chore(IAWPRegistry): remove unused WorknetTokenFactoryUpdated event

[fadai216]

Summary

IAWPRegistry.sol declares an event that is never emitted anywhere in the codebase:

event WorknetTokenFactoryUpdated(address indexed newFactory);

The worknetTokenFactory is an immutable passed to AWPRegistry in its constructor — there is no setWorknetTokenFactory setter and grep confirms zero emit sites. The event is therefore dead interface surface.

Why it matters

Downstream indexers and skills subscribe to interface events. The awp-core/awp-skill protocol preset currently lists WorknetTokenFactoryUpdated among its tracked events (see that repo's README), so skill users wire up a subscription that can never fire. Misleading for integrators.

Fix

Remove the event declaration from the interface. Zero behavior change (nothing ever emitted it).

A separate follow-up PR against awp-core/awp-skill should drop it from the protocol preset and adjust the count. Done separately to keep this PR minimal.

Diff

 interface IAWPRegistry {
     ...
     event WorknetPaused(uint256 indexed worknetId);
     event WorknetResumed(uint256 indexed worknetId);
     event WorknetCancelled(uint256 indexed worknetId);
     event WorknetRejected(uint256 indexed worknetId);
     event WorknetBanned(uint256 indexed worknetId);
     event WorknetUnbanned(uint256 indexed worknetId);

     // ── Governance parameter events ──
     event GuardianUpdated(address indexed newGuardian);
     event InitialAlphaPriceUpdated(uint256 newPrice);
     event InitialAlphaMintUpdated(uint256 amount);
-    event WorknetTokenFactoryUpdated(address indexed newFactory);
     event DefaultWorknetManagerImplUpdated(address indexed newImpl);
     ...
 }