimal Repro

// tsconfig.json
{ "angularCompilerOptions": { "strictTemplates": true } }

@Input() vm!: { stateA$: Observable<string>; stateB$: Observable<string> };

@let a = $any(vm.stateA$) | async;  // letify: ❌ duplicate!
@let b = $any(vm.stateB$) | async;

Question: Can we get property-aware $any() tracking? Affects 100+ components.

PRs welcome! 🙏